Amaranthaceae GH: 00036997 Amaranthus Linnaeus Mexico: Mouth of the Rio Grande Josiah Gregg 1847-12-17
GH: 00036997 Amaranthus greggii S. Watson Mexico: Mouth of the Rio Grande Josiah Gregg 1847-12-17
Asclepiadaceae GH: 00062393 Asclepias brachystephana Engelmann ex Torrey Mexico: Coahuila West of Saltillo Josiah Gregg 1847-4-9
GH: 00375455 Asclepias galioides Kunth Mexico: From rich valley near la Cadena Josiah Gregg 1847-5-8
GH: 00375455 Asclepias subverticillata (A. Gray) Vail Mexico: From rich valley near la Cadena Josiah Gregg 1847-5-8
GH: 00375455 Asclepias verticillata Linnaeus Mexico: From rich valley near la Cadena Josiah Gregg 1847-5-8
GH: 00267321 Gonolobus productus Torrey Mexico: Durango Cadena Josiah Gregg 1847-5-8
GH: 00267321 Matelea producta (Torrey) Woodson Mexico: Durango Cadena Josiah Gregg 1847-5-8
Asteraceae GH: 00022792 Acourtia nana (A. Gray) Reveal & R. M. King Mexico: Chihuahua High dry valley near Chihuahua Josiah Gregg 45 1847-4-28
GH: 00261702 Bahia absinthifolia Bentham Mexico: Chihuahua Cadena Josiah Gregg 19 1847-5-8
GH: 00261702 Bahia dealbata A. Gray Mexico: Chihuahua Cadena Josiah Gregg 19 1847-5-8
GH: 00002442 Baileya pleniradiata Harvey & A. Gray Mexico: Chihuahua Valley of Noros near San Lorenzo, Bolson de ... Josiah Gregg 37 1847-5-11
GH: 00002444 Baileya pleniradiata Harvey & A. Gray Mexico: Near Jasalito Josiah Gregg 28 1847-4-17
GH: 00004794 Chrysactinia mexicana A. Gray Mexico: Coahuila Dry valley W. of Saltillo Josiah Gregg 656 1847-4-9
GH: 00004795 Chrysactinia mexicana A. Gray Mexico: Coahuila High ground near Buenavista Josiah Gregg 656 1847-5-22
GH: 00004459 Clavigera spinulosa A. Gray Mexico: Chihuahua Josiah Gregg 1847-4-28
GH: 00006223 Cosmidium simplicifolium A. Gray Mexico: Buena Vista Josiah Gregg 1847
GH: 00006398 Diplostemma bellioides A. Gray Mexico: Buena Vista battle field, about 10 miles ne.... Josiah Gregg 1847-3
GH: 00013100 Dyssodia greggii (A. Gray) B. L. Robinson Mexico: Coahuila Near Buena Vista Josiah Gregg 7 1847-3-27
GH: 00009288 Dyssodia micropodoides (de Candolle) Loesener Mexico: Nuevo León Bishops Hill near Monterey Josiah Gregg 1847-2-5
GH: 00013100 Dyssodia setifolia radiata (A. Gray) Strother Mexico: Coahuila Near Buena Vista Josiah Gregg 7 1847-3-27
GH: 00008126 Flaveria longifolia A. Gray Mexico: Coahuila Northeast of Parras, near Cienega Grande Josiah Gregg 1847-5-18
GH: 00008126 Flaveria oppositifolia (de Candolle) Rydberg Mexico: Coahuila Northeast of Parras, near Cienega Grande Josiah Gregg 1847-5-18
GH: 00013884 Gymnolomia tenuifolia Bentham & Hooker f. Mexico: Valley west of Mapimi Josiah Gregg 21 1847-5-9
GH: 00008635 Haploësthes greggii A. Gray Mexico: Coahuila Near Cienega Grande Josiah Gregg 68 1847-5-18
GH: 00008772 Helenium microcephalum de Candolle Mexico: Coahuila Valley of Naras, Bolsom de Mapimi Josiah Gregg 27 1847-5-11
GH: 00008772 Helenium ooclinium A. Gray Mexico: Coahuila Valley of Naras, Bolsom de Mapimi Josiah Gregg 27 1847-5-11
GH: 00008772 Helenium quadridentatum Labillardiere Mexico: Coahuila Valley of Naras, Bolsom de Mapimi Josiah Gregg 27 1847-5-11
GH: 00008834 Helianthus laciniatus A. Gray Mexico: Coahuila Valley west of San Lorenzo near Parros Josiah Gregg 24 1847-5-14
GH: 00008835 Helianthus laciniatus A. Gray Mexico: Valley of Noras, Bolson de Mapimi Josiah Gregg 29 1847-5-11
GH: 00013884 Heliomeris tenuifolia A. Gray Mexico: Valley west of Mapimi Josiah Gregg 21 1847-5-9
GH: 00009288 Hymenatherum gnaphalodes A. Gray Mexico: Nuevo León Bishops Hill near Monterey Josiah Gregg 1847-2-5
GH: 00066663 Packera tampicana (de Candolle) C. Jeffrey Mexico: Baja California Norte Near Santa Rosalia, low valley of the Rio de... Josiah Gregg 11 1847-4-21
GH: 00010900 Parthenium confertum A. Gray Mexico: Coahuila Plain N. W. of Parras Josiah Gregg 25 1847-5-14
GH: 00010900 Parthenium confertum confertum Mexico: Coahuila Plain N. W. of Parras Josiah Gregg 25 1847-5-14
GH: 00010915 Pectis angustifolia tenella (de Candolle) D. J. Keil Mexico: Tamaulipas East of Mier Josiah Gregg 62 1847-5-31
GH: 00022792 Perezia nana A. Gray Mexico: Chihuahua High dry valley near Chihuahua Josiah Gregg 45 1847-4-28
GH: 00011411 Porophyllum greggii A. Gray Mexico: Coahuila Valley of Parras Josiah Gregg 1847-4-11
GH: 00011411 Porophyllum scoparium A. Gray Mexico: Coahuila Valley of Parras Josiah Gregg 1847-4-11
GH: 00011496 Psilostrophe gnaphalodes de Candolle Mexico: Coahuila Dry ridge, battlefield near Buenavista Josiah Gregg 35 1847-5-22
GH: 00011497 Psilostrophe gnaphalodes de Candolle Mexico: Coahuila Saltillo. Near Ojo de Sant Bernardo Josiah Gregg 318 1847-5-6
GH: 00257531 Psilostrophe gnaphalodes de Candolle Mexico: Coahuila Saltillo. Near Ojo de Sant Bernardo Josiah Gregg 34 1847-5-6
GH: 00011497 Riddellia arachnoidea A. Gray Mexico: Coahuila Saltillo. Near Ojo de Sant Bernardo Josiah Gregg 318 1847-5-6
GH: 00011496 Riddellia arachnoidea A. Gray Mexico: Coahuila Dry ridge, battlefield near Buenavista Josiah Gregg 35 1847-5-22
GH: 00257531 Riddellia arachnoidea A. Gray Mexico: Coahuila Saltillo. Near Ojo de Sant Bernardo Josiah Gregg 34 1847-5-6
GH: 00008772 Rosilla Mexico: Coahuila Valley of Naras, Bolsom de Mapimi Josiah Gregg 27 1847-5-11
GH: 00066663 Senecio greggii Rydberg Mexico: Baja California Norte Near Santa Rosalia, low valley of the Rio de... Josiah Gregg 11 1847-4-21
GH: 00066663 Senecio tampicanus de Candolle Mexico: Baja California Norte Near Santa Rosalia, low valley of the Rio de... Josiah Gregg 11 1847-4-21
GH: 00013180 Shinnersia rivularis (A. Gray) King & H. Robinson Mexico: Nuevo León Spring Branch - Monterey Josiah Gregg 50 1847-1-28
GH: 00012407 Simsia calva (A. Gray & Engelmann) A. Gray Mexico: Bishops Hill near Monterey Josiah Gregg 47 1847-2-6
GH: 00012407 Simsia calva subaristata (Gray) S. F. Blake Mexico: Bishops Hill near Monterey Josiah Gregg 47 1847-2-6
GH: 00012407 Simsia subaristata A. Gray Mexico: Bishops Hill near Monterey Josiah Gregg 47 1847-2-6
GH: 00006223 Thelesperma subsimplicifolium A. Gray Mexico: Buena Vista Josiah Gregg 1847
GH: 00013100 Thymophylla greggii A. Gray Mexico: Coahuila Near Buena Vista Josiah Gregg 7 1847-3-27
GH: 00013158 Townsendia mexicana A. Gray Mexico: Saltillo Josiah Gregg 1847-3
GH: 00013180 Trichocoronis rivularis A. Gray Mexico: Nuevo León Spring Branch - Monterey Josiah Gregg 50 1847-1-28
GH: 00013182 Trichocoronis rivularis A. Gray Mexico: Nuevo León West of Cerralvo Josiah Gregg 51 1847-5-28
GH: 00013321 Varilla A. Gray Mexico: Valley east of Parras Josiah Gregg 9 1847-4-11
GH: 00013321 Varilla mexicana A. Gray Mexico: Valley east of Parras Josiah Gregg 9 1847-4-11
GH: 00014263 Zinnia pumila A. Gray Mexico: Coahuila Near San Juan de la Vaqueria Josiah Gregg 722 1847-5-20
Boraginaceae GH: 00097837 Heliotropium confertifolium (Torrey) Torrey ex A. Gray Mexico: Nuevo León east of Cerralvo ["ca 45 mi NE of Monterey" ... Josiah Gregg 1847-5-29
GH: 00097837 Heliotropium confertifolium coldenioides I. M. Johnston Mexico: Nuevo León east of Cerralvo ["ca 45 mi NE of Monterey" ... Josiah Gregg 1847-5-29
GH: 00097537 Heliotropium greggii Torrey Mexico: Tamaulipas Valley of Conchos, near Santa Rosalia Josiah Gregg 1847-5-1
GH: 00097837 Heliotropium limbatum confertifolium Torrey Mexico: Nuevo León east of Cerralvo ["ca 45 mi NE of Monterey" ... Josiah Gregg 1847-5-29
Brassicaceae GH: 00263001 Lesquerella argyraea diffusa (Rollins) Rollins & E. A. Shaw Mexico: Coahuila Beunavista Josiah Gregg 1847-2-14
GH: 00263001 Physaria argyraea diffusa (Rollins) O'Kane & Al-Shehbaz Mexico: Coahuila Beunavista Josiah Gregg 1847-2-14
GH: 00019723 Synthlipsis greggii A. Gray Mexico: Coahuila Saltillo: Near Saltillo Josiah Gregg 1847-1-4
GH: 00263001 Vesicaria argyraea A. Gray Mexico: Coahuila Beunavista Josiah Gregg 1847-2-14
Caesalpiniaceae GH: 00062318 Caesalpinia oxycarpa (A. Gray) Fisher Mexico: Nuevo León From Bishops hill near Monterey Josiah Gregg 1847-2-9
GH: 00274794 Cassia bauhinioides A. Gray Mexico: near Santa Rosalia Josiah Gregg 1847-5-2
GH: 00263327 Cercidium floridum Bentham ex A. Gray Mexico: Retama, west of Matamoras June 5 and west of... Josiah Gregg 1847
GH: 00263328 Cercidium floridum Bentham ex A. Gray Mexico: Retama. Monterey to Matamoras & Presidio Rio... Josiah Gregg 1847
GH: 00263327 Cercidium macrum I. M. Johnston Mexico: Retama, west of Matamoras June 5 and west of... Josiah Gregg 1847
GH: 00263328 Cercidium macrum I. M. Johnston Mexico: Retama. Monterey to Matamoras & Presidio Rio... Josiah Gregg 1847
GH: 00263328 Cercidium sp. Mexico: Retama. Monterey to Matamoras & Presidio Rio... Josiah Gregg 1847
GH: 00062318 Hoffmannseggia oxycarpa Bentham Mexico: Nuevo León From Bishops hill near Monterey Josiah Gregg 1847-2-9
GH: 00062318 Hoffmannseggia oxycarpa oxycarpa Mexico: Nuevo León From Bishops hill near Monterey Josiah Gregg 1847-2-9
GH: 00263327 Parkinsonia texana macra (I. M. Johnston) Isely Mexico: Retama, west of Matamoras June 5 and west of... Josiah Gregg 1847
GH: 00263328 Parkinsonia texana macra (I. M. Johnston) Isely Mexico: Retama. Monterey to Matamoras & Presidio Rio... Josiah Gregg 1847
GH: 00274794 Senna bauhinioides (A. Gray) Irwin & Barneby Mexico: near Santa Rosalia Josiah Gregg 1847-5-2
Celastraceae GH: 00936470 Mortonia greggii A. Gray Mexico: Nuevo León Near Rinconada Josiah Gregg 1847-1-5
Chenopodiaceae GH: 00036902 Atriplex monilifera S. Watson Mexico: Coahuila Dried up bed of lake in Bolson de Mapimi Josiah Gregg 1847-4-13
Euphorbiaceae GH: 00248076 Acalypha hederacea Torrey Mexico: Nuevo León West of Monterey [Monterrey] Josiah Gregg 1847-5-25
GH: 00248077 Acalypha hederacea Torrey Mexico: Nuevo León Near Santa Catarina Josiah Gregg 245 1847-5-25
GH: 00248076 Acalypha monostachya Cavanilles Mexico: Nuevo León West of Monterey [Monterrey] Josiah Gregg 1847-5-25
GH: 00248077 Acalypha monostachya Cavanilles Mexico: Nuevo León Near Santa Catarina Josiah Gregg 245 1847-5-25
GH: 00061683 Bernardia fasciculata S. Watson Mexico: Plains southwest of San Pablo Josiah Gregg 1847-4-22
GH: 00021478 Chamaesyce cinerascens (Engelmann) Small Mexico: Nuevo León "Bishops Hill" (ramparts) near Monterey Josiah Gregg 1847-2-5
GH: 00021478 Euphorbia cinerascens Engelmann Mexico: Nuevo León "Bishops Hill" (ramparts) near Monterey Josiah Gregg 1847-2-5
GH: 00061683 Tetracoccus fasciculatus (S. Watson) Croizat Mexico: Plains southwest of San Pablo Josiah Gregg 1847-4-22
Fabaceae GH: 00053649 Dalea greggii A. Gray Mexico: Coahuila near Buenavista Josiah Gregg s.n. 1847-3-27
GH: 00053649 Parosela greggii (A. Gray) A. Heller Mexico: Coahuila near Buenavista Josiah Gregg s.n. 1847-3-27
Gentianaceae GH: 00415241 Centaurium arizonicum (A. Gray) A. Heller Mexico: Nuevo León Ojo caliente [spring near Monterrey] Josiah Gregg 1847-2-12
GH: 00072253 Eustoma russellianum gracile Engelmann ex A. Gray Mexico: Papagallos Josiah Gregg 1847-5-28
GH: 00415241 Zeltnera arizonica (A. Gray) G. Mansion Mexico: Nuevo León Ojo caliente [spring near Monterrey] Josiah Gregg 1847-2-12
Loranthaceae GH: 00035695 Phoradendron greggii Trelease Mexico: Rinconada, between Monterrey and Saltillo Josiah Gregg 31 1847-1-5
GH: 00035696 Phoradendron greggii Trelease Mexico: Rinconada, between Monterrey and Saltillo Josiah Gregg 254 1847-2-11
GH: 00035696 Phoradendron tomentosum tomentosum Mexico: Rinconada, between Monterrey and Saltillo Josiah Gregg 254 1847-2-11
Malpighiaceae GH: 00037800 Callaeum septentrionale (A. Jussieu) D. M. Johnson Mexico: Nuevo León Lowlands near Monterrey Josiah Gregg 1847-1-30
GH: 00037800 Hiraea greggii S. Watson Mexico: Nuevo León Lowlands near Monterrey Josiah Gregg 1847-1-30
GH: 00037800 Mascagnia septentrionalis Niedenzu Mexico: Nuevo León Lowlands near Monterrey Josiah Gregg 1847-1-30
Mimosaceae GH: 00058205 Acacia ataxacantha de Candolle Mexico: Coahuila West of Patos Josiah Gregg 1847-4-10
GH: 00254210 Acacia constricta Bentham Mexico: Coahuila East of Mier, May 31/47 (also near Castanuel... Josiah Gregg 1847
GH: 00058205 Acacia greggii A. Gray Mexico: Coahuila West of Patos Josiah Gregg 1847-4-10
GH: 00589919 Acacia roemeriana Scheele Mexico: Chihuahua Monterey May 25 and west of Camaijo May 31/4... Josiah Gregg 1847-5
GH: 00058205 Acacia sp. Mexico: Coahuila West of Patos Josiah Gregg 1847-4-10
GH: 00589920 Acacia sp. Mexico: near Ojito Josiah Gregg 1847-4-23
GH: 00589920 Acacia wrightii Bentham Mexico: near Ojito Josiah Gregg 1847-4-23
GH: 00589919 Acacia wrightii Bentham Mexico: Chihuahua Monterey May 25 and west of Camaijo May 31/4... Josiah Gregg 1847-5
GH: 00069249 Havardia pallens (Bentham) Britton & Rose Mexico: Nuevo León East of Papagallo Josiah Gregg 1847-5-28
GH: 00069248 Havardia pallens (Bentham) Britton & Rose Mexico: Nuevo León East of Rinconada Josiah Gregg 1847-5-25
GH: 00065795 Leucaena glauca Bentham Mexico: East of Rinconada Josiah Gregg 1847-5-25
GH: 00065796 Leucaena greggii S. Watson Mexico: From near Rinconada Josiah Gregg 1847-1-5
GH: 00065795 Leucaena greggii S. Watson Mexico: East of Rinconada Josiah Gregg 1847-5-25
GH: 00065134 Mimosa malacophylla A. Gray Mexico: Valley northeast of Monterey Josiah Gregg 1847-5-27
GH: 00069248 Pithecellobium brevifolium Bentham Mexico: Nuevo León East of Rinconada Josiah Gregg 1847-5-25
GH: 00069249 Pithecellobium brevifolium Bentham Mexico: Nuevo León East of Papagallo Josiah Gregg 1847-5-28
GH: 00065795 Ryncholeucaena greggii Britton & Rose Mexico: East of Rinconada Josiah Gregg 1847-5-25
GH: 00065796 Ryncholeucaena greggii Britton & Rose Mexico: From near Rinconada Josiah Gregg 1847-1-5
GH: 00254210 Vachellia constricta (Bentham) Seigler & Ebinger Mexico: Coahuila East of Mier, May 31/47 (also near Castanuel... Josiah Gregg 1847
Oleaceae GH: 00073739 Forestiera angustifolia Torrey Mexico: Nuevo León Josiah Gregg 1847-2-9
GH: 00073739 Forestiera phillyreoides spathulifolia Torrey Mexico: Nuevo León Josiah Gregg 1847-2-9
GH: 00073811 Fraxinus greggii A. Gray Mexico: Low grounds near Rinconada Josiah Gregg 1847-1-5
Onagraceae GH: 00071785 Oenothera greggii A. Gray Mexico: from hill, SE of Pelayo Josiah Gregg 1847-5-8
GH: 00071785 Oenothera greggii typica Munz Mexico: from hill, SE of Pelayo Josiah Gregg 1847-5-8
GH: 00071789 Oenothera macrosceles A. Gray Mexico: Vara de San José, Ojo de San Bernardo and P... Josiah Gregg 1847-5-8
Polygalaceae GH: 00025920 Polygala glandulosa Kunth Mexico: Cerralbo Josiah Gregg 1847-5-29
GH: 00025920 Polygala greggii S. Watson Mexico: Cerralbo Josiah Gregg 1847-5-29
Polygonaceae GH: 00036357 Eriogonum greggii Torrey & A. Gray Mexico: Nuevo León Near San Juan de la Vaqueria Josiah Gregg 719 1847-5-20
Rhamnaceae GH: 00056380 Ceanothus greggii A. Gray Mexico: Coahuila Battlefield of Buenavista [north of Saltillo... Josiah Gregg [354] 1847-3-27
GH: 00056380 Ceanothus pauciflorus de Candolle Mexico: Coahuila Battlefield of Buenavista [north of Saltillo... Josiah Gregg [354] 1847-3-27
Rubiaceae GH: 00056966 Hedyotis palmeri palmeri Mexico: Cevralbo Josiah Gregg 1847-5-29
GH: 00056966 Houstonia longipes S. Watson Mexico: Cevralbo Josiah Gregg 1847-5-29
Rutaceae GH: 00112814 Casimiroa greggii (S. Watson) F. Chiang Mexico: Nuevo León Walnut grove near Monterey Josiah Gregg 1847-2-7
GH: 00044187 Ptelea parvifolia A. Gray ex Hemsley Mexico: Battlefield near Buenavista Josiah Gregg 1847-5-22
GH: 00306580 Rutosma texana A. Gray Mexico: Nuevo León From Bishop's Hill near Monterey Josiah Gregg 1847-2-6
GH: 00112814 Sargentia greggii S. Watson Mexico: Nuevo León Walnut grove near Monterey Josiah Gregg 1847-2-7
Simaroubaceae GH: 00306590 Castela erecta texana (Torrey & A. Gray) Cronquist Mexico: Near Rinconada Josiah Gregg 1847-1-23
Solanaceae GH: 00815334 Nicotiana obtusifolia Mertens & Galeotti Mexico: Valley of Mazas; Bolson de [illegible]; R Oj... Josiah Gregg 1847-5-6
