Acanthaceae GH: 00094088 Justicia coahuilana T. F. Daniel Mexico: Coahuila 4 miles west of Cuatro Cienegas, mouth of ca... I. M. Johnston 7162 1938-8-24
Adiantaceae GH: 02231543 Astrolepis cochisensis (Goodding) D. M. Benham & M. D. Windham Mexico: Coahuila 6 miles north of Hipolito I. M. Johnston 7235 1938-8-27
GH: 02231546 Astrolepis cochisensis (Goodding) D. M. Benham & M. D. Windham Mexico: Chihuahua 6 miles west of Piloncillo I. M. Johnston 7880a 1938-9-23
GH: 02231547 Astrolepis cochisensis (Goodding) D. M. Benham & M. D. Windham Mexico: Durango 23 miles N of Zaragoza I. M. Johnston 7792 1938-9-20
GH: 02231548 Astrolepis cochisensis (Goodding) D. M. Benham & M. D. Windham Mexico: Chihuahua 19 miles east of Jimenez I. M. Johnston 7853 1938-9-23
GH: 00311067 Myriopteris windhamii Grusz Mexico: Chihuahua I. M. Johnston 7978 1938-9-26
Agaricaceae FH: 00374174 Montagnites candollei Fries Mexico: Coahuila Silty flat in desert near road, 12 miles nor... I. M. Johnston 8005a 1938-8-29
Amaranthaceae GH: 00037156 Tidestromia tenella I. M. Johnston Mexico: Coahuila 8 miles south of Laguna del Rey, silty deser... I. M. Johnston 7822 1938-9-21
Asteraceae GH: 01237076 Artemisia carruthii Alph. Wood ex J. H. Carruth Mexico: Chihuahua Road from Jimenez to Camargo, via El Arroyo ... I. M. Johnston 7869 1938-9-24
GH: 01237176 Artemisia neomexicana Greene Mexico: Zacatecas Road from Sierra Hermosa southwest to Zacate... I. M. Johnston 7416 1938-9-4
GH: 00004453 Brickellia robinsoniana S. F. Blake Mexico: Zacatecas Road from Cardona southwest to Sierra Hermos... I. M. Johnston 7395 1938-9-4
GH: 00004743 Chaetopappa de Candolle Mexico: Coahuila Road from Monclova westward to beyond Cuatro... I. M. Johnston 7151 1938-8-24
GH: 00004743 Chaetopappa pulchella Shinners Mexico: Coahuila Road from Monclova westward to beyond Cuatro... I. M. Johnston 7151 1938-8-24
GH: 00417232 Chrysothamnus nauseosus ceruminosus (Durand & Hilgard) Hall & Clements USA: California Mouth of Sheep Creek, north edge of S. Gabri... I. M. Johnston 6985 1938-10-7
GH: 00417232 Ericameria nauseosa ceruminosa (Durand & Hilgard) G. L. Nesom & G. I. Baird USA: California Mouth of Sheep Creek, north edge of S. Gabri... I. M. Johnston 6985 1938-10-7
GH: 00008716 Haplopappus Cassini Mexico: Coahuila Road from Piedras Negras to Monclova, one mi... I. M. Johnston 7066 1938-8-22
GH: 00008716 Haplopappus johnstonii S. F. Blake Mexico: Coahuila Road from Piedras Negras to Monclova, one mi... I. M. Johnston 7066 1938-8-22
GH: 00008716 Machaeranthera johnstonii (Blake) Turner Mexico: Coahuila Road from Piedras Negras to Monclova, one mi... I. M. Johnston 7066 1938-8-22
GH: 00010960 Pectis incisifolia I. M. Johnston Mexico: Coahuila South of Laguna del Rey, road from Mohovano ... I. M. Johnston 7824 1938-9-21
GH: 00013091 Thelesperma ramosius S. F. Blake Mexico: Coahuila Road from Piedras Negras south to Monclova; ... I. M. Johnston 7059 1938-8-22
GH: 00013950 Viguiera phenax S. F. Blake Mexico: Chihuahua Road from Jimenez to Camargo, via El Arroyo ... I. M. Johnston 7868 1938-9-24
GH: 00014260 Zinnia oligantha I. M. Johnston Mexico: Coahuila Road from Mohovano northeast to Estancia Sta... I. M. Johnston 7821 1938-9-21
Boraginaceae GH: 02409989 Coldenia greggii (Torr. & A.Gray) A.Gray Mexico: Coahuila South of the pass at Fraile I. M. Johnston 7317 1938-9-1
GH: 02409993 Coldenia purpusii Brandegee Mexico: Zacatecas 21 miles south of Concepcion del Oro I. M. Johnston 7352 1938-9-2
GH: 01957862 Cryptantha albida (Kunth) I. M. Johnston USA: Texas 17 miles east of Marathon (on route US no 90... I. M. Johnston 7002 1938-8-20
GH: 01993160 Heliotropium angustifolium Torrey USA: Texas Shafter I. M. Johnston 7998 1938-9-27
GH: 01993733 Heliotropium greggii Torrey USA: Texas 17 miles east of Marathon I. M. Johnston 7001 1938-8-20
GH: 02061028 Oreocarya oblata (M. E. Jones) J. F. Macbride USA: Texas Paisano Pass, Brewster-Presidio County-line;... I. M. Johnston 7003 1938-8-19
GH: 02061022 Oreocarya oblata (M. E. Jones) J. F. Macbride USA: Texas west of Marfa I. M. Johnston 7000 1938-8-19
GH: 02143973 Tiquilia canescens (de Candolle) A. T. Richardson USA: Texas Meyers Creek west of Langtry I. M. Johnston 7004 1938-8
GH: 02409989 Tiquilia greggii (Torr. & A. Gray) A. T. Richardson Mexico: Coahuila South of the pass at Fraile I. M. Johnston 7317 1938-9-1
GH: 02144139 Tiquilia mexicana (S. Watson) A. T. Richardson USA: Texas Meyers Creek west of Langtry; near highway I. M. Johnston 1005 1938-8
GH: 02409993 Tiquilia purpusii (Brandegee) A. T. Richardson Mexico: Zacatecas 21 miles south of Concepcion del Oro I. M. Johnston 7352 1938-9-2
Brassicaceae GH: 01168014 Lepidium alyssoides mexicanum Rollins Mexico: [data not captured] I. M. Johnston 7637 1938-9-12
GH: 01168010 Lepidium alyssoides angustifolium (C. L. Hitchcock) Rollins Mexico: [data not captured] I. M. Johnston 7581 1938-9-11
GH: 01168257 Lepidium thurberi Wooton Mexico: [data not captured] I. M. Johnston 7976 1938-9-26
GH: 00019393 Nerisyrenia gracilis I. M. Johnston Mexico: San Luis Potosà Road from Matehuala north to San Miguel on t... I. M. Johnston 7583 1938-9-11
GH: 00019394 Nerisyrenia incana Rollins Mexico: Coahuila Road from Monclova westward to beyond Cuatro... I. M. Johnston 7130 1938-8-24
Caryophyllaceae GH: 00037723 Drymaria elata I. M. Johnston Mexico: Coahuila Road from Mohovano northeast to Estancia Sta... I. M. Johnston 7823 1938-9-21
GH: 00037722 Drymaria elata I. M. Johnston Mexico: Coahuila Road from Mohovano northeast to Estancia Sta... I. M. Johnston 7823 1938-9-21
GH: 00037731 Drymaria lyropetala I. M. Johnston Mexico: San Luis Potosà 2 miles south of Cedral, on road from Matehu... I. M. Johnston 7594 1938-9-11
Celastraceae GH: 00257468 Maytenus phyllanthoides Bentham Mexico: San Luis Potosà Road from San Luis Potosi to Matehuala (via ... I. M. Johnston 7508 1938-9-10
Chenopodiaceae GH: 00036896 Atriplex abata I. M. Johnston Mexico: San Luis Potosà San Miguel I. M. Johnston 7617 1938-9-12
GH: 00036897 Atriplex abata I. M. Johnston Mexico: San Luis Potosà San Miguel I. M. Johnston 7617 1938-9-12
GH: 00037248 Suaeda nigra (Rafinesque) J. F. Macbride Mexico: Coahuila 3 miles west of Cuatro Cienegas I. M. Johnston 7128 1938-8-24
GH: 00037247 Suaeda nigra (Rafinesque) J. F. Macbride Mexico: Coahuila 3 miles west of Cuatro Cienegas I. M. Johnston 7128 1938-8-24
GH: 00037237 Suaeda nigra (Rafinesque) J. F. Macbride Mexico: Coahuila 12 miles north of La Ventura (road from stat... I. M. Johnston 7650 1938-9-12
GH: 00037237 Suaeda nigrescens I. M. Johnston Mexico: Coahuila 12 miles north of La Ventura (road from stat... I. M. Johnston 7650 1938-9-12
GH: 00037237 Suaeda suffrutescens detonsa I. M. Johnston Mexico: Coahuila 12 miles north of La Ventura (road from stat... I. M. Johnston 7650 1938-9-12
GH: 00037248 Suaeda suffrutescens detonsa I. M. Johnston Mexico: Coahuila 3 miles west of Cuatro Cienegas I. M. Johnston 7128 1938-8-24
GH: 00037247 Suaeda suffrutescens detonsa I. M. Johnston Mexico: Coahuila 3 miles west of Cuatro Cienegas I. M. Johnston 7128 1938-8-24
Convolvulaceae GH: 01156026 Cuscuta applanata Engelmann Mexico: San Luis Potosà [data not captured] I. M. Johnston 7523 1938-9-11
GH: 01156089 Cuscuta glabrior (Engelmann) Yuncker Mexico: Coahuila [data not captured] I. M. Johnston 7324 1938-9-1
GH: 01156118 Cuscuta indecora Choisy Mexico: Coahuila [data not captured] I. M. Johnston 7012 1938-8-22
GH: 01164406 Ipomoea cristulata H. Hallier Mexico: [data not captured] I. M. Johnston 7871 1938-9-24
GH: 01164772 Ipomoea lindheimeri A. Gray Mexico: [data not captured] I. M. Johnston 7036 1938-8-22
Crassulaceae GH: 01988893 Villadia cucullata Rose Mexico: Coahuila South end of Carneros Pass I. M. Johnston 7656 1938-9-12
Euphorbiaceae GH: 00047770 Euphorbia Linnaeus Mexico: Coahuila Road from Monclova westward to beyond Cuatro... I. M. Johnston 7160 1938-8-24
GH: 00047770 Euphorbia crepitata L. C. Wheeler Mexico: Coahuila Road from Monclova westward to beyond Cuatro... I. M. Johnston 7160 1938-8-24
Fouquieriaceae GH: 00075339 Fouquieria shrevei I. M. Johnston Mexico: Coahuila 16 miles south of Laguna del Rey, gypsum fla... I. M. Johnston 7815 1938-9-20
Frankeniaceae GH: 00063211 Frankenia gypsophila I. M. Johnston Mexico: San Luis Potosà Road from Matehuala north to San Miguel on t... I. M. Johnston 7614 1938-9-12
Hydrophyllaceae GH: 00521993 Nama canescens C. L. Hitchcock Mexico: San Luis Potosà Road from San Luis Potosi to Matehuala (via ... I. M. Johnston 7510 1938-9-10
GH: 00093097 Nama hispida A. Gray Mexico: Coahuila Road from state-boundary, near La Ventura, n... I. M. Johnston 7633 1938-9-13
GH: 00093097 Nama hispida gypsicola I. M. Johnston Mexico: Coahuila Road from state-boundary, near La Ventura, n... I. M. Johnston 7633 1938-9-13
GH: 00521998 Nama johnstonii C. L. Hitchcock Mexico: Coahuila Road from Parras to Torreon (via Peña and V... I. M. Johnston 7740 1938-9-17
GH: 01166055 Nama serpylloides confertum I. M. Johnston Mexico: Coahuila Road from Monclova westward to beyond Cuatro... I. M. Johnston 7126 1938-8-25
GH: 01166055 Nama serpylloides velutina C. L. Hitchcock Mexico: Coahuila Road from Monclova westward to beyond Cuatro... I. M. Johnston 7126 1938-8-25
GH: 01166056 Nama serpylloides velutina C. L. Hitchcock Mexico: Coahuila Road from Piedras Negras south to Monclova. ... I. M. Johnston 7063 1938-8-22
GH: 00521998 Nama sp. Mexico: Coahuila Road from Parras to Torreon (via Peña and V... I. M. Johnston 7740 1938-9-17
GH: 00093097 Nama sp. Mexico: Coahuila Road from state-boundary, near La Ventura, n... I. M. Johnston 7633 1938-9-13
Loasaceae GH: 00003636 Mentzelia pachyrhiza I. M. Johnston Mexico: Coahuila 11 miles north of Parras I. M. Johnston 7717 1938-9-16
Lycoperdaceae FH: 00416337 Calvatia cyathiformis (Bosc) Morgan Mexico: Chihuahua Mexico: State of Chihuahua Road from Mestena... I. M. Johnston 1938-9
Malvaceae GH: 01130328 Hibiscus denudatus Bentham Mexico: Chihuahua Road from Laguna Palomas to Jimenez (via Esc... I. M. Johnston 7840 1938-9-22
Nyctaginaceae GH: 00037465 Acleisanthes undulatus (Fowler & Turner) R. A. Levin Mexico: Coahuila 4 miles west of Cuatro Cienegas, mouth of ca... I. M. Johnston 7159 1938-8-24
GH: 00037465 Selinocarpus undulatus B. A. Fowler & B. L. Turner Mexico: Coahuila 4 miles west of Cuatro Cienegas, mouth of ca... I. M. Johnston 7159 1938-8-24
Orchidaceae AMES: 02091278 Dichromanthus cinnabarinus (La Llave & Lexarza) Garay Mexico: Coahuila Sierra Gavia: 5 miles north of Saucillo I. M. Johnston 7221 1938-8-28
Podaxaceae FH: 00416850 Endoptychum agaricoides Czernajew Mexico: Chihuahua Mexico: State of Chihuahua. Road from MesteÃ... I. M. Johnston 1938-9
FH: 00416850 Endoptychum depressum R. Singer & A. H. Smith Mexico: Chihuahua Mexico: State of Chihuahua. Road from MesteÃ... I. M. Johnston 1938-9
FH: 00374335 Podaxis farlowii Massee Mexico: Chihuahua Road from Monclova south to Saltillo I. M. Johnston 8003 1938-8-30
FH: 00374335 Podaxis pistillaris (Linnaeus) Fries: Fries Mexico: Chihuahua Road from Monclova south to Saltillo I. M. Johnston 8003 1938-8-30
Portulacaceae GH: 00037529 Portulaca mundula I. M. Johnston Mexico: 5 miles west of Puerta del Carmen, just west... I. M. Johnston 7088 1938-8-24
GH: 00037529 Portulaca pilosa Linnaeus Mexico: 5 miles west of Puerta del Carmen, just west... I. M. Johnston 7088 1938-8-24
Pteridaceae GH: 00311067 Cheilanthes villosa Davenport ex Maxon Mexico: Chihuahua I. M. Johnston 7978 1938-9-26
Pucciniaceae FH: 00873582 Gymnosporangium clavipes Cooke & Peck USA: Massachusetts Wellfleet: [no additional data] I. M. Johnston 1938-7-4
FH: 01131770 Puccinia obliqua Berkeley & M. A. Curtis Mexico: Coahuila Torreon-Saltillo Highway; 55 miles west of S... I. M. Johnston 1938-9-15
FH: 00951755 Puccinia tumidipes Peck Mexico: Zacatecas Road from Sierra Hermosa southwest to Zacate... I. M. Johnston 1938-9-4
Rhamnaceae GH: 00051312 Condalia fasciculata I. M. Johnston Mexico: San Luis Potosà 2 miles south of Cedral, on road from Matehu... I. M. Johnston 7593 1938-9-11
GH: 00051317 Condalia viridis I. M. Johnston Mexico: Coahuila 11 miles south of Allende, on road from Pied... I. M. Johnston 7015 1938-8-23
Rosaceae GH: 00102844 Vauquelinia heterodon I. M. Johnston Mexico: Coahuila Road from Monclova south to Saltillo, Sierra... I. M. Johnston 7217 1938-8-27
GH: 00102933 Vauquelinia heterodon I. M. Johnston Mexico: Coahuila Road from Monclova south to Saltillo, Sierra... I. M. Johnston 7217 1938-8-27
Rutaceae GH: 01090069 Zanthoxylum fagara (Linnaeus) Sargent Mexico: [data not captured] I. M. Johnston 7219 1938-8-27
Scrophulariaceae GH: 00078604 Leucophyllum pruinosum I. M. Johnston Mexico: San Luis Potosà 11 miles south of Matehuala, rocky hillside I. M. Johnston 7569 1938-9-10
Secotiaceae FH: 00373660 Longula texensis (Berkeley & M. A. Curtis) Zeller Mexico: Chihuahua 30 miles S. E. of Hilaria-llano north of La ... I. M. Johnston 1938-9-24
Solanaceae GH: 00813355 Lycium berlandieri Dunal Mexico: Coahuila Road from state-boundary, near La Ventura, n... I. M. Johnston 7631 1938-9-12
GH: 00813356 Lycium berlandieri Dunal Mexico: Coahuila Road from Parras to Torreon (via Peña and V... I. M. Johnston 7713 1938-9-15
GH: 00813357 Lycium berlandieri Dunal Mexico: Zacatecas Road from Cardona southwest to Sierra Hermos... I. M. Johnston 7394 1938-9-3
GH: 00813360 Lycium berlandieri Dunal Mexico: Coahuila Torreon-Saltillo Highway; Desert 55 miles we... I. M. Johnston 7698 1938-9-15
GH: 00813361 Lycium berlandieri Dunal Mexico: Coahuila Road from Saltillo south to Concepcion del O... I. M. Johnston 7333 1938-9-1
GH: 00813347 Lycium berlandieri Dunal Mexico: San Luis Potosà Road from Matehuala north to San Miguel on t... I. M. Johnston 7587 1938-9-11
GH: 00813397 Lycium californicum interior F. Chiang Mexico: San Luis Potosà Road from Matehuala north to San Miguel on t... I. M. Johnston 7610 1938-9-11
GH: 00077175 Lycium leiospermum I. M. Johnston Mexico: San Luis Potosà Road from Matehuala north to San Miguel on t... I. M. Johnston 7611 1938-9-12
GH: 00813411 Lycium leiospermum I. M. Johnston Mexico: Coahuila Road from Saltillo south to Concepcion del O... I. M. Johnston 7336 1938-9-2
GH: 00077176 Lycium modestum I. M. Johnston Mexico: San Luis Potosà Road from Matehuala north to San Miguel on t... I. M. Johnston 7605 1938-9-12
GH: 00813445 Lycium pallidum Miers Mexico: Zacatecas Road from Sierra Hermosa southwest to Zacate... I. M. Johnston 7425 1938-9-4
GH: 00077176 Lycium parishii modestum (I. M. Johnston) F. Chiang Mexico: San Luis Potosà Road from Matehuala north to San Miguel on t... I. M. Johnston 7605 1938-9-12
A: 00813442 Lycium puberulum A. Gray Mexico: Coahuila Road from Mohovano northeast to Estancia Sta... I. M. Johnston 7820 1938-9-21
GH: 00077175 Lycium sp. Mexico: San Luis Potosà Road from Matehuala north to San Miguel on t... I. M. Johnston 7611 1938-9-12
Tulostomataceae FH: 00431688 Tulostoma albicans V. S. White Mexico: Coahuila [data not captured] I. M. Johnston 8004 1938-8-29
Verbenaceae GH: 01319544 Aloysia gratissima (Gillies & Hooker) Troncoso Mexico: Coahuila Road from Monclova westward to beyond Cuatro... I. M. Johnston 7181 1938-8-24
GH: 01319544 Aloysia gratissima schulziae (Standley) L. D. Benson Mexico: Coahuila Road from Monclova westward to beyond Cuatro... I. M. Johnston 7181 1938-8-24
GH: 01319576 Aloysia macrostachya (Torrey) Moldenke Mexico: Coahuila 28 miles south of Sabinas I. M. Johnston 7054 1938-8-22
GH: 01319590 Aloysia wrightii A. Heller Mexico: Coahuila road from Saltillo south to Concepcion del O... I. M. Johnston 7316 1938-9-1
GH: 01319598 Aloysia wrightii A. Heller Mexico: Zacatecas Road from Cardona southwest to Sierra Hermos... I. M. Johnston 7381 1938-9-3
GH: 01319619 Aloysia wrightii A. Heller Mexico: Coahuila Road from Parras to Torreon (via Peña and V... I. M. Johnston 7712 1938-9-15
