SRSC
00001139 G. Harper s.n. 1997-09-28
Mexico, Coahuila, San Ysidro Ranch, Sierra del Carmen, west facing slopes, 28.848357 -102.595922, 1384m
SRSC
00001140 Barton H. Warnock 11646 1953-08-08
Mexico, Coahuila, North slope of Picacho del Centinela, Del Carmen Mts., 1829m
SRSC
00001142 Ernest Marsh 230 1935-00-00
Mexico, Coahuila, Muzquiz.
SRSC
00001143 Barton H. Warnock 11527 1953-08-24
Mexico, Coahuila, Camp about 15 mi. below Picacho del Centinela., 1402m
SRSC
00000268 R. Spellenberg 14560 2013-07-12
Mexico, Coahuila, Saltillo, About 50 m from Nuevo Leon boundary on road from San Rafael de Galeana to La Carbonera, about 30 air km SW of San Rafael de Galeanna, 4.8 road km S of La Hediondilla, 0.3 km S of junction of road to San Jose del Alamito., 24.89317 -100.73956, 570m
SRSC
00001216 D. S. Correll 23185 1959-10-16
Mexico, Chihuahua, In mats on boulders, on summit of Sierra Mohinora., 3048 - 3139m
SRSC
00001226 R. Spellenberg 14484 2012-09-25
Mexico, Chihuahua, Batopilas, On Batopilas-Urique-Samachique Rd. NW of Batopilas 8.6 road km above crossing of Rio Batopilas, 27.05261 -107.75992, 1500m
SRSC
00001231 A. M. Powell 1588 1968-05-22
Mexico, Coahuila, Limestone bluffs in dead-end Boquilla Canyon, Sierra de la Encantada, ca. 92.5 mi NW of Muzquiz.
SRSC
00001232 T. Wendt 525 1974-08-07
Mexico, Coahuila, Maderas del carmen: 3/4 mi N of El Dos on trail to El Tres, along stream., 28.991667 -102.608333, 2325m
SRSC
00001234 Robert A. Bye Jr 9276 1979-03-26
México, Chihuahua, Batopilas, Sierra Madre Occidental; N side of Barranca de Batopilas between La Bufa and Quirire, 27.1364 -107.575, 915 - 1890m
SRSC
00001242 C. Feddema 2278 1963-10-31
Mexico, Jalisco, Rancho Viejo, about 10 km ENE of Huejuquilla El Alto., 1900m
SRSC
00001245 R.W. Spellenberg 8104 1985-04-28
Mexico, Chihuahua, Maguarichi, At Maguarichi and to 3 mi NE along road, 27.875 -107.9917, 1700m
SRSC
00001246 A. M. Powell 1593 1968-05-22
Mexico, Coahuila, Dead-end canyon (Boquilla Canyon), Sierra de la Encantada, ca. 10 mi. WNW of Rancho La Pena, ca. 92.5 mi. NW of Muzquiz.
SRSC
00001247 A.M. Powell 2536 1973-07-14
Mexico, Chihuahua, About 16 mi from Est. Moreon, near lake road.
SRSC
00001291 Barton H. Warnock 11609 1953-08-24
Mexico, Coahuila, Picacho del Centinela; Del Carmen Mts., 1829m
SRSC
00001292 Barton H. Warnock 11609 1953-08-24
Mexico, Coahuila, Picacho del Centinela; Del Carmen Mts., 1829m
SRSC
00001327 Sandra Aguilar Ruiz 164 1991-08-08
Mexico, Coahuila, Rancho El Rincon, on SW margin of Serranias del Burro (part of Sierra del Carmen), ca. 80 km SE of Big Bend National Park, Texas. Cañón el Becerro., 28.666667 -102.25, 1400 - 2100m
SRSC
00001328 Sandra Aguilar Ruiz 164 1991-08-08
Mexico, Coahuila, Rancho El Rincon, on SW margin of Serranias del Burro (part of Sierra del Carmen), ca. 80 km SE of Big Bend National Park, Texas. Cañón el Becerro., 28.666667 -102.25, 1400 - 2100m
SRSC
00001333 R.K. Vickery, Jr. 2901 1976-05-12
Mexico, Durango, Km 165.5 on Mexico 40 Highway, 2220m
SRSC
00001430 James Henrickson 7024 1971-09-22
Mexico, Chihuahua, Juárez Municipality, ca 32 miles S of Cd. Juarez, 4 miles S of Samalayuca, 31.333333 -106.466667, 1310m
SRSC
00001499 Ernest Marsh 229
Mexico, Coahuila, Muzquiz.
SRSC
00001538 Sandra Aguillar Ruiz 306 1992-11-18
Mexico, Coahuila, Rancho El Rincon, on SW margin of Serranias del Burro (part of Sierra del Carmen), ca. 80 km SE of Big Bend national Park, Texas. Rancho Las Pilas., 28.666667 -102.25, 1400 - 2100m
SRSC
00001986 James Henrickson 17840a 1978-09-21
Mexico, Zacatecas, On hills around Zacatecas on road from Hwy 45 to La Bufa via Motel del Bosque N of town., 22.75 -102.55, 2500m
SRSC
00001987 James Henrickson 14227 1974-09-23
Mexico, Coahuila, Qesm Hurghada, 15.2 (rd) miles N of Villa Ocampo along new hand-made road to Guaje, 27.55 -102.45, 1200m
SRSC
00001988 James Henrickson 17526 1978-09-23
Mexico, San Luis Potosi, Around lake at Salinas on eastern side just N of town., 22.566667 -101.733333, 2100m
SRSC
00001989 James Henrickson 17435 1978-09-19
Mexico, Coahuila, Ca. 13 miles E of Cuatro Cienegas, in field W of Sacramento, 2 mi E of El Venado., 27 -101.85, 650m
SRSC
00001990 James Henrickson 19242 1982-10-09
Mexico, Tamaulipas, Ca. 52 air km WNW of Jaumave, 10 km NW of Miquihuana, 8-16 km N of La Perdida along lower road to Marcela, limestone canyon area., 23.625 -99.866667, 1800 - 1900m
SRSC
00001991 James Henrickson 17506 1978-09-21
Mexico, Zacatecas, 4.6 road miles NE of Hwy 49 along Hwy 54 towards Concepcion del Oro; roadside., 22.883333 -102.566667, 2200m
SRSC
00001992 James Henrickson 18489 1980-09-12
Mexico, Durango, Ca. 110 air km NNW of Torreon 1 km N of Yermo along Hwy 49., 26.016667 -104.416667, 1180m
SRSC
00001993 James Henrickson 14219a 1974-09-23
Mexico, Coahuila, Ca. 180 km NW of Cuatro Cienegas, on Llono del Guaje, ca. 6.4 miles SW of Ejido El Guaje., 28.033333 -103.283333, 1090m
SRSC
00001994 James Henrickson 12361 1973-08-14
Mexico, Durango, Ca. 14 air miles WSW of Torreon, 2.5 mi W of Hwy 40 towards Microondas Est. Sapioris, S side of canyon along road., 25.3 -103.716667, 1341m
SRSC
00001995 James Henrickson 15093 1976-08-08
Mexico, Coahuila, Ca. 78 (air) miles S of Big Bend National Park basin, in the southern central Valle de Pinos (Vacas) of the Sierra Santa Fe del Pino., 28.1 -103, 1600m
SRSC
00001996 James Henrickson 15019 1976-08-06
Mexico, Coahuila, Ca. 54 (air) miles SE of Big Bend National Park Basin in S end of Sierra Maderas del Carmen in the Canyon de la Fronteriza, 2 mi NE of Rancho San Isidro, at end of Canon del Alamo., 28.916667 -102.55, 1700 - 2000m
SRSC
00001997 James Henrickson 15593 1977-10-10
Mexico, Coahuila, Ca. 18 miles WSW of Villa Ocampo at the Cuesta Zozaya, the passes from the high limestone plain to the clay lowlands along the road to Laguna del Ray., 27.25 -102.7, 1500m
SRSC
00001998 James Henrickson 7797 1972-09-19
Mexico, Coahuila, Ca. 15 air miles E of Guimbalete, north of Laguna del Rey towards La Providenca in Bolson de Mapimi, at margin of Laguna del Rey., 27.05 -103.45, 1036m
SRSC
00001999 James Henrickson 6003 1973-08-25
Mexico, Coahuila, Ca. 28.4 road miles NW of San Pedro along Chih. Hwy 30 in Puerto de Ventanillas, the first past NW of La guna del Mayran., 26.033333 -102.716667, 1143m
SRSC
00002000 James Henrickson 6095 1971-08-29
Mexico, Coahuila, Ca. 15 ((air) miles NW of Las Delicias, in broad southward draining arroyo N of Sierra de las Delicias., 26.333333 -102.85, 975m
SRSC
00002001 James Henrickson 7022 1971-09-22
Mexico, Coahuila, Ca. 32 miles S of Cd. Juarez, sand dunes, 4 miles S of Samalayuca., 31.333333 -106.466667, 1310m
SRSC
00002002 James Henrickson 17485 1978-09-21
Mexico, Zacatecas, On hills around Zacatecas, on road from Hwy 45 to La Bufa via Motel de Bosque, N of town., 22.75 -102.55, 2500m
SRSC
00002003 James Henrickson 19225 1982-10-09
Mexico, Tamaulipas, Ca. 53 air km WNW of Jaumave, ca 14 km NW of Miquihuana, ca. 25 km N of La Perdida along road towards Marcela, on SW facing limestone slopes near turnoff to Valle Hermoso., 23.683333 -99.783333, 2700m
SRSC
00002004 James Henrickson 18918 1982-04-24
Mexico, Nuevo Leon, Ca. 9 mi W of Inturbide along road to Galeana., 24.7 -99.866667, 1800m
SRSC
00002005 James Henrickson 6436 1971-09-06
Mexico, San Luis Potosi, 6.5 (rd) miles S of Arista, limestone hills., 22.566667 -100.866667, 1524m
SRSC
00002006 James Henrickson 13730 1973-09-30
Mexico, Coahuila, Ca. 18 (air) miles NE of Tlahualilo in Sierra de Tlahualilo, ca. 9 (air) miles NW of Los Charcos de Risa, broad canyon-arroyo E of peak., 26.266667 -103.25, 1402m
SRSC
00002007 James Henrickson 14963 1976-08-05
Mexico, Coahuila, Ca. 54 miles SW of Big Bend National Park in the S end of Sierra Maderas del Carmen in Canon del Alamo, 1/2 mile NE of Rancho San Isidro, along large arroyo., 28.9 -102.55, 1500m
SRSC
00002008 James Henrickson 17471 1978-09-21
Mexico, Coahuila, Ca. 40 air miles ENE of Torreon, ca. 1 mile E of jct of Hwy 40 and hwy SE of San Pedro, N-facing limestone slopes of La Cuchilla (Sa. del Refugio or Sa. de la Cuchilla)., 25.616667 -102.85, 1250m
SRSC
00002009 James Henrickson 184225 1980-09-08
Mexico, Chihuahua, Ca. 32 air miles SW of Nuevo Casas Grandes in Sierra Madre Occidental ca 14 mi WSW of Estacion Mata Ortiz, ca. 1.5 mi E of Rancho del Arco., 30.083333 -108.216667, 1981m
SRSC
00002010 James Henrickson 14353b 1974-09-27
Mexico, Coahuila, Ca. 50 (air) km. NW of Saltillo, ca 4 miles N of Hwy 40 towards Hipolito just N of gas pipeline just N of lake, on flats., 25.633333 -101.383333, 1160m
SRSC
00002038
Mexico, San Luis Potosi
SRSC
00002039 James Henrickson 18894 1982-04-24
Mexico, Nuevo Leon, Ca. 5 km NNE of Galeana on rocky slopes below Cerro Laborador, the massive limestone range just E of town., 24.85 -100.066667, 2000m
SRSC
00002040 James Henrickson 13673 1973-09-29
Mexico, Coahuila, Ca. 35 (air) miles SSW of Cuatro Cienegas, in northern slope of Sierra de Los Alamitos, ca. 9.2 (road) miles S of El Hundido., 26.5 -102.283333, 1417m
SRSC
00002041 James Henrickson 15082 1976-08-07
Mexico, Coahuila, Ca. 86 (air) miles S of Big Bend National Park basin, in open desert S of Sierra Santa Fe del Pino, 7.4 miles W of Rancho Agritos (R. Cimmaron)., 28.033333 -102.883333, 1400m
SRSC
00002042 James Henrickson 14127 1974-09-17
Mexico, Chihuahua, Ca. 27 (air) miles ENE of Escalon at N end of Laguna de los Palomas, ca. 1 mile SE of Carrillo., 26.866667 -103.916667, 1100m
SRSC
00002043 James Henrickson 16172 1977-05-16
Mexico, Coahuila, Sierra de Paila, in the limestone Canon de Mimbre, 7 (rd) miles NE of Hipolito, along arroyo margins., 25.75 -101.466667, 1500m
SRSC
00002044 James Henrickson 18477 1980-09-10
Mexico, Chihuahua, Ca. 39 air miles NE of Cd. Chihuahua on E side of limestone Sierra El Morrion near Mina La Nueva Esperanza, arroyo and canyon just east of mine., 28.916667 -105.533333, 1250m
SRSC
00002045 James Henrickson 18468 1980-09-10
Mexico, Chihuahua, Ca. 39 air miles NE of Cd. Chihuahua on E side of limestone Sierra El Morrion near Mina La Nueva Esperanza., 28.916667 -105.533333, 1500m
SRSC
00002046 James Henrickson 19109 1982-10-07
Mexico, Tamaulipas, Ca. 35 air kn W of Jaumave, ca. 9 km N of Hwy 70 on road to Bustamente, lower valley slopes., 23.383333 -99.7, 1800m
SRSC
00002047 James Henrickson 13633 1973-09-28
Mexico, Coahuila, Ca. 22 (air) miles WNW of Cuatro Cienegas, in upper portion of limestone Canyon de la Hacienda, below 1st lumber camp in Sierra de la Madera., 27.066667 -102.416667, 1524 - 1829m
SRSC
00002048 James Henrickson 19073 1982-10-06
Mexico, Tamaulipas, Ca. 33 air km E of Jaumave; 2-3 km N of Hwy 70 on road to Bustamente; in valley and slopes., 23.283333 -99.633333, 1750m
SRSC
00002049 James Henrickson 11723 1973-08-02
Mexico, Coahuila, Ca. 35 (air) miles S of Monclova, in Canyon la Gavia, in northwest side of Sierra de la Gavia, in lower limestone canyon ., 26.35 -101.283333, 1433m
SRSC
00002050 James Henrickson 14965 1976-08-05
Mexico, Coahuila, Ca. 54 miles SW of Big Bend National Park in the S end of Sierra Maderas del Carmen in Canon del Alamo; 0.5 mi NE of Rancho San Isidro, along large arroyo., 28.9 -102.55, 1500m
SRSC
00002051 James Henrickson 14099 1974-09-14
Mexico, Chihuahua, Ca. 64 (air) miles SW of Cd. Juarez, 13.1 (rd) miles N of Guzman., 31.416667 -107.5, 1200m
SRSC
00002052 James Henrickson 14105 1974-09-14
Mexico, Chihuahua, Ca. 65 (air) miles SW of Cd. Juarez, 6.8 (rd) miles N of Guzman, saline flats of Laguna Guzman., 31.333333 -107.466667, 1162m
SRSC
00002053 James Henrickson 19742 1984-09-06
Mexico, Coahuila, Plains SW of Cuatro Cienegas about 7 miles SW of town along highway to San Pedro, saline flats., 26.916667 -102.116667, 710m
SRSC
00002054 James Henrickson 14978 1976-08-05
Mexico, Coahuila, Ca. 54 (air) miles SE of Big Bend National Park Basin in S end of Sierra Maderas del Carmen in the Canon de la Fronteriza, 1-3 miles NW of Rancho San Isidro, at end of Canon del Alamo., 28.916667 -102.55, 1500 - 1800m
SRSC
00002055 James Henrickson 8000 1972-09-24
Mexico, Chihuahua, 7 miles S of Delicias along Hwy 54., 28.116667 -105.4, 1219m
SRSC
00002056 James Henrickson 18427 1980-09-08
Mexico, Chihuahua, Ca. 30 sir miles SW of Nuevo Casas Grandes in Sierra Madre Occidental ca 15 miles WSW of Estacion Mate Ortiz, just E of Rancho del Arco, in forest along streambed along trail., 30.083333 -108.25, 1981m
SRSC
00002057 James Henrickson 14979 1976-08-05
Mexico, Coahuila, Ca. 54 (air) miles SE of Big Bend National Park basin in S end of Sierra Maderas del Carmen in the Canon de la Fronteriza, 1-3 miles NS of Ranch San Isidro, at end of Canon del Alamo., 28.916667 -102.55, 1500 - 1800m
SRSC
00002058 James Henrickson 13630 1973-09-28
Mexico, Coahuila, Ca. 22 (air) miles WNW of Cuatro Cienegas, in upper portion of limestone Canyon de la Hacienda, below 1st lumber camp in Sierra de la Madera., 27.066667 -102.416667, 1524 - 1829m
SRSC
00002059 James Henrickson 19078 1982-10-06
Mexico, Tamaulipas, Ca. 33 air km E of Jaumave; 2-3 km N of Hwy 70 on road to Bustamente, in valley and slopes., 23.283333 -99.633333, 1750m
SRSC
00002060 James Henrickson 19245 1982-10-09
Mexico, Tamaulipas, Ca. 52 air km WNW of Jaumave, 10 km NW of Miquihuana, near La Perdida along road to Marcela., 23.616667 -99.866667, 1700m
SRSC
00002061 James Henrickson 14274 1974-09-25
Mexico, Coahuila, 2.7 (rd) miles W of Cuatro Cienegas along Anteojo Canal, about 1/2 mile E of Cienega Anteojo, in disturbed banks along canal, 26.866667 -102.1, 770m
SRSC
00002063 James Henrickson 13350 1973-09-22
Mexico, Zacatecas, 16 (air) miles E of Concepcion del Oro, on upper north side of Sierra del Astillero, ca. 3 miles NE of Guadalupe Garceron, 1/2 mile N of summit., 24.633333 -101.133333, 2499m
SRSC
00002064 James Henrickson 19119 1982-10-07
Mexico, Tamaulipas, Ca. 37 air km W of Jaumave, ca. 5.5 km E of Bustmente on trail to Miquihuana; rocky limestone S-facing slope., 23.45 -99.716667, 1800m
SRSC
00002065 James Henrickson 12226 1973-08-09
Mexico, Coahuila, Ca. 32 (air) miles NE of Tlahaulilo, in NW of portion of Sierra de las Delicias in the First Canyon south of Puerto de las Sardines, steep gypsum outcropping on side of canyon., 26.366667 -103.1, 1341m
SRSC
00002066 James Henrickson 19724 1984-09-04
Mexico, Nuevo Leon, 7 rd. miles W of Iturbide, 3.2 mi E of jct on road to Galeana, near El Barrial in upper forest., 24.75 -100, 1700m
SRSC
00002067 James Henrickson 11578 1973-07-29
Mexico, Coahuila, Ca. 20 (air) miles ENE of Boquillas, 3.5 miles W of Cerro Agua Chile in limestone flats., 29.233333 -102.6, 1158m
SRSC
00002125 James Henrickson 17587 1978-09-25
Mexico, San Luis Potosi, At Motel El Hacienda on N end of Matehuala, gypsum flats near town., 23.65 -100.65, 1581m
SRSC
00002126 James Henrickson 17588 1978-09-25
Mexico, San Luis Potosi, At Motel Hacienda, at N end of Matehuala, gypsum flats near town., 23.65 -100.65, 1581m
SRSC
00002127 James Henrickson 14865 1975-12-08
Mexico, Nuevo Leon, 15 (rd) miles S of San Roberto Junction along Hwy 57., 24.466667 -100.283333, 1855m
SRSC
00002128 James Henrickson 13344 1973-09-22
Mexico, Zacatecas, 16 (air) miles E of Concepcion del Oro, on upper north side of Sierra del Astillero, ca 3 miles NE of Guadalupe Garderon, 0.5 mi N of summit., 24.633333 -101.133333, 2499m
SRSC
00002129 James Henrickson 18488 1980-09-12
Mexico, Durango, Ca. 110 air km WNW of Torreon, 1 km. N of Yermo along Hwy 49, gyppy flat., 26.016667 -104.416667, 1180m
SRSC
00002130 James Henrickson 12308 1973-08-13
Mexico, Durango, 4 (rd) miles N of Pedricena turnoff along Hwy 40; 50 ft. N of Microondas Est. Sierra Lorenzo., 25.15 -103.733333, 1372m
SRSC
00002131 James Henrickson 6368 1971-09-02
Mexico, Zacatecas, 12.5 (rd) miles NNE of Rancho Hidalgo, ca 27 miles NNW of Camacho., 24.783333 -102.233333, 1935m
SRSC
00002132 James Henrickson 13339 1973-09-22
Mexico, Zacatecas, 16 (air) miles E of Concepcion del Oro, just below and W of ridge of igneous Sierra del Astillero, ca 0.5 mile W of summit, ca 3 miles NE of Guadalupe Garderon., 24.616667 -101.133333, 2195m
SRSC
00002133 James Henrickson 13788 1973-10-02
Mexico, Chihuahua, Ca 20 (air) km. ENE of Cd. Jiminez, upper slopes of Sierra de Chupaderos, along steep bluffs above arroyo, summit of Sierra., 27.2 -104.716667, 2042m
SRSC
00002134 James Henrickson 13555 1973-09-26
Mexico, Coahuila, Ca 22 (air) miles WNW of Cuatro Cienegas, in lower Canyon de la Hacienda of limestone Sierra de la Madera, 2-3 miles from roads' end., 27.05 -102.416667, 1585m
SRSC
00002135 James Henrickson 17589 1978-09-25
Mexico, San Luis Potosi, At Motel El Haceinda, N end of Matehuala, gypsum flats near town., 23.65 -100.65, 1581m
SRSC
00002136 James Henrickson 15007 1976-08-06
Mexico, Coahuila, Ca 54 (air) miles SE of Big Bend National Park basin in S end of Sierra Maderas del Carmen in the Canon de la Fronteriza, 1-3 miles NW of Ranch San Isidro, at end of Canon del Alamo, riparian area., 28.916667 -102.55, 1500 - 1800m
SRSC
00002137 James Henrickson 11226 1973-07-22
Mexico, Chihuahua, Ca 20 rd miles S of US-Mexico border; 2.2 miles N of Adjuana station just N of Jct of Hwy 23 S of Las Palomas and Hwy 2 W from Cd. Juarez, roadside ditch., 31.55 -107.65, 1219m
SRSC
00002138 James Henrickson 18492 1980-09-12
Mexico, Durango, Ca 54 air km SSE of Torreon in canyon above Estacion Otto in SW side of the Sierra de Jimulco near Mina San Jose., 25.066667 -103.216667, 1850m
SRSC
00002139 James Henrickson 18511 1980-09-12
Mexico, Durango, Ca 33 air km S of Torreon along Dgo B8 between hwy 40 (Vic. of Est. Diego & road W to Sa Jimilco (Near San Jose), open plain., 25.216667 -103.5, 1300m
SRSC
00002140 James Henrickson 18712 1980-09-29
Mexico, Coahuila, Ca 65 air km NW of Cuatro Cienegas at Rancho San Pedro, ca 25 air km WSW of Villa Ocampo, disturbed areas and around ranch house., 27.25 -102.616667, 1700m
SRSC
00002141 James Henrickson 19064 1982-10-06
Mexico, Tamaulipas, Ca. 91 road km N of Cd. Victoria along Hwy 85, ca 13 km S of Villagran, along roadcut., 24.366667 -99.466667, 360m
SRSC
00002142 James Henrickson 12046b 1973-08-07
Mexico, Coahuila, 28.3 (rd) miles W of Cuatro Cienegas towards Esmaralda, limestone arroyo-canyon along railroad., 26.916667 -102.5, 1067m
SRSC
00002143 James Henrickson 18483 1980-09-12
Mexico, Chihuahua, Ca 33 air km ENE of Cd. Camargo in base of Bajio El Gringo along Hwy to Ojinaga, clay plain., 27.8 -104.85, 1250m
SRSC
00002144 James Henrickson 18746 1980-10-01
Mexico, Coahuila, Sierra Jardin; ca 77 air miles SE of Big Bend National Park basin in N Coahuila; N and E slopes of Valley ca 7 km S of Rancho El Jardin, part of Ejido del Sur., 29.016667 -102.633333, 1600 - 2200m
SRSC
00002145 James Henrickson 11250 1973-07-23
Mexico, Chihuahua, Ca. 31 air miles S of Cd. Juarez, 4.9 miles S of Samalayuca in open sand dunes along Hwy 45., 31.283333 -106.5, 1204m
SRSC
00002146 James Henrickson 7854 1972-09-20
Mexico, Coahuila, 10 (rd) miles E of Los Americanos, 11.5 miles W of La Vibora along Esmaralda-Cuatro Cienegas railroad, in Bolson de Mapimi., 27.133333 -103.2, 1128m
SRSC
00002147 James Henrickson 7916 1972-09-21
Mexico, Coahuila, Ca. 44 (air) miles W of Cuatro Cienegas, 3 miles NE of Est. Zacatosa in Bolson de Mapimi region, open desert., 27.066667 -102.783333, 1219m
SRSC
00002148 James Henrickson 18722 1980-09-28
Mexico, Coahuila, Ca. 72 km WNW of Cuatro Cienegas, ca. 30 air km W of Villa Ocampo at Cuesta Zozaya, 1/3 way down the Cuesta, in limestone canyon., 27.233333 -102.7, 1500m