Cactus and Succulent Field Number Finder – Results

In some cases, there may be more than one acronym corresponding to the same set of numbers. For example R and WR are used for Rausch's numbers, L and LAU for Lau's numbers, and so on. In such cases, all possibilities will be returned. No distinction is made here according to capitalisation, so e.g. KK, Kk and kk are all treated the same.

Field number: AD 204
Collector: Aldo Delladdio
Species: Thelocactus bicolor ssp. bolaensis
Locality: Cerro Bola, Coahuila, Mexico
Altitude: 1223m
Date: 13-Mar-10
Notes:

Field number: AD 323
Collector: Aldo Delladdio
Species: Thelocactus bicolor ssp. bolaensis
Locality: Cerro Bola, Coahuila, Mexico
Altitude: 1203m
Date: 13-Apr-13
Notes:

Field number: AD 351
Collector: Aldo Delladdio
Species: Thelocactus bicolor
Locality: West of General Cepeda, road to Parras, Coahuila, Mexico
Altitude: 1468m
Date: 23-Oct-13
Notes:

Field number: AD 69
Collector: Aldo Delladdio
Species: Thelocactus bicolor
Locality: Ramos Arizpe, Hill behind Holiday Inn, Coahuila, Mexico
Altitude: 1406m
Date: 26-Jan-06
Notes:

Field number: AD 84
Collector: Aldo Delladdio
Species: Thelocactus bicolor
Locality: South-West of Parras, behind hill with church of Santo Madero, Coahuila, Mexico
Altitude: 1621m
Date: 28-Jan-06
Notes:

Field number: AD 858
Collector: Aldo Delladdio
Species: Thelocactus bicolor
Locality: Palito Prieto, Mapimi, Durango, Mexico
Altitude: 1555m
Date: 25-Feb-22
Notes:

Field number: AD 90
Collector: Aldo Delladdio
Species: Thelocactus bicolor ssp. bolaensis
Locality: West of Tacubaya, Coahuila, Mexico
Altitude: 1152m
Date: 30-Jan-06
Notes:

Field number: AD 903
Collector: Aldo Delladdio
Species: Thelocactus bicolor ssp. bolaensis
Locality: 5km West of Tacubaya, Coahuila, Mexico
Altitude: 1125m
Date: 4-Jul-22
Notes:

Field number: AL 228
Collector: Dr. Andreas Laras
Species: Thelocactus bicolor
Locality: Entronque El Huizache, San Luis Potosí, México
Altitude:
Date:
Notes:

Field number: AL 310
Collector: Dr. Andreas Laras
Species: Thelocactus bicolor v. bolaensis
Locality: Parras de la Fuente, Coahuila, México
Altitude:
Date:
Notes:

Field number: AL 341
Collector: Dr. Andreas Laras
Species: Thelocactus bicolor
Locality: Castaños, Coahuila, México
Altitude:
Date:
Notes:

Field number: AL 36
Collector: Dr. Andreas Laras
Species: Thelocactus bicolor v. flavispinus
Locality: Marathon, Texas, USA
Altitude:
Date:
Notes:

Field number: AL 361
Collector: Dr. Andreas Laras
Species: Thelocactus bicolor
Locality: Nuevo Yucatan, Coahuila, México
Altitude:
Date:
Notes:

Field number: AL 366
Collector: Dr. Andreas Laras
Species: Thelocactus bicolor
Locality: Zona de Minas, Sierra de la Paila, Coahuila, México
Altitude:
Date:
Notes:

Field number: BB 2126.13
Collector: Brian Francis Bates
Species: Thelocactus bicolor v. flavidispinus
Locality: Marathon, Texas, USA
Altitude: 1206m
Date: 17/05/2016
Notes: same locality as LRM24

Field number: BB 2127.11
Collector: Brian Francis Bates
Species: Thelocactus bicolor v. flavidispinus
Locality: Marathon, Texas, USA
Altitude: 1290m
Date: 18/05/2016
Notes: same locality as LRM30

Field number: BB 2128.12
Collector: Brian Francis Bates
Species: Thelocactus bicolor v. flavidispinus
Locality: Marathon, Texas, USA
Altitude: 1209m
Date: 19/05/2016
Notes: same locality as CS861

Field number: BB 2129.10
Collector: Brian Francis Bates
Species: Thelocactus bicolor v. flavidispinus
Locality: Marathon, Texas, USA
Altitude: 1256m
Date: 19/05/2016
Notes: same locality as CH US29

Field number: BIG 71
Collector: Ignazio Blando
Species: Thelocactus bicolor
Locality: Route 57 km 65
Altitude:
Date: 2003
Notes:

Field number: BIG 77
Collector: Ignazio Blando
Species: Thelocactus bicolor
Locality: Charco Cercado South-East of Huizache
Altitude:
Date: 2003
Notes:

Field number: BIG 93
Collector: Ignazio Blando
Species: Thelocactus bicolor
Locality: Ramos Arizpe, Coahuila
Altitude:
Date: 2003
Notes:

Field number: BIG 94
Collector: Ignazio Blando
Species: Thelocactus bicolor
Locality: Cerro Bola, Coahuila
Altitude:
Date: 2003
Notes:

Field number: BIG 95
Collector: Ignazio Blando
Species: Thelocactus bicolor
Locality: Parras, Coahuila
Altitude:
Date: 2003
Notes:

Field number: CH 200
Collector: Jaromír Chvastek
Species: Thelocactus bicolor
Locality: Arteaga, Coahuila, Mexico
Altitude:
Date: 1992/3/21-/4/27
Notes:

Field number: CH 351
Collector: Jaromír Chvastek
Species: Thelocactus bicolor
Locality: Huizache, San Luis Potosí, Mexico
Altitude: 1400m
Date: 1994/10/23
Notes:

Field number: CH 486
Collector: Jaromír Chvastek
Species: Thelocactus bicolor
Locality: La Soledad e, Nuevo León, Mexico
Altitude: 1520m
Date: 1995/4/29
Notes:

Field number: CH 495
Collector: Jaromír Chvastek
Species: Thelocactus bicolor
Locality: Sandia Victoria, Nuevo León, Mexico
Altitude: 1635m
Date: 1995/4/29
Notes:

Field number: CH 510
Collector: Jaromír Chvastek
Species: Thelocactus bicolor
Locality: Higueras, Nuevo León, Mexico
Altitude:
Date: 1995/5/1
Notes:

Field number: CH 519
Collector: Jaromír Chvastek
Species: Thelocactus bicolor
Locality: Arteaga, Coahuila, Mexico
Altitude: 1635m
Date: 1995/5/2
Notes:

Field number: CH 527
Collector: Jaromír Chvastek
Species: Thelocactus bicolor
Locality: La Rosa, Coahuila, Mexico
Altitude: 1215m
Date: 1995/5/3
Notes:

Field number: CH 551
Collector: Jaromír Chvastek
Species: Thelocactus bicolor v. bolansis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date: 1995/5/4
Notes:

Field number: CH 559
Collector: Jaromír Chvastek
Species: Thelocactus bicolor
Locality: Route30 km 163, Coahuila, Mexico
Altitude:
Date: 1995/5/5
Notes:

Field number: CH 574
Collector: Jaromír Chvastek
Species: Thelocactus bicolor
Locality: Lerdo, Durango, Mexico
Altitude: 885m
Date: 1995/5/7
Notes:

Field number: CHA 164
Collector: Jan Chalupa
Species: Thelocactus bicolor ssp. uchwarzii
Locality: Gonzales, Tamaulipas, Mexico
Altitude:
Date:
Notes:

Field number: CS 88.7
Collector: Chris Sherrah
Species: Thelocactus bicolor
Locality: near Matehuala, San Luis Potosí, Mexico
Altitude: 2158m
Date: 30-May-07
Notes: = WAF

Field number: CS 90.2
Collector: Chris Sherrah
Species: Thelocactus bicolor
Locality: near Matehuala 2, San Luis Potosí, Mexico
Altitude: 1988m
Date: 01-Jun-07
Notes:

Field number: CS 95.1
Collector: Chris Sherrah
Species: Thelocactus bicolor
Locality: East of Parras 2, Coahuila, Mexico
Altitude: 1462m
Date: 03-Jun-07
Notes:

Field number: CS 96.2
Collector: Chris Sherrah
Species: Thelocactus bicolor
Locality: East of Parras, Coahuila, Mexico
Altitude: 1497m
Date: 03-Jun-07
Notes:

Field number: CS 97.1
Collector: Chris Sherrah
Species: Thelocactus bicolor
Locality: East of Parras 1, Coahuila, Mexico
Altitude: 1610m
Date: 03-Jun-07
Notes:

Field number: CS 99.1
Collector: Chris Sherrah
Species: Thelocactus bicolor
Locality: La Virgen, Coahuila, Mexico
Altitude: 1091m
Date: 04-Jun-07
Notes: yellow spines

Field number: CSD 187
Collector: Jaromír Chvastek, Roman Staník, Igor Dráb
Species: Thelocactus bicolor
Locality: Arteaga, Coahuila, Mexico
Altitude:
Date: 10/05/1997
Notes: = IDD195; ruby red spines

Field number: CSD 195
Collector: Jaromír Chvastek, Roman Staník, Igor Dráb
Species: Thelocactus bicolor
Locality: El Caracol, West of Saltillo, Coahuila, Mexico
Altitude:
Date: 10/05/1997
Notes: = IDD203

Field number: CSD 200
Collector: Jaromír Chvastek, Roman Staník, Igor Dráb
Species: Thelocactus bicolor
Locality: La Rosa, Coahuila, Mexico
Altitude:
Date: 10/05/1997
Notes: = IDD208

Field number: CSD 217B
Collector: Jaromír Chvastek, Roman Staník, Igor Dráb
Species: Thelocactus bicolor v. wagnerianus
Locality: Hipolito, Coahuila, Mexico
Altitude:
Date: 11/05/1997
Notes: = IDD226; yellow spines, no centrals

Field number: CSD 224
Collector: Jaromír Chvastek, Roman Staník, Igor Dráb
Species: Thelocactus bicolor v. wagnerianus
Locality: 23km before El Pilar, Coahuila, Mexico
Altitude:
Date: 12/05/1997
Notes: = IDD233

Field number: CSD 236
Collector: Jaromír Chvastek, Roman Staník, Igor Dráb
Species: Thelocactus bicolor
Locality: Viesca, Coahuila, Mexico
Altitude:
Date: 13/05/1997
Notes: = IDD249

Field number: CSD 241
Collector: Jaromír Chvastek, Roman Staník, Igor Dráb
Species: Thelocactus bicolor v. bolansis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date: 13/05/1997
Notes: = IDD255

Field number: CSD 260
Collector: Jaromír Chvastek, Roman Staník, Igor Dráb
Species: Thelocactus bicolor
Locality: 20km behind Gomez Palacio, Durango, Mexico
Altitude:
Date: 15/05/1997
Notes: = IDD275

Field number: CSD 269
Collector: Jaromír Chvastek, Roman Staník, Igor Dráb
Species: Thelocactus bicolor v. pottsii
Locality: Cuencamé, Durango, Mexico
Altitude:
Date: 15/05/1997
Notes: = IDD284

Field number: CZ 103
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Hipolito, Coahuila, Mexico
Altitude:
Date: 1987/12/15
Notes:

Field number: CZ 104
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Hipolito, Coahuila, Mexico
Altitude:
Date: 1987/12/15
Notes:

Field number: CZ 16
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Higueras, Nuevo León, Mexico
Altitude:
Date: 1987/12/8
Notes:

Field number: CZ 31
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Casa Blanca motorest, n side, Nuevo León, Mexico
Altitude:
Date: 1987/12/9
Notes:

Field number: CZ 35
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Casa Blanca motorest, n side, Nuevo León, Mexico
Altitude:
Date: 1987/12/9
Notes:

Field number: CZ 40
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Casa Blanca motorest, n side, Nuevo León, Mexico
Altitude:
Date: 1987/12/9
Notes:

Field number: CZ 41
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Casa Blanca motorest, n side, Nuevo León, Mexico
Altitude:
Date: 1987/12/9
Notes:

Field number: CZ 43
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Casa Blanca motorest, s side, Nuevo León, Mexico
Altitude:
Date: 1987/12/10
Notes:

Field number: CZ 49
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Casa Blanca motorest, s side, Nuevo León, Mexico
Altitude:
Date: 1987/12/10
Notes:

Field number: CZ 52
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Casa Blanca motorest, s side, Nuevo León, Mexico
Altitude:
Date: 1987/12/10
Notes:

Field number: CZ 57
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Casa Blanca motorest, s side, Nuevo León, Mexico
Altitude:
Date: 1987/12/10
Notes:

Field number: CZ 73
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Castaños, Coahuila, Mexico
Altitude:
Date: 1987/12/12
Notes:

Field number: CZ 83
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Arteaga, Coahuila, Mexico
Altitude:
Date: 1987/12/14
Notes:

Field number: CZ 91
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Arteaga, Coahuila, Mexico
Altitude:
Date: 1987/12/14
Notes:

Field number: CZ 92
Collector: Jaromír Chvastek, Jaroslav Žvak
Species: Thelocactus bicolor
Locality: Arteaga, Coahuila, Mexico
Altitude:
Date: 1987/12/14
Notes:

Field number: DAR 3
Collector: Amante Darmanin
Species: Thelocactus bicolor
Locality: Ramos Arispe, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: DAR 74
Collector: Amante Darmanin
Species: Thelocactus bicolor v. bolances
Locality: Chihuahua, Chihuahua, Mexico
Altitude:
Date:
Notes:

Field number: FH 64
Collector: Frantisek Hájek
Species: Thelocactus bicolor
Locality: Cerritos, San Luis Potosí, Mexico
Altitude:
Date:
Notes:

Field number: FH 77a
Collector: Frantisek Hájek
Species: Thelocactus bicolor
Locality: Huizache, San Luis Potosí, Mexico
Altitude:
Date:
Notes:

Field number: GL 750
Collector: Gary Loos
Species: Thelocactus bicolor v. schottii
Locality: Lajitas, Texas, USA
Altitude:
Date:
Notes:

Field number: GL 751
Collector: Gary Loos
Species: Thelocactus bicolor v. flavidispinus
Locality: Marathon, Texas, USA
Altitude:
Date:
Notes:

Field number: GL 752
Collector: Gary Loos
Species: Thelocactus bicolor
Locality: Rio Grande City, Texas, USA
Altitude:
Date:
Notes:

Field number: GL&DONEY 525
Collector: Charles (Charlie) Edward Glass, B. Doney
Species: Thelocactus bicolor
Locality: 7 miles from Viesca, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: GL&DONEY 538
Collector: Charles (Charlie) Edward Glass, B. Doney
Species: Thelocactus bicolor v. bolaensis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: GL&F 1618
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor v. flavidispinus
Locality: 3.5 miles South of Marathon, Texas, USA
Altitude:
Date:
Notes:

Field number: GL&F 1656
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality: 1km North of Cuesta La Muralla, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: GL&F 2155
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality: microwave station road, 30 miles North of Bermejillo, Durango, Mexico
Altitude:
Date:
Notes:

Field number: GL&F 2166
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality: along river South of Ciudad Lerdo, Durango, Mexico
Altitude:
Date:
Notes:

Field number: GL&F 2187
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor v. bolansis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: GL&F 2236
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality: flatter ground, lower down from 1 mile past Higueras, side road to hill just beyond border of Nuevo Leon, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: GL&F 2283
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality: 16 miles South of microwave station road, Palma China flats, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: GL&F 2304
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality: 9.5 miles East of Huizache, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: GL&F 2786
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor v. flavidispinus
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 2793
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor v. flavidispinus
Locality: Mexico
Altitude:
Date:
Notes:

Field number: GL&F 2825
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 2856
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 2861
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality: Tamaulipas, Tamaulipas, Mexico
Altitude:
Date:
Notes:

Field number: GL&F 2949
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 3034
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality: Sierra de la Paila, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: GL&F 3113
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 3326
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor v. bolansis
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 3528
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 3661
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor v. bolansis
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 3751
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor v. bolansis
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 3774
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 4018
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 4041
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 4117
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 4140
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality:
Altitude:
Date:
Notes:

Field number: GL&F 571
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor v. flavidispinus
Locality: on Highway 385, 4 miles South of Marathon, Texas, USA
Altitude:
Date:
Notes:

Field number: GL&F 581
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality: motel on hilltop, Roma, Texas, USA
Altitude:
Date:
Notes:

Field number: GL&F 691
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality: km 668, Highway 57, North of Matehuala, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: GL&F 697
Collector: Charles (Charlie) Edward Glass, Robert Alan (Bob) Foster (also see notes)
Species: Thelocactus bicolor
Locality: km 678.5, Highway 57, North of Matehuala, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: GM 106
Collector: Grzegorz Matuszewski
Species: Thelocactus bicolor
Locality: Buenavista
Altitude: 850m
Date:
Notes:

Field number: GM 127
Collector: Grzegorz Matuszewski
Species: Thelocactus bicolor
Locality: Camaleon
Altitude:
Date:
Notes:

Field number: GM 213
Collector: Grzegorz Matuszewski
Species: Thelocactus bicolor
Locality: El Huizache
Altitude: 1450m
Date:
Notes:

Field number: GM 238
Collector: Grzegorz Matuszewski
Species: Thelocactus bicolor
Locality: El Hundido
Altitude: 770m
Date:
Notes:

Field number: GM 410
Collector: Grzegorz Matuszewski
Species: Thelocactus bicolor
Locality: Vanegas
Altitude: 1700m
Date:
Notes: very thick central spines

Field number: GM 73
Collector: Grzegorz Matuszewski
Species: Thelocactus bicolor
Locality: Plan de Ayala
Altitude:
Date:
Notes:

Field number: GM 80
Collector: Grzegorz Matuszewski
Species: Thelocactus bicolor
Locality: Hipolito
Altitude: 1450m
Date:
Notes:

Field number: GM 89A
Collector: Grzegorz Matuszewski
Species: Thelocactus bicolor v. tricolor
Locality: El Pilar
Altitude: 1500m
Date:
Notes:

Field number: GM 92
Collector: Grzegorz Matuszewski
Species: Thelocactus bicolor
Locality: El Cuatroalbo
Altitude: 1500m
Date:
Notes:

Field number: GOMEZ 445
Collector: Carlos Gómez Hinostrosa
Species: Thelocactus bicolor
Locality: Mier y Noriega, Nuevo Leon, Mexico
Altitude:
Date:
Notes:

Field number: GOMEZ 445
Collector: Carlos Gómez Hinostrosa
Species: Thelocactus bicolor
Locality: Mier y Noriega, Nuevo Leon, Mexico
Altitude:
Date:
Notes:

Field number: GOMEZ-H 445
Collector: Carlos Gómez Hinostrosa
Species: Thelocactus bicolor
Locality: Mier y Noriega, Nuevo Leon, Mexico
Altitude:
Date:
Notes:

Field number: GOMEZ-H 445
Collector: Carlos Gómez Hinostrosa
Species: Thelocactus bicolor
Locality: Mier y Noriega, Nuevo Leon, Mexico
Altitude:
Date:
Notes:

Field number: HK 2170
Collector: Horst Kuenzler
Species: Thelocactus bicolor
Locality: Chihuahua, Mexico
Altitude:
Date:
Notes:

Field number: HK 361
Collector: Horst Kuenzler
Species: Thelocactus bicolor v.
Locality: Cuatrocienegas, Coahuila, Mexico
Altitude:
Date:
Notes: short spines

Field number: HT 1000
Collector: P. Hallet (plants collected by Alfred Bernhard Lau)
Species: Thelocactus bicolor v. bolansis
Locality: Viesca, Coahuila, Mexico
Altitude: 1000m
Date: 3/8/1974
Notes: together with Astrophytum senile

Field number: HT 1456
Collector: P. Hallet (plants collected by Alfred Bernhard Lau)
Species: Thelocactus bicolor v. bolansis
Locality: Sierra Bola, Coahuila, Mexico
Altitude: 1200m
Date: 3/7/1983
Notes: together with Astrophytum senile, Echinocereus conglomeratus

Field number: HT 708
Collector: P. Hallet (plants collected by Alfred Bernhard Lau)
Species: Thelocactus bicolor v. tricolor
Locality: Ceballos, Durango, Mexico
Altitude: 1600m
Date: 2/6/1974
Notes: together with L707, L709, L710, Coryphantha delaetiana, Echinocereus conglomeratus

Field number: HT 794
Collector: P. Hallet (plants collected by Alfred Bernhard Lau)
Species: Thelocactus bicolor
Locality: Nazas, Durango, Mexico
Altitude: 1800m
Date: 10/5/1975
Notes: together with L971, L972, L973, Mammillaria pottsii, Leuchtenbergia principis, Echinocereus conglomeratus

Field number: HT 794a
Collector: P. Hallet (plants collected by Alfred Bernhard Lau)
Species: Thelocactus bicolor
Locality: Ascension, Nuevo Leon, Mexico
Altitude: 2400m
Date: 12/5/1975
Notes: together with Thelocactus conothelos v. argenteus, Gymnocactus beguinii

Field number: IDD 09/24
Collector: Igor D. Dráb
Species: Thelocactus bicolor v. flavidispinus
Locality: Just before Marathon, Big Bend to Marathon, Texas, USA
Altitude:
Date: 30/06/2009
Notes: = IDD1229; with Echinocactus horizonthalonius, Coryphantha echinus

Field number: IDD 1004
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Behind Santa Barbara towards San Luis de Cordero, Durango, Mexico
Altitude:
Date: 15/10/2007
Notes: = IDD51/03

Field number: IDD 1040
Collector: Igor D. Dráb
Species: Thelocactus bicolor v. bolaensis
Locality: Classical locality behind restaurant ruins, to the right, behind the range, Cerro Bola, Coahuila, Mexico
Altitude:
Date: 18/10/2007
Notes: = IDD86/03

Field number: IDD 1042
Collector: Igor D. Dráb
Species: Thelocactus bicolor v. bolaensis
Locality: 163km East of Cerro Bola, Coahuila, Mexico
Altitude:
Date: 18/10/2007
Notes: = IDD88/03

Field number: IDD 1072
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: To the left 1km, low hills, behind gravel quarry, El Hundido, Coahuila, Mexico
Altitude:
Date: 21/10/2007
Notes: = IDD117/03; with Mammillaria pottsii, Grusonia bradtiana, blue Agave sp.

Field number: IDD 1090
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Behind Cedral, behind Estacion Vanegas, San Luis Potosí, Mexico
Altitude:
Date: 23/10/2007
Notes: = IDD135/03; with Neolloydia conoidea, Mammillaria formosa

Field number: IDD 1141
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Below the hill with the church, Pedriceňa to Nazas, Durango, Mexico
Altitude:
Date: 12/11/2008
Notes: = IDD6A/08; with Mammillaria grusonii, Echinocereus stramineus

Field number: IDD 1143
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: To the right, Paso Nacional to Nazas, Durango, Mexico
Altitude:
Date: 12/11/2008
Notes: = IDD8/08; with Gladulicactus uncinatus

Field number: IDD 1155
Collector: Igor D. Dráb
Species: Thelocactus bicolor v. bolaensis
Locality: Next to ruins to the right of the road, Cerro Bola, Coahuila, Mexico
Altitude:
Date: 15/11/2008
Notes: = IDD20/08; with Mammillaria chica. M. grusonii, Opuntia imbricata, Epithelantha micromeris v. gregii, Hamatocactus hamatacanthus, Coryphantha valida

Field number: IDD 117/03
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: To the left 1km, low hills, behind gravel quarry, El Hundido, Coahuila, Mexico
Altitude:
Date: 21/10/2007
Notes: = IDD1072; with Mammillaria pottsii, Grusonia bradtiana, blue Agave sp.

Field number: IDD 1229
Collector: Igor D. Dráb
Species: Thelocactus bicolor v. flavidispinus
Locality: Just before Marathon, Big Bend to Marathon, Texas, USA
Altitude:
Date: 30/06/2009
Notes: = IDD09/24; with Echinocactus horizonthalonius, Coryphantha echinus

Field number: IDD 135/03
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Behind Cedral, behind Estacion Vanegas, San Luis Potosí, Mexico
Altitude:
Date: 23/10/2007
Notes: = IDD1090; with Neolloydia conoidea, Mammillaria formosa

Field number: IDD 195
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Arteaga, Coahuila, Mexico
Altitude:
Date: 10/05/1997
Notes: = CSD187; ruby red spines

Field number: IDD 20/08
Collector: Igor D. Dráb
Species: Thelocactus bicolor v. bolaensis
Locality: Next to ruins to the right of the road, Cerro Bola, Coahuila, Mexico
Altitude:
Date: 15/11/2008
Notes: = IDD1155; with Mammillaria chica. M. grusonii, Opuntia imbricata, Epithelantha micromeris v. gregii, Hamatocactus hamatacanthus, Coryphantha valida

Field number: IDD 203
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: El Caracol, West of Saltillo, Coahuila, Mexico
Altitude:
Date: 10/05/1997
Notes: = CSD195

Field number: IDD 208
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: La Rosa, Coahuila, Mexico
Altitude:
Date: 10/05/1997
Notes: = CSD200

Field number: IDD 226
Collector: Igor D. Dráb
Species: Thelocactus bicolor v. wagnerianus
Locality: Hipolito, Coahuila, Mexico
Altitude:
Date: 11/05/1997
Notes: = CSD217B; yellow spines, no centrals

Field number: IDD 233
Collector: Igor D. Dráb
Species: Thelocactus bicolor v. wagnerianus
Locality: 23km before El Pilar, Coahuila, Mexico
Altitude:
Date: 12/05/1997
Notes: = CSD224

Field number: IDD 249
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Viesca, Coahuila, Mexico
Altitude:
Date: 13/05/1997
Notes: = CSD236

Field number: IDD 255
Collector: Igor D. Dráb
Species: Thelocactus bicolor v. bolansis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date: 13/05/1997
Notes: = CSD241

Field number: IDD 275
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: 20km behind Gomez Palacio, Durango, Mexico
Altitude:
Date: 15/05/1997
Notes: = CSD260

Field number: IDD 284
Collector: Igor D. Dráb
Species: Thelocactus bicolor v. pottsii
Locality: Cuencamé, Durango, Mexico
Altitude:
Date: 15/05/1997
Notes: = CSD269

Field number: IDD 34/03
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Terrace behind Peňon Blanco towards Nazas, Durango, Mexico
Altitude:
Date: 14/10/2007
Notes: = IDD983

Field number: IDD 35/99
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: To the left, in the plain, junction Entronque Huizache, towards Santo Domingo, San Luis Potosí, Mexico
Altitude:
Date: 22/04/2003
Notes: = IDD572; with Yucca sp.

Field number: IDD 360
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Entronque Huizache, San Luis Potosí, Mexico
Altitude:
Date: 22/10/2000
Notes:

Field number: IDD 390
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Km 162, towards Cuatro Cienegas, Coahuila, Mexico
Altitude:
Date: 28/10/2000
Notes:

Field number: IDD 51/03
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Behind Santa Barbara towards San Luis de Cordero, Durango, Mexico
Altitude:
Date: 15/10/2007
Notes: = IDD1004

Field number: IDD 572
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: To the left, in the plain, junction Entronque Huizache, towards Santo Domingo, San Luis Potosí, Mexico
Altitude:
Date: 22/04/2003
Notes: = IDD35/99; with Yucca sp.

Field number: IDD 600
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Towards Torreón, km 34, Plan de Ayala, Coahuila, Mexico
Altitude:
Date: 26/04/2003
Notes: = IDD61/99

Field number: IDD 61/99
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Towards Torreón, km 34, Plan de Ayala, Coahuila, Mexico
Altitude:
Date: 26/04/2003
Notes: = IDD600

Field number: IDD 623
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Below Santa Teresa, km 125,9 Route 57, Coahuila, Mexico
Altitude:
Date: 28/04/2003
Notes: = IDD84/99

Field number: IDD 629
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Km 72.5 towards Saltillo, Campamento San Lazaro, Coahuila, Mexico
Altitude:
Date: 28/04/2003
Notes: = IDD89/99; km 72, 5 towards Saltillo

Field number: IDD 6A/08
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Below the hill with the church, Pedriceňa to Nazas, Durango, Mexico
Altitude:
Date: 12/11/2008
Notes: = IDD1141; with Mammillaria grusonii, Echinocereus stramineus

Field number: IDD 8/08
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: To the right, Paso Nacional to Nazas, Durango, Mexico
Altitude:
Date: 12/11/2008
Notes: = IDD1143; with Gladulicactus uncinatus

Field number: IDD 84/99
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Below Santa Teresa, km 125,9 Route 57, Coahuila, Mexico
Altitude:
Date: 28/04/2003
Notes: = IDD623

Field number: IDD 86/03
Collector: Igor D. Dráb
Species: Thelocactus bicolor v. bolaensis
Locality: Classical locality behind restaurant ruins, to the right, behind the range, Cerro Bola, Coahuila, Mexico
Altitude:
Date: 18/10/2007
Notes: = IDD1040

Field number: IDD 88/03
Collector: Igor D. Dráb
Species: Thelocactus bicolor v. bolaensis
Locality: 163km East of Cerro Bola, Coahuila, Mexico
Altitude:
Date: 18/10/2007
Notes: = IDD1042

Field number: IDD 89/99
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Km 72.5 towards Saltillo, Campamento San Lazaro, Coahuila, Mexico
Altitude:
Date: 28/04/2003
Notes: = IDD629; km 72, 5 towards Saltillo

Field number: IDD 983
Collector: Igor D. Dráb
Species: Thelocactus bicolor
Locality: Terrace behind Peňon Blanco towards Nazas, Durango, Mexico
Altitude:
Date: 14/10/2007
Notes: = id034/03

Field number: JM 111
Collector: Josef Mikuláš
Species: Thelocactus bicolor v. schottii
Locality: Big Band Texas, USA
Altitude:
Date:
Notes:

Field number: JM 134
Collector: Josef Mikuláš
Species: Thelocactus bicolor v. flavidispinus
Locality: Terlingua, Texas, USA
Altitude:
Date:
Notes:

Field number: JO 467
Collector: Josef Odehnal
Species: Thelocactus bicolor v. schottii
Locality: Roma, R 83, Texas, USA
Altitude:
Date: 1998
Notes:

Field number: KMR 97
Collector: Miroslav Kupčák
Species: Thelocactus bicolor ssp. bolaensis
Locality: Cerro Bola, North of Viesca, Coahuila, Mexico
Altitude:
Date: 2004
Notes:

Field number: KPP 1710
Collector: Karel Pavel Pavlíček
Species: Thelocactus bicolor
Locality: General Cepeda, Coahuila, Mexico
Altitude:
Date: 01/01/2012
Notes:

Field number: KPP 1736
Collector: Karel Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Meyran desert, Coahuila, Mexico
Altitude:
Date: 01/10/2012
Notes:

Field number: KPP 1737
Collector: Karel Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Coahuila, Mexico
Altitude:
Date: 01/10/2012
Notes: South of Slais's

Field number: KPP 1738
Collector: Karel Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Sierra Zavaleta, Coahuila, Mexico
Altitude:
Date: 01/10/2012
Notes:

Field number: KPP 1881
Collector: Karel Pavel Pavlíček
Species: Thelocactus bicolor v. pottsii
Locality: Nazas, under the bridge, Durango, Mexico
Altitude:
Date: 01/10/2014
Notes:

Field number: KPP 1915
Collector: Karel Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Huizache, San Luis Potosi, Mexico
Altitude:
Date: 2015?
Notes:

Field number: KS 41
Collector: Libor Kunte, Jaroslav Šnicer
Species: Thelocactus bicolor
Locality: Higueras, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: KSS 133
Collector: Libor Kunte, Rudolf Slaba, Simerda
Species: Thelocactus bicolor
Locality: Huizache, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: KSS 65
Collector: Libor Kunte, Rudolf Slaba, Simerda
Species: Thelocactus bicolor
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: L 1000
Collector: Alfred Bernhard Lau
Species: Thelocactus bicolor v. bolansis
Locality: Viesca, Coahuila, Mexico
Altitude: 1000m
Date: 3/8/1974
Notes: together with Astrophytum senile

Field number: L 1456
Collector: Alfred Bernhard Lau
Species: Thelocactus bicolor v. bolansis
Locality: Sierra Bola, Coahuila, Mexico
Altitude: 1200m
Date: 3/7/1983
Notes: together with Astrophytum senile, Echinocereus conglomeratus

Field number: L 708
Collector: Alfred Bernhard Lau
Species: Thelocactus bicolor v. tricolor
Locality: Ceballos, Durango, Mexico
Altitude: 1600m
Date: 2/6/1974
Notes: together with L707, L709, L710, Coryphantha delaetiana, Echinocereus conglomeratus

Field number: L 794
Collector: Alfred Bernhard Lau
Species: Thelocactus bicolor
Locality: Nazas, Durango, Mexico
Altitude: 1800m
Date: 10/5/1975
Notes: together with L971, L972, L973, Mammillaria pottsii, Leuchtenbergia principis, Echinocereus conglomeratus

Field number: L 794a
Collector: Alfred Bernhard Lau
Species: Thelocactus bicolor
Locality: Ascension, Nuevo Leon, Mexico
Altitude: 2400m
Date: 12/5/1975
Notes: together with Thelocactus conothelos v. argenteus, Gymnocactus beguinii

Field number: LAU 1000
Collector: Alfred Bernhard Lau
Species: Thelocactus bicolor v. bolansis
Locality: Viesca, Coahuila, Mexico
Altitude: 1000m
Date: 3/8/1974
Notes: together with Astrophytum senile

Field number: LAU 1456
Collector: Alfred Bernhard Lau
Species: Thelocactus bicolor v. bolansis
Locality: Sierra Bola, Coahuila, Mexico
Altitude: 1200m
Date: 3/7/1983
Notes: together with Astrophytum senile, Echinocereus conglomeratus

Field number: LAU 708
Collector: Alfred Bernhard Lau
Species: Thelocactus bicolor v. tricolor
Locality: Ceballos, Durango, Mexico
Altitude: 1600m
Date: 2/6/1974
Notes: together with L707, L709, L710, Coryphantha delaetiana, Echinocereus conglomeratus

Field number: LAU 794
Collector: Alfred Bernhard Lau
Species: Thelocactus bicolor
Locality: Nazas, Durango, Mexico
Altitude: 1800m
Date: 10/5/1975
Notes: together with L971, L972, L973, Mammillaria pottsii, Leuchtenbergia principis, Echinocereus conglomeratus

Field number: LAU 794a
Collector: Alfred Bernhard Lau
Species: Thelocactus bicolor
Locality: Ascension, Nuevo Leon, Mexico
Altitude: 2400m
Date: 12/5/1975
Notes: together with Thelocactus conothelos v. argenteus, Gymnocactus beguinii

Field number: LB 145
Collector: C. A. Ludwig Bercht
Species: Thelocactus bicolor v. flavidispinus
Locality: Brewster County, Texas, USA
Altitude:
Date: 1989
Notes:

Field number: LB 184
Collector: C. A. Ludwig Bercht
Species: Thelocactus bicolor v. schottii
Locality: Presidio County, Texas, USA
Altitude:
Date: 1989
Notes:

Field number: LH 136
Collector: Ladislav Horáček
Species: Thelocactus bicolor
Locality: Huizache, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: LH 327
Collector: Ladislav Horáček
Species: Thelocactus bicolor
Locality: Huizache, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: LH 474
Collector: Ladislav Horáček
Species: Thelocactus bicolor
Locality: Parras, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: LH 69
Collector: Ladislav Horáček
Species: Thelocactus bicolor
Locality: Arteaga, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: LH 79
Collector: Ladislav Horáček
Species: Thelocactus bicolor
Locality: Huasteca Canyon, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: LH 87
Collector: Ladislav Horáček
Species: Thelocactus bicolor
Locality: Huasteca Canyon, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: LM 230
Collector: Libor Mejstřík
Species: Thelocactus bicolor ssp. bolaensis
Locality: 6km from El Amp.Mench, Cuahuila, Mexico
Altitude:
Date:
Notes:

Field number: LM 237
Collector: Libor Mejstřík
Species: Thelocactus bicolor ssp. bolaensis
Locality: El Cuatro de Marzo, Cuahuila, Mexico
Altitude:
Date:
Notes:

Field number: LM 238
Collector: Libor Mejstřík
Species: Thelocactus bicolor ssp. bolaensis
Locality: Emiliano Zapata, Cuahuila, Mexico
Altitude:
Date:
Notes:

Field number: LM 261
Collector: Libor Mejstřík
Species: Thelocactus bicolor
Locality: 5km from Rio Aguanaval, Cuahuila, Mexico
Altitude:
Date:
Notes:

Field number: LM 58
Collector: Libor Mejstřík
Species: Thelocactus bicolor ssp. bolaensis
Locality: Emiliano Zapata to Cerro B., Cuahuila, Mexico
Altitude:
Date:
Notes:

Field number: LRM 111
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor
Locality: Ramos Arispe, Coahuila, Mexico
Altitude:
Date: 1999
Notes:

Field number: LRM 200
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor v. bolansis
Locality: Parras, Coahuila, Mexico
Altitude:
Date: 2000
Notes:

Field number: LRM 220
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor v. nov.
Locality: Nuevo Yucatan, Coahuila, Mexico
Altitude:
Date: 2000
Notes:

Field number: LRM 222
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor v. bolansis
Locality: Sierra Paila, Zona de Minas, Coahuila, Mexico
Altitude:
Date: 2000
Notes:

Field number: LRM 24
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor v. flavidispinus
Locality: Marathon, Texas, USA
Altitude:
Date: 1999
Notes:

Field number: LRM 281
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor
Locality: Huizache, San Luis Potosí, Mexico
Altitude:
Date: 2001
Notes:

Field number: LRM 293
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor v. schwarzii
Locality: Fortin Agrero, Tamaulipas, Mexico
Altitude:
Date: 2001
Notes:

Field number: LRM 4
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor v. schottii
Locality: Lajitas, Texas, USA
Altitude:
Date: 1999
Notes:

Field number: LRM 42
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor
Locality: Parras, Coahuila, Mexico
Altitude:
Date: 1999
Notes:

Field number: LRM 476
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor
Locality: Bermejillo, Durango, Mexico
Altitude:
Date: 2002
Notes:

Field number: LRM 519
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor
Locality: General Cepeda, Coahuila, Mexico
Altitude:
Date: 2002
Notes:

Field number: LRM 60
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor
Locality: Higueras, Coahuila, Mexico
Altitude:
Date: 1999
Notes:

Field number: LRM 93
Collector: Living Rocks of Mexico. Now Geoff Bailey, John Miller, previously also David (Dave) Rushforth.
Species: Thelocactus bicolor
Locality: Huizache Junction, San Luis Potosí, Mexico
Altitude:
Date: 1999
Notes:

Field number: LZ 404
Collector: Eberhard Lutz
Species: Thelocactus bicolor v. schottii
Locality: Big Bend National Park, Texas, USA
Altitude: 550-1400m
Date: 12/11/1994
Notes:

Field number: LZ 79
Collector: Eberhard Lutz
Species: Thelocactus bicolor v. schottii
Locality: Marathon, Texas, USA
Altitude:
Date: 13/7/1987
Notes:

Field number: MK 123.398
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: West of General Cepeda, Coahuila, Mexico
Altitude:
Date:
Notes: coarse spination

Field number: MK 124.400
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: West of General Cepeda, Coahuila, Mexico
Altitude:
Date:
Notes: coarse spination

Field number: MK 133.419
Collector: Miloš Kaplan
Species: Thelocactus bicolor v. commodus
Locality: Montemorelos, Nuevo Leon, Mexico
Altitude:
Date:
Notes: strange spination

Field number: MK 20.48
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: North of Matehuala, San Luis Potosi, Mexico
Altitude:
Date:
Notes: stout long spines

Field number: MK 22.56
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: Arteaga, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MK 24.63
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: South of Parras, Coahuila, Mexico
Altitude:
Date:
Notes: ?bolanis?

Field number: MK 25.67
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date:
Notes: ?bolanis?

Field number: MK 26.78
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: Villa Real, Coahuila, Mexico
Altitude:
Date:
Notes: ?bolanis?

Field number: MK 27.86
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: Viesca, Coahuila, Mexico
Altitude:
Date:
Notes: ?bolanis?

Field number: MK 28.98
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: South of Cuatrocienegas, Coahuila, Mexico
Altitude:
Date:
Notes: ?bolanis?

Field number: MK 51.319
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: Eltronque Huizache, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: MK 67.204
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: direction to Nazas, Durango, Mexico
Altitude:
Date:
Notes: ?bolanis?

Field number: MK 69.210
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: South of Ciudad Lerdo, Durango, Mexico
Altitude:
Date:
Notes:

Field number: MK 70.212
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: Matamoros, Coahuila, Mexico
Altitude:
Date:
Notes: red spines, very odd

Field number: MK 74.228
Collector: Miloš Kaplan
Species: Thelocactus bicolor
Locality: El Chiflon, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MMR 117
Collector: Milan Majer
Species: Thelocactus bicolor
Locality: Nuevo Yucatan, Coahuila, Mexico
Altitude:
Date: 2003
Notes:

Field number: MMR 118
Collector: Milan Majer
Species: Thelocactus bicolor
Locality: El Oso, Coahuila, Mexico
Altitude:
Date:
Notes: dense red spines

Field number: MMR 120
Collector: Milan Majer
Species: Thelocactus bicolor ssp. bolaensis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MMR 121
Collector: Milan Majer
Species: Thelocactus bicolor v. pottsii
Locality: San Fermin, Durango, Mexico
Altitude:
Date:
Notes:

Field number: MMR 160
Collector: Milan Majer
Species: Thelocactus bicolor
Locality: El Hundido, Coahuila, Mexico
Altitude:
Date:
Notes: dense spines

Field number: MMR 184
Collector: Milan Majer
Species: Thelocactus bicolor
Locality: Las Margaritas, Nuevo León, Mexico
Altitude:
Date: 2003
Notes:

Field number: MMR 185
Collector: Milan Majer
Species: Thelocactus bicolor
Locality: Guirache, Coahuila, Mexico
Altitude:
Date: 2003
Notes:

Field number: MMR 186
Collector: Milan Majer
Species: Thelocactus bicolor
Locality: Anhelo sw, Coahuila, Mexico
Altitude:
Date: 2003
Notes:

Field number: MMR 202
Collector: Milan Majer
Species: Thelocactus bicolor
Locality: Cd. Lerdo, Durango, Mexico
Altitude:
Date:
Notes: flat central spine

Field number: MMR 216
Collector: Milan Majer
Species: Thelocactus bicolor
Locality: Estanque de Menchaca, Coahuila, Mexico
Altitude:
Date:
Notes: dense spines

Field number: MZ 101
Collector: Milan Zachar
Species: Thelocactus bicolor v. bolansis
Locality: El Pilar, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MZ 116
Collector: Milan Zachar
Species: Thelocactus bicolor v. bolansis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MZ 1185
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Sombreretito, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MZ 1264
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Nuevo Yucatan, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MZ 1270
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Cerro Blanco, Durango, Mexico
Altitude:
Date:
Notes:

Field number: MZ 135
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Guadalcazar, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: MZ 1364
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Stop I, Mapimi Durango, Mexico
Altitude:
Date:
Notes:

Field number: MZ 1367
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Conejos, Durango, Mexico
Altitude:
Date:
Notes:

Field number: MZ 1452
Collector: Milan Zachar
Species: Thelocactus bicolor ssp. lausseri
Locality: Sierra de Ovejas, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MZ 1463
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: San Pablo, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: MZ 168
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Huizache II, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: MZ 21
Collector: Milan Zachar
Species: Thelocactus bicolor v. bolansis
Locality: La Cuchilla, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MZ 24
Collector: Milan Zachar
Species: Thelocactus bicolor v. bolansis
Locality: Viesca, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MZ 253
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Sierra de la Paila III, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MZ 304
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: La Peregrina, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: MZ 326
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Cadereyta, Queretaro, Mexico
Altitude:
Date:
Notes:

Field number: MZ 378
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Monterrey, Nuevo Leon, Mexico
Altitude:
Date:
Notes:

Field number: MZ 452
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Huizache, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: MZ 792
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Nazas, Durango, Mexico
Altitude:
Date:
Notes:

Field number: MZ 804
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: Sierra de Parras, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MZ 805
Collector: Milan Zachar
Species: Thelocactus bicolor v. schwarzii
Locality: Estancia Calles, Tamaulipas, Mexico
Altitude:
Date:
Notes:

Field number: MZ 869
Collector: Milan Zachar
Species: Thelocactus bicolor fma. commodus
Locality: Montemorelos, Tamaulipas, Mexico
Altitude:
Date:
Notes:

Field number: MZ 909
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: El Dorado, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: MZ 911
Collector: Milan Zachar
Species: Thelocactus bicolor
Locality: El Amparo, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PAN 194
Collector: Paolo Panarotto
Species: Thelocactus bicolor
Locality: El Coyote, San Luis Potosí, Mexico
Altitude: 1400m
Date:
Notes:

Field number: PAN 194B
Collector: Paolo Panarotto
Species: Thelocactus bicolor
Locality: Huizache, San Luis Potosí, Mexico
Altitude:
Date:
Notes:

Field number: PAN 265
Collector: Paolo Panarotto
Species: Thelocactus bicolor
Locality: Ascension, Nuevo León, Mexico
Altitude:
Date:
Notes:

Field number: PAN 343
Collector: Paolo Panarotto
Species: Thelocactus bicolor
Locality: Galeana, Nuevo León, Mexico
Altitude:
Date:
Notes:

Field number: PAR 179
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: General Jesus Augustin Castro, Durango, Mexico
Altitude: 1880m
Date:
Notes: With Coryphantha valida, Echinocactus horizonthalonius, Echinomastus unguispinus, Echinocereus pectinatus

Field number: PAR 184
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: Yerbanis to Tezustle road, Durango, Mexico
Altitude: 1965m
Date:
Notes: With Echinocactus horizonthalonius, Echinomastus unguispinus, Echinocereus pectinatus, Coryphantha sp.

Field number: PAR 215
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: Parritas, Bolson de Mapimi, Coahuila, Mexico
Altitude: 1135m
Date:
Notes: With Coryphantha sp,, Echinocactus horizonthalonius, Epithelantha micromeris

Field number: PAR 216
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: Parritas, Bolson de Mapimi, Coahuila, Mexico
Altitude: 1135m
Date:
Notes: With Echinocactus horizonthalonius, Thelocactus bicolor, Epithelantha micromeris

Field number: PAR 223
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor fma. robustus
Locality: Parritas to Nuevo Delicias road, Bolson de Mapimi, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PAR 226
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: Nuevo Delicias, Bolson de Mapimi, Coahuila, Mexico
Altitude: 845m
Date:
Notes: With Homalocephala texensis, Coryphantha runyonii, Coryphantha scherii, Echinocereus pectinatus

Field number: PAR 233
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: San Vincente, Coahuila, Mexico
Altitude: 710m
Date:
Notes: With Escobaria duncanii, Astrophytum crassispinum, Glandulicactus uncinatus, Echinocereus pectinatus, Ancistrocactus scherii, Thelocactus bicolor

Field number: PAR 234
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: Bohemia, Coahuila, Mexico
Altitude: 719m
Date:
Notes: With Thelocactus bicolor, Coryphantha runyonii, Coryphantha pseudoechinus, Epithelantha micromeris, Ferocactus hamatacanthus

Field number: PAR 247
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: General Francisco Coss, Coahuila, Mexico
Altitude: 960m
Date:
Notes: With Thelocactus bicolor, Epithelantha micromeris, Echinocactus horizonthalonius, Coryphantha pseudoechinus

Field number: PAR 254
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor v. wagnerianus
Locality: El Pilar, Coahuila, Mexico
Altitude: 1197m
Date:
Notes: With Thelocactus bicolor v. wagnerianus, Coryphantha borwigii, Coryphantha gladispina, Epithelantha micromeris, Echinocactus horizonthalonius, Astrophytum capricorne v. maior

Field number: PAR 261
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: Juan Perez, Coahuila, Mexico
Altitude: 1513m
Date:
Notes: With Lophophora williamsii, Epithelantha micromeris, Escobaria duncanii, Echinocereus pectinatus, Thelocactus bicolor

Field number: PAR 265
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: Estancia Menchaca, Coahuila, Mexico
Altitude: 1191m
Date:
Notes: With Coryphantha borwigii fma. nov., Thelocactus bicolor, Echinocactus horizonthalonius, Epithelantha micromeris

Field number: PAR 301
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: La Grancha, Durango, Mexico
Altitude:
Date: 19/03/2006
Notes:

Field number: PAR 305
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: Simon Melonez, Sierra San Pedro, Durango, Mexico
Altitude:
Date: 20/03/2006
Notes: robust

Field number: PAR 311
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: Pedro Celestino Negrete, Sierra San Pedro, Durango, Mexico
Altitude:
Date: 20/03/2006
Notes:

Field number: PAR 324
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: La Pamilla, Zacatecas, Mexico
Altitude:
Date: 23/03/2006
Notes:

Field number: PAR 33
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: La Soledad, Nuevo León, Mexico
Altitude:
Date:
Notes:

Field number: PAR 335
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: Quintanella, North of Saltillo, Coahuila, Mexico
Altitude:
Date: 24/03/2006
Notes:

Field number: PAR 339
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: Ejido Nuevo Yucatan, Sierra de La Paila, Coahuila, Mexico
Altitude:
Date: 25/03/2006
Notes:

Field number: PAR 49
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor
Locality: Cuatro Milpas, San Luis Potosí, Mexico
Altitude:
Date:
Notes:

Field number: PAR 66
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor fma.
Locality: Caopas, Zacatecas, Mexico
Altitude:
Date:
Notes:

Field number: PAR 79
Collector: Pavlosek Rostislav
Species: Thelocactus bicolor v. bolaensis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PC 69
Collector: Petr Česal
Species: Thelocactus bicolor
Locality: Bases between hills, bushes, Saltillo, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PC 78
Collector: Petr Česal
Species: Thelocactus bicolor
Locality: Flats, limestone gravel, bushes, El Hundido, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PC 92
Collector: Petr Česal
Species: Thelocactus bicolor
Locality: La Gloria, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PD 121
Collector: Pavel Duchek
Species: Thelocactus bicolor ssp. heterochromus
Locality: Za Ignacio Zaragoza, Durango, Mexico
Altitude: 1793m
Date:
Notes:

Field number: PD 122
Collector: Pavel Duchek
Species: Thelocactus bicolor ssp. heterochromus
Locality: San Juan del Rio, Durango, Mexico
Altitude:
Date:
Notes:

Field number: PD 123
Collector: Pavel Duchek
Species: Thelocactus bicolor ssp. heterochromus
Locality: Potrero de Campana, Durango, Mexico
Altitude:
Date:
Notes:

Field number: PD 124
Collector: Pavel Duchek
Species: Thelocactus bicolor ssp. heterochromus
Locality: Baňon, Zacatecas, Mexico
Altitude:
Date:
Notes:

Field number: PD 125
Collector: Pavel Duchek
Species: Thelocactus bicolor ssp. heterochromus
Locality: San Francisko de Asis, Durango, Mexico
Altitude: 1445m
Date:
Notes:

Field number: PD 126
Collector: Pavel Duchek
Species: Thelocactus bicolor ssp. bolaensis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PD 127
Collector: Pavel Duchek
Species: Thelocactus bicolor ssp. heterochromus
Locality: El Peňasko, Durango, Mexico
Altitude: 1700m
Date:
Notes:

Field number: PD 128
Collector: Pavel Duchek
Species: Thelocactus bicolor ssp. heterochromus
Locality: El Salitre, Durango, Mexico
Altitude:
Date:
Notes:

Field number: PD 134
Collector: Pavel Duchek
Species: Thelocactus bicolor ssp. heterochromus
Locality: Ignacio Zaragoza, Durango, Mexico
Altitude:
Date:
Notes:

Field number: PD 14
Collector: Pavel Duchek
Species: Thelocactus bicolor ssp. heterochromus
Locality: Arroyo de Coneto, Durango, Mexico
Altitude: 1700m
Date:
Notes:

Field number: PD 150
Collector: Pavel Duchek
Species: Thelocactus bicolor
Locality: Rancho La Meza), Chihuahua, Mexico
Altitude:
Date:
Notes:

Field number: PD 17
Collector: Pavel Duchek
Species: Thelocactus bicolor ssp. heterochromus
Locality: El Casco, Durango, Mexico
Altitude:
Date:
Notes:

Field number: PD 48
Collector: Pavel Duchek
Species: Thelocactus bicolor
Locality: El Cenzontle, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PD 57
Collector: Pavel Duchek
Species: Thelocactus bicolor
Locality: Nuevo Yucatan, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PD 64
Collector: Pavel Duchek
Species: Thelocactus bicolor
Locality: Presa de Guadalupe, Zacatecas, Mexico
Altitude:
Date:
Notes:

Field number: PD 88
Collector: Pavel Duchek
Species: Thelocactus bicolor
Locality: San Jerónimo, Zacatecas, Mexico
Altitude:
Date:
Notes:

Field number: PH 108.1
Collector: Paul Hoxey
Species: Thelocactus bicolor
Locality: Entronque El Huizache, San Luis Potosí, Mexico
Altitude: 1450m
Date: 23-Mar-98
Notes:

Field number: PH 116.5
Collector: Paul Hoxey
Species: Thelocactus bicolor
Locality: General Cepeda, Coahuila, Mexico
Altitude: 1500m
Date: 25-Mar-98
Notes:

Field number: PH 117.2
Collector: Paul Hoxey
Species: Thelocactus bicolor
Locality: West of General Cepeda, Coahuila, Mexico
Altitude: 1450m
Date: 26-Mar-98
Notes:

Field number: PH 117.3
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis?
Locality: West of General Cepeda, Coahuila, Mexico
Altitude: 1450m
Date: 26-Mar-98
Notes:

Field number: PH 122.1
Collector: Paul Hoxey
Species: Thelocactus bicolor
Locality: Hipólito junction, Coahuila, Mexico
Altitude: 1150m
Date: 27-Mar-98
Notes:

Field number: PH 127.3
Collector: Paul Hoxey
Species: Thelocactus bicolor
Locality: Between Saltillo and Monterrey, Nuevo León, Mexico
Altitude: 1150m
Date: 28-Mar-98
Notes:

Field number: PH 505.4
Collector: Paul Hoxey
Species: Thelocactus bicolor
Locality: Road to Tanque Nuevo, Coahuila, Mexico
Altitude: 1920-2150m
Date: 14-Nov-03
Notes:

Field number: PH 506.2
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis?
Locality: Ejido de Durazno, East of Parras, Coahuila, Mexico
Altitude: 1550m
Date: 14-Nov-03
Notes:

Field number: PH 509.17
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis
Locality: Southern slopes of the Sierra Parras, Coahuila, Mexico
Altitude: 1200-1410m
Date: 16-Nov-03
Notes:

Field number: PH 510.3
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis
Locality: Cerro Bola, Coahuila, Mexico
Altitude: 1100-1240m
Date: 17-Nov-03
Notes:

Field number: PH 511.2
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis
Locality: Laguna de Mayran, North of Parras, Coahuila, Mexico
Altitude: 1140m
Date: 18-Nov-03
Notes:

Field number: PH 512.5
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis
Locality: South of Estanque del León, Coahuila, Mexico
Altitude: 1230m
Date: 18-Nov-03
Notes:

Field number: PH 515.2
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis
Locality: Laguna de Mayran, North of Parras, Coahuila, Mexico
Altitude: 1100m
Date: 19-Nov-03
Notes:

Field number: PH 516.3
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis
Locality: highway MX30 North of San Pedro de las Colonias, Coahuila, Mexico
Altitude: 1080-1200m
Date: 19-Nov-03
Notes:

Field number: PH 517.1
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis
Locality: El Hundido, before Cuatrociénegas, Coahuila, Mexico
Altitude: 870m
Date: 20-Nov-03
Notes:

Field number: PH 522.13
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis
Locality: South of the Zona de Minas,Sierra la Paila, Coahuila, Mexico
Altitude: 1360m
Date: 22-Nov-03
Notes:

Field number: PH 523.2
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis
Locality: North of El Pilar, Coahuila, Mexico
Altitude: 1200m
Date: 22-Nov-03
Notes:

Field number: PH 524.1
Collector: Paul Hoxey
Species: Thelocactus bicolor
Locality: El Pantano, Coahuila, Mexico
Altitude: 1200m
Date: 22-Nov-03
Notes:

Field number: PH 535.6
Collector: Paul Hoxey
Species: Thelocactus bicolor
Locality: Huizache Junction, San Luis Potosí, Mexico
Altitude: 1400m
Date: 03-Nov-04
Notes:

Field number: PH 549.7
Collector: Paul Hoxey
Species: Thelocactus bicolor
Locality: Road to Tanque Nuevo, Coahuila, Mexico
Altitude: 1920m
Date: 08-Nov-04
Notes: Same locality as PH505

Field number: PH 550.6
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis
Locality: Laguna de Mayran, North of Parras, Coahuila, Mexico
Altitude: 1150m
Date: 09-Nov-04
Notes: Same locality as PH515

Field number: PH 551.11
Collector: Paul Hoxey
Species: Thelocactus bicolor ssp. bolaensis
Locality: Sierra la Paila, North of San José de la Paila, Coahuila, Mexico
Altitude: 1630m
Date: 09-Nov-04
Notes:

Field number: PH 71.2
Collector: Paul Hoxey
Species: Thelocactus bicolor
Locality: Sandia la Victoria, Nuevo León, Mexico
Altitude: 1600m
Date: 15-Mar-98
Notes:

Field number: PH 93.5
Collector: Paul Hoxey
Species: Thelocactus bicolor
Locality: South of Dr Arroyo, Nuevo León, Mexico
Altitude: 1550m
Date: 19-Mar-98
Notes:

Field number: PHA 15
Collector: Pavel Heřtus
Species: Thelocactus bicolor v. schottii
Locality: El Monte to Vizarron 88.5 km, Queretaro, Mexico
Altitude:
Date:
Notes:

Field number: PHA 1855
Collector: Pavel Heřtus
Species: Thelocactus bicolor
Locality: Cerritos turn, San Luis Potosí, Mexico
Altitude:
Date: 2014
Notes:

Field number: PM 48
Collector: Ken Preston-Mafham
Species: Thelocactus bicolor
Locality: Huizache, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: PM 57
Collector: Ken Preston-Mafham
Species: Thelocactus bicolor
Locality: Saltillo to Torreon, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PP 1030
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: North of Saltillo, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PP 1079
Collector: Pavel Pavlíček
Species: Thelocactus bicolor ssp. bolansis
Locality: Viesca, Coahuila, Mexico
Altitude: 1600m
Date:
Notes:

Field number: PP 1162
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: junction to Hipolito, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PP 1173
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: General Cepeda, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PP 1176
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Mapimi, Durango, Mexico
Altitude:
Date:
Notes:

Field number: PP 1254
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: El Coyote, San Luis Potosí, Mexico
Altitude:
Date:
Notes:

Field number: PP 1521
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Saltillo, microondas Mariposas, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PP 1539
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: North of Higueras, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PP 1559
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: South of Higueras, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PP 1562
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Hacienda Muerte, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PP 1565
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: MEX 57, Km 15, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PP 1568
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: El Pilar, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: PP 1583
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: La Vega - Venados, Coahuila, Mexico
Altitude:
Date: 2013
Notes:

Field number: PP 1584
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: San Juan de Boquillas,, Coahuila, Mexico
Altitude:
Date: 2013
Notes:

Field number: PP 243
Collector: Pavel Pavlíček
Species: Thelocactus bicolor v. bolansis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date: 1995
Notes: = JOBO86, LUK47A, PM48, PP243, SB281

Field number: PP 3
Collector: Pavel Pavlíček
Species: Thelocactus bicolor v. flavidispinus
Locality: Marathon, Brewster County, Texas, USA
Altitude:
Date:
Notes:

Field number: PP 432
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Parras, Coahuila, Mexico
Altitude:
Date: 1997
Notes:

Field number: PP 440
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: El Hundido, Coahuila, Mexico
Altitude:
Date: 1997
Notes:

Field number: PP 441
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Cuatro Ciénegas, Municipio Cuatro Ciénegas, Coahuila, Mexico
Altitude:
Date: 1997
Notes:

Field number: PP 447
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Parras, Coahuila, Mexico
Altitude:
Date: 1997
Notes:

Field number: PP 512
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: El Barril, Coahuila, Mexico
Altitude:
Date: 1998/11
Notes:

Field number: PP 516.1
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Sall - Monclova, MEX 57 km 153, Coahuila, Mexico
Altitude:
Date: 1998/11
Notes:

Field number: PP 545
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: El Hundido, Coahuila, Mexico
Altitude:
Date: 1998/11
Notes:

Field number: PP 560
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Viesca, Coahuila, Mexico
Altitude:
Date: 1998/11
Notes:

Field number: PP 703
Collector: Pavel Pavlíček
Species: Thelocactus bicolor ssp. schottii
Locality: Roma, Route 83, Starr County, Texas, USA
Altitude:
Date: 1998/11
Notes:

Field number: PP 844
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: El Chiflón, Coahuila, Mexico
Altitude:
Date: 1998/11
Notes:

Field number: PP 889
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: La Punta, Mexico
Altitude:
Date: 1998/11
Notes:

Field number: PP 895
Collector: Pavel Pavlíček
Species: Thelocactus bicolor
Locality: Tanque Menchaca, Coahuila, Mexico
Altitude:
Date: 1998/11
Notes: = JABO89, PP895

Field number: RAP 21
Collector: Raimondo Paladini
Species: Thelocactus bicolor
Locality: F55 road, 10 km West of Ramos Arizpe or km 24 to San Martin de Las Vacas, Coahulia, Mexico
Altitude:
Date: Dec 97 / Jan 98
Notes:

Field number: RCH 292
Collector: Reiner Chalupský
Species: Thelocactus bicolor
Locality: Mexico
Altitude:
Date:
Notes:

Field number: REP 1083b
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Parras, Coahuila, Mexico
Altitude: 1600m
Date: 18/11/1975
Notes: together with REP1083-1083f and Echinocereus stramineus

Field number: REP 1083k
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: San Rafael, Coahuila, Mexico
Altitude: 1700m
Date: 15/11/1975
Notes: together with REP1083g-1083k, Larrea tridentata, Fouquieria splendens, Echinocereus stramineus, Echinocereus merkeri; see REP488 too

Field number: REP 1090
Collector: Werner Reppenhagen
Species: Thelocactus bicolor v. bolansis
Locality: Cerro Bola, Coahuila, Mexico
Altitude: 1400m
Date: 21/11/1975
Notes: together with REP1087-1090a

Field number: REP 1197f
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Lerdo, Durango, Mexico
Altitude: 1200m
Date: 27/11/1976
Notes: together with REP1197c-1197s and Agave lechuguilla

Field number: REP 1202d
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Viesca, Coahuila, Mexico
Altitude: 1250m
Date: 30/11/1976
Notes: together with REP1200-1202e

Field number: REP 1203a
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Mapimi, Durango, Mexico
Altitude: 1500m
Date: 1/12/1976
Notes: together with REP1203-1203b, Echinocereus pectinatus, E. stramineus and Escobaria sp.

Field number: REP 2166
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: La Pena, Coahuila, Mexico
Altitude: 1200-1400m
Date: 7/3/1988
Notes: together with REP2165-7170a, Echinocereus merkeri, Echinocereus stramineus, Ferocactus hamatacanthus, opuntias

Field number: REP 2291
Collector: Werner Reppenhagen
Species: Thelocactus bicolor v. bolansis
Locality: Viesca, Sierra Zavaleta, Coahuila, Mexico
Altitude: 1200m
Date: 3/7/1989
Notes: together with REP2291-2296d, Opuntia imbricata, O. leptocaulis, O. herrfeldtii, Agave lechuguilla, Jatropha spathulata.

Field number: REP 2329c
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: East of Nazas, Durango, Mexico
Altitude: 1250m
Date: 20/11/1989
Notes: together with REP2328-2329c, Larrea tridentata, Opuntia herrfeldtii, O. macrocentra, O. leptocaulis, O. moelleriana, Jatropha dioica

Field number: REP 2332a
Collector: Werner Reppenhagen
Species: Thelocactus bicolor v. bolansis
Locality: Cerro Bola, Coahuila, Mexico
Altitude: 1400m
Date: 20/11/1989
Notes: together with REP2332-2332a;

Field number: REP 2336c
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: General Cepeda, Coahuila, Mexico
Altitude: 1800m
Date: 22/11/1989
Notes: together with REP2336-2336d, Opuntia herrfeldtii,O. microdasys, O. imbricata, O. kleiniae, Larrea tridentata, Yucca treculeana

Field number: REP 2340b
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Saucillo de Arriba, Coahuila, Mexico
Altitude: 1300m
Date: 23/11/1989
Notes: together with REP2339-2340b, Coryphantha poselgeriana, C. roederiana, Echinocereus pectinatus

Field number: REP 418
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Paso Guadelupe, Coahuila, Mexico
Altitude: 1100m
Date: 4/9/1971
Notes: together with REP416-429

Field number: REP 433
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Rinconada, Nuevo León, Mexico
Altitude: 1100m
Date: 5/9/1971
Notes: together with REP430-440, Opuntia microdasys and Yucca thompsoniana

Field number: REP 448
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Ramos Arispe, Coahuila, Mexico
Altitude:
Date: 8/9/1971
Notes: together with REP447-448

Field number: REP 450
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: San Lorenzo by Parras, Coahuila, Mexico
Altitude: 1500m
Date: 8/9/1971
Notes: together with REP449-453c

Field number: REP 456a
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Parras, Coahuila, Mexico
Altitude: 1600m
Date: 10/9/1971
Notes: together with REP454-456a

Field number: REP 457
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: El Carmen, Coahuila, Mexico
Altitude: 1000m
Date: 11/9/1971
Notes: together with REP457-468

Field number: REP 479a
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: San Vincente, Coahuila, Mexico
Altitude: 1000m
Date: 12/9/1971
Notes: together with REP469-479a

Field number: REP 481
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Perote by Parras, Coahuila, Mexico
Altitude: 1600m
Date: 13/9/1971
Notes: together with REP480-487

Field number: REP 492a
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: San Rafael, Coahuila, Mexico
Altitude: 1100m
Date: 15/9/1971
Notes: together with REP488-492a, Echinocactus horizonthalonius and Ferocactus hamatacanthus

Field number: REP 547
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Cuencame, Durango, Mexico
Altitude: 1650m
Date: 25/9/1971
Notes: together with REP544-552

Field number: REPP 1083b
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Parras, Coahuila, Mexico
Altitude: 1600m
Date: 18/11/1975
Notes: together with REP1083-1083f and Echinocereus stramineus

Field number: REPP 1083k
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: San Rafael, Coahuila, Mexico
Altitude: 1700m
Date: 15/11/1975
Notes: together with REP1083g-1083k, Larrea tridentata, Fouquieria splendens, Echinocereus stramineus, Echinocereus merkeri; see REP488 too

Field number: REPP 1090
Collector: Werner Reppenhagen
Species: Thelocactus bicolor v. bolansis
Locality: Cerro Bola, Coahuila, Mexico
Altitude: 1400m
Date: 21/11/1975
Notes: together with REP1087-1090a

Field number: REPP 1197f
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Lerdo, Durango, Mexico
Altitude: 1200m
Date: 27/11/1976
Notes: together with REP1197c-1197s and Agave lechuguilla

Field number: REPP 1202d
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Viesca, Coahuila, Mexico
Altitude: 1250m
Date: 30/11/1976
Notes: together with REP1200-1202e

Field number: REPP 1203a
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Mapimi, Durango, Mexico
Altitude: 1500m
Date: 1/12/1976
Notes: together with REP1203-1203b, Echinocereus pectinatus, E. stramineus and Escobaria sp.

Field number: REPP 2166
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: La Pena, Coahuila, Mexico
Altitude: 1200-1400m
Date: 7/3/1988
Notes: together with REP2165-7170a, Echinocereus merkeri, Echinocereus stramineus, Ferocactus hamatacanthus, opuntias

Field number: REPP 2291
Collector: Werner Reppenhagen
Species: Thelocactus bicolor v. bolansis
Locality: Viesca, Sierra Zavaleta, Coahuila, Mexico
Altitude: 1200m
Date: 3/7/1989
Notes: together with REP2291-2296d, Opuntia imbricata, O. leptocaulis, O. herrfeldtii, Agave lechuguilla, Jatropha spathulata.

Field number: REPP 2329c
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: East of Nazas, Durango, Mexico
Altitude: 1250m
Date: 20/11/1989
Notes: together with REP2328-2329c, Larrea tridentata, Opuntia herrfeldtii, O. macrocentra, O. leptocaulis, O. moelleriana, Jatropha dioica

Field number: REPP 2332a
Collector: Werner Reppenhagen
Species: Thelocactus bicolor v. bolansis
Locality: Cerro Bola, Coahuila, Mexico
Altitude: 1400m
Date: 20/11/1989
Notes: together with REP2332-2332a;

Field number: REPP 2336c
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: General Cepeda, Coahuila, Mexico
Altitude: 1800m
Date: 22/11/1989
Notes: together with REP2336-2336d, Opuntia herrfeldtii,O. microdasys, O. imbricata, O. kleiniae, Larrea tridentata, Yucca treculeana

Field number: REPP 2340b
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Saucillo de Arriba, Coahuila, Mexico
Altitude: 1300m
Date: 23/11/1989
Notes: together with REP2339-2340b, Coryphantha poselgeriana, C. roederiana, Echinocereus pectinatus

Field number: REPP 418
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Paso Guadelupe, Coahuila, Mexico
Altitude: 1100m
Date: 4/9/1971
Notes: together with REP416-429

Field number: REPP 433
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Rinconada, Nuevo León, Mexico
Altitude: 1100m
Date: 5/9/1971
Notes: together with REP430-440, Opuntia microdasys and Yucca thompsoniana

Field number: REPP 448
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Ramos Arispe, Coahuila, Mexico
Altitude:
Date: 8/9/1971
Notes: together with REP447-448

Field number: REPP 450
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: San Lorenzo by Parras, Coahuila, Mexico
Altitude: 1500m
Date: 8/9/1971
Notes: together with REP449-453c

Field number: REPP 456a
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Parras, Coahuila, Mexico
Altitude: 1600m
Date: 10/9/1971
Notes: together with REP454-456a

Field number: REPP 457
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: El Carmen, Coahuila, Mexico
Altitude: 1000m
Date: 11/9/1971
Notes: together with REP457-468

Field number: REPP 479a
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: San Vincente, Coahuila, Mexico
Altitude: 1000m
Date: 12/9/1971
Notes: together with REP469-479a

Field number: REPP 481
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Perote by Parras, Coahuila, Mexico
Altitude: 1600m
Date: 13/9/1971
Notes: together with REP480-487

Field number: REPP 492a
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: San Rafael, Coahuila, Mexico
Altitude: 1100m
Date: 15/9/1971
Notes: together with REP488-492a, Echinocactus horizonthalonius and Ferocactus hamatacanthus

Field number: REPP 547
Collector: Werner Reppenhagen
Species: Thelocactus bicolor
Locality: Cuencame, Durango, Mexico
Altitude: 1650m
Date: 25/9/1971
Notes: together with REP544-552

Field number: ROG 213
Collector: Helmut Rogozinski
Species: Thelocactus bicolor
Locality: Towards Hidalgo de Parral, Chihuahua, Mexico
Altitude:
Date: 1991
Notes:

Field number: RP 161
Collector: Ralph Peters
Species: Thelocactus bicolor v. bicolor
Locality: West of Lajitas, Brewster, Texas, USA
Altitude: 2300 feet
Date: 11/10
Notes: Big, husky plants

Field number: RS 1094
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: from Santa Barbara to San Luis de Cordero, Durango, Mexico
Altitude:
Date:
Notes: with M. pottsii v. minima

Field number: RS 1105
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: Bermejillo, Durango, Mexico
Altitude:
Date:
Notes:

Field number: RS 1113
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: km163, East of Cerro Bola
Altitude:
Date:
Notes: = RS 1089

Field number: RS 1141
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: El Hundido, restaurant Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: RS 1153
Collector: Roman Staník
Species: Thelocactus bicolor fma. alpinus
Locality: Sierra Azul, La Muralla, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: RS 1161
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: before Cedral, Noria La Cabra, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: RS 1164
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: behind Cedral direction to Estacion Vanegas, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: RS 1168
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: Cedral, hill with crucifix
Altitude:
Date:
Notes:

Field number: RS 1213
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: 1km from junction to La Tapona on Mexico 57
Altitude:
Date:
Notes:

Field number: RS 1241
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: San Ignacio del Texas, Nuevo Leon, Mexico
Altitude:
Date:
Notes:

Field number: RS 1257
Collector: Roman Staník
Species: Thelocactus bicolor v. wagnerianus
Locality: before Ejido Nuevo Yucatan, Paila, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: RS 1264
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: 15km from Las Coloradas, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: RS 1269
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: San Martin de las Vacas, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: RS 128
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: Rincón del Montero, before Parras, Coahuila, Mexico
Altitude:
Date:
Notes: up to 45cm tall, bolansis?

Field number: RS 1281
Collector: Roman Staník
Species: Thelocactus bicolor fma.
Locality: La Mina, Coahuila, Mexico to Popa
Altitude:
Date:
Notes:

Field number: RS 1303
Collector: Roman Staník
Species: Thelocactus bicolor v. schwarzii
Locality: South of Estacion Calles-Fortin Agrario, Tamaulipas, Mexico
Altitude:
Date:
Notes:

Field number: RS 358
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: Arteaga, Coahuila, Mexico
Altitude:
Date: 9/5/93
Notes: ruby red spines, = CSD187

Field number: RS 366
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: El Caracol, West of Saltillo, Coahuila, Mexico
Altitude:
Date:
Notes: = CSD195

Field number: RS 371
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: La Rosa, Coahuila, Mexico
Altitude:
Date:
Notes: = CSD200

Field number: RS 389
Collector: Roman Staník
Species: Thelocactus bicolor v. wagnerianus
Locality: Hipolito, Coahuila, Mexico
Altitude:
Date:
Notes: yellow, = CSD217B

Field number: RS 396
Collector: Roman Staník
Species: Thelocactus bicolor v. wagnerianus
Locality: 23km before El Pilar, Coahuila, Mexico
Altitude:
Date:
Notes: = CSD224

Field number: RS 4
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: La Rinconada, Nuevo Leon, Mexico
Altitude:
Date: 24/8/86
Notes: = RS87, CSD179

Field number: RS 409
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: Viesca, Coahuila, Mexico
Altitude:
Date:
Notes: = CSD236

Field number: RS 415
Collector: Roman Staník
Species: Thelocactus bicolor v. bolansis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date:
Notes: = RS693, = CSD241

Field number: RS 435
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: 20km behind Gomez Palacio, Durango, Mexico
Altitude:
Date: 14/5/93
Notes: = CSD260

Field number: RS 444
Collector: Roman Staník
Species: Thelocactus bicolor v. pottsii
Locality: Cuencam?, Durango, Mexico
Altitude:
Date:
Notes: = CSD269

Field number: RS 517
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: junction to Hipolito, Coahuila, Mexico
Altitude:
Date: 24/10/95
Notes: type

Field number: RS 554
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: Huizache, San Luis Potosi, Mexico
Altitude:
Date: 1996
Notes:

Field number: RS 581
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: km162, direction to Cuatro Ciénegas Coahuila, Mexico
Altitude:
Date: 1996
Notes:

Field number: RS 688
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: Plan de Ayala, Coahuila, Mexico
Altitude:
Date:
Notes: robust plants

Field number: RS 690
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: km223, from San Pedro direction to Cuatro Ciénegas
Altitude:
Date:
Notes:

Field number: RS 691
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: km163, from El Pilar direction to San Pedro, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: RS 692
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: km72.5, Route 57, Cuatro Ciénegas -Saltillo, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: RS 693
Collector: Roman Staník
Species: Thelocactus bicolor v. bolansis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date:
Notes: = RS415

Field number: RS 87
Collector: Roman Staník
Species: Thelocactus bicolor
Locality: La Rinconada, Nuevo Leon, Mexico
Altitude:
Date: 18/10/86
Notes: = RS4

Field number: RS 93
Collector: Roman Staník
Species: Thelocactus bicolor
Locality:
Altitude:
Date:
Notes: short spines, only one population

Field number: SB 1095
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor v. bolaensis
Locality: El Pilar, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: SB 1151
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor v. heterochromus
Locality: Rodeo, Durango, Mexico
Altitude:
Date:
Notes:

Field number: SB 1154
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor
Locality: Bermijillo, Durango, Mexico
Altitude:
Date:
Notes:

Field number: SB 1433
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor
Locality: South-East of Cuencame, Durango, Mexico
Altitude:
Date:
Notes:

Field number: SB 1491
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor v. flavidispinus
Locality: Boquillas, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: SB 1715
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor v. bolaensis
Locality: South of Boquillas, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: SB 1926
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor v. bolaensis
Locality: El Hundido, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: SB 278
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor
Locality: Huizache, San Luis Potosi, Mexico
Altitude:
Date:
Notes:

Field number: SB 281
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor v. bolaensis
Locality: Cerro Bola, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: SB 287
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor
Locality: Saltillo, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: SB 424
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor v. flavidispinus
Locality: Brewster County, Texas, USA
Altitude:
Date:
Notes:

Field number: SB 563
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor
Locality: Cuesta la Muralla, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: SB 564
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor v. heterochromus
Locality: Matamoros, Chihuahua, Mexico
Altitude:
Date:
Notes:

Field number: SB 567
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor v. schottii
Locality: Brewster County, Texas, USA
Altitude:
Date:
Notes:

Field number: SB 607
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor v. bolansis
Locality: San Pedro de las Colonias, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: SB 77
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor v. heterochromus
Locality: Jimenez, Chihuahua, Mexico
Altitude:
Date:
Notes: = T. bicolor v. pottsii previous list

Field number: SB 866
Collector: Steven (Steve) Brack
Species: Thelocactus bicolor
Locality: Starr County, Texas, USA
Altitude:
Date:
Notes:

Field number: SH 1000
Collector: Dennis Sargant (plants collected by Alfred Bernhard Lau)
Species: Thelocactus bicolor v. bolansis
Locality: Viesca, Coahuila, Mexico
Altitude: 1000m
Date: 3/8/1974
Notes: together with Astrophytum senile

Field number: SH 1456
Collector: Dennis Sargant (plants collected by Alfred Bernhard Lau)
Species: Thelocactus bicolor v. bolansis
Locality: Sierra Bola, Coahuila, Mexico
Altitude: 1200m
Date: 3/7/1983
Notes: together with Astrophytum senile, Echinocereus conglomeratus

Field number: SH 708
Collector: Dennis Sargant (plants collected by Alfred Bernhard Lau)
Species: Thelocactus bicolor v. tricolor
Locality: Ceballos, Durango, Mexico
Altitude: 1600m
Date: 2/6/1974
Notes: together with L707, L709, L710, Coryphantha delaetiana, Echinocereus conglomeratus

Field number: SH 794
Collector: Dennis Sargant (plants collected by Alfred Bernhard Lau)
Species: Thelocactus bicolor
Locality: Nazas, Durango, Mexico
Altitude: 1800m
Date: 10/5/1975
Notes: together with L971, L972, L973, Mammillaria pottsii, Leuchtenbergia principis, Echinocereus conglomeratus

Field number: SH 794a
Collector: Dennis Sargant (plants collected by Alfred Bernhard Lau)
Species: Thelocactus bicolor
Locality: Ascension, Nuevo Leon, Mexico
Altitude: 2400m
Date: 12/5/1975
Notes: together with Thelocactus conothelos v. argenteus, Gymnocactus beguinii

Field number: TK 343
Collector: Antonín Krejčík
Species: Thelocactus bicolor
Locality: La Punta j, Mexico
Altitude:
Date:
Notes:

Field number: VCCB 18
Collector: Zdenek Vasko, Vladislav Zatloukal
Species: Thelocactus bicolor
Locality: Hundido
Altitude: 792m
Date:
Notes:

Field number: VCCB 26
Collector: Zdenek Vasko, Vladislav Zatloukal
Species: Thelocactus bicolor
Locality: Viesca
Altitude: 1252m
Date:
Notes:

Field number: VCCB 34
Collector: Zdenek Vasko, Vladislav Zatloukal
Species: Thelocactus bicolor v. bolansis
Locality: Parras
Altitude: 1607m
Date:
Notes:

Field number: VCCB 44
Collector: Zdenek Vasko, Vladislav Zatloukal
Species: Thelocactus bicolor
Locality: West of Troje de los Morenos
Altitude: 1595m
Date:
Notes:

Field number: VS 167
Collector: Vladimír Šorma
Species: Thelocactus bicolor fma. schottii
Locality: Roma, Route 83, Texas, USA
Altitude:
Date:
Notes:

Field number: VZ 18
Collector: Zdeněk Vaško, Vladislav Zatloukal
Species: Thelocactus bicolor
Locality: Hundido
Altitude: 792m
Date:
Notes:

Field number: VZ 26
Collector: Zdeněk Vaško, Vladislav Zatloukal
Species: Thelocactus bicolor
Locality: Viesca
Altitude: 1252m
Date:
Notes:

Field number: VZ 34
Collector: Zdeněk Vaško, Vladislav Zatloukal
Species: Thelocactus bicolor v. bolansis
Locality: Parras
Altitude: 1607m
Date:
Notes:

Field number: VZ 44
Collector: Zdeněk Vaško, Vladislav Zatloukal
Species: Thelocactus bicolor
Locality: West of Troje de los Morenos
Altitude: 1595m
Date:
Notes:

Field number: VZD 18
Collector: Zdeněk Vaško, Vladislav Zatloukal
Species: Thelocactus bicolor
Locality: Hundido
Altitude: 792m
Date:
Notes:

Field number: VZD 26
Collector: Zdeněk Vaško, Vladislav Zatloukal
Species: Thelocactus bicolor
Locality: Viesca
Altitude: 1252m
Date:
Notes:

Field number: VZD 34
Collector: Zdeněk Vaško, Vladislav Zatloukal
Species: Thelocactus bicolor v. bolansis
Locality: Parras
Altitude: 1607m
Date:
Notes:

Field number: VZD 44
Collector: Zdeněk Vaško, Vladislav Zatloukal
Species: Thelocactus bicolor
Locality: West of Troje de los Morenos
Altitude: 1595m
Date:
Notes:

Field number: WH 30
Collector: Walter Hellinx
Species: Thelocactus bicolor
Locality: Bermejillo to Mapimi, Durango, Mexico
Altitude: 1350m
Date:
Notes:

Field number: WH 34
Collector: Walter Hellinx
Species: Thelocactus bicolor fma. bolaensis
Locality: 25km South-East of Viesca, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: WH 37
Collector: Walter Hellinx
Species: Thelocactus bicolor fma. bolaensis
Locality: Puerta de Ventanillas, Coahuila, Mexico
Altitude: 1185m
Date:
Notes:

Field number: WH 40
Collector: Walter Hellinx
Species: Thelocactus bicolor fma. bolaensis
Locality: East of El Hundido, Coahuila, Mexico
Altitude: 1140m
Date:
Notes:

Field number: WH 44
Collector: Walter Hellinx
Species: Thelocactus bicolor fma. bolaensis
Locality: La Cuchilla, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: WTH 649
Collector: Wolter ten Hoeve
Species: Thelocactus bicolor
Locality: Near the mountains West of Aldama, Chihuahua, Mexico
Altitude:
Date: 2006
Notes:

Field number: WTH 833
Collector: Wolter ten Hoeve
Species: Thelocactus bicolor v. schwarzii
Locality: In nearly flat land South of Fortin Agrario, Tamaulipas, Mexico
Altitude:
Date: 2009
Notes: Also Astrophytum asterias, Echinocactus texensis and Ancistrocactus

Field number: Z 127
Collector: Carlo Zanovello
Species: Thelocactus bicolor
Locality: Myer y Noriega, Nuevo León, Mexico
Altitude:
Date:
Notes:

Field number: Z 37
Collector: Carlo Zanovello
Species: Thelocactus bicolor v. tricolor
Locality: Ojo Caliente, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: Z 57
Collector: Carlo Zanovello
Species: Thelocactus bicolor v. wagnerianus
Locality: El Dorado, Coahuila, Mexico
Altitude:
Date:
Notes:

Field number: ZRI 104/08
Collector: Zdeněk Richter
Species: Thelocactus bicolor v. bolaensis
Locality: El Cuatro de Marzo, Coahuila, Mexico
Altitude:
Date: 2008
Notes:

Field number: ZRI 105/08
Collector: Zdeněk Richter
Species: Thelocactus bicolor v. bolaensis
Locality: Emiliano Zapata, Coahuila, Mexico
Altitude:
Date: 2008
Notes:

Field number: ZRI 379/10
Collector: Zdeněk Richter
Species: Thelocactus bicolor v. wagnerianus
Locality: La Reforma, Coahuila, Mexico
Altitude:
Date: 2010
Notes:

Field number: ZRI 96/08
Collector: Zdeněk Richter
Species: Thelocactus bicolor v. bolaensis
Locality: El Amparo, Coahuila, Mexico
Altitude:
Date: 2008
Notes:

Major parts of the initial data for this query service were provided by Dave Whiteley and Petr Antálek. Other data were supplied by, inter alia, Giovanna Anceschi, Gérard Ardisson, Jean-André Audissou, Karl Augustin, Geoff Bailey, Brian Bates, Jürgen Beck, Ludwig Bercht, Tomasz Blaczkowski, Ignazio Blando, Clazien Bouwman-van Egmond, Ingo Breuer, Sylvain Burgaud, Alan Butler, Graham Charles, Martina Colli, Philippe Corman, Kádár Csaba, Rodrigo Dacal, Amante Darmanin, Gérard Delanoy, Aldo Delladdio, Ulrich Dosedal, Igor Dráb, Pavel Duchek, Mark Faint, Ingbert Fick, Daiv Freeman, Pierre Gambart, Wolfgang Gemmrich, Alessandro Gentili, Klaus Gilmer, Quentin Groom, Pavel Heřtus, Wolter ten Hoeve, Paul Hoxey, Cyrill Hunkeler, Zlatko Janeba, Jan Ječmínek, Jakub Jilemicky, Bert Jonkers, Leszek Kasperski, Fred Kattermann, Hans-Josef Klinkhammer, Wolfgang Krueger, Tomáš Kulhánek, Michel Lacoste, Al Laius, Simon Langer, Andreas Laras, Martin Lowry, Christophe Ludwig, Alberto Magli, Peter Mansfeld, Georges Marchand, Ross and Fraser Marriott, Massimo Meregalli, Roger Moreton, Andrzej Mucha, Dave Naylor, Martina and Andreas Ohr, Benjamin Oliver, Raimondo Paladini, Wolfgang Papsch, Daniel Parker, Pavel Pavlíček, Ralph Peters, Ian Robinson, Chris Rodgerson, Zvone Rovsek, Lucio Russo, Volker Schädlich, Eberhard Scholz, Daniel Schweich, Bernhard Schweitzer, Chris Sherrah, Francesco Soldi, Stanislav Spurny, Thomas Strub, Brian Thomson, Jaroslav Ullmann, Willy Verheulpen, Johan de Vries, Mario Wick, Mats Winberg and Jan Ziegrosser. Translation and other assistance were given by Sophie Hilton, Zlatko Janeba, and Frank Sengpiel. I am grateful to all of them for their help and permission to use this data.

Further additions and editing of the data, and conversion to a WWW query service, were done by Ralph Martin – see his Cactus and Succulent Page.

If you have any corrections, additions, bug reports, offers of further data files, or other comments on this service, please email them to me at ralph@cs.cf.ac.uk.

Go back to the query page or the finder page.