Displaying 1 - 50 out of 161 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Dyssodia micropoides (DC.) Loes. | J. Gregg s.n. | 05 Feb 1847 | United States of America | California | Bishop's Hill, near Monterey. | — | 2070354 |
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| Atriplex monilifera S.Watson | J. Gregg s.n. | 13 Apr 1847 | Mexico | Chihuahua | Bolton de Mapiri | isotype | 324291 |
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| Perezia nana A.Gray | J. Gregg 45 | 28 Apr 1847 | Mexico | Chihuahua | High dry valley near Chihuahua | isotype | 230980 |
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| Astragalus mollissimus var. earlei (Greene ex Rydb.) Tidestr. | J. Gregg s.n. | April 28 | Mexico | Chihuahua | Near Chihuahua | — | 01268129 | ||
| Astragalus wootonii E.Sheld. var. wootonii | J. Gregg s.n. | s.d. | Mexico | Chihuahua | SE of Chihuahua | — | 01268518 | ||
| Astragalus wootonii E.Sheld. var. wootonii | J. Gregg s.n. | 28 Apr 1847 | Mexico | Chihuahua | SE of Chihuahua | — | 01268506 | ||
| Berlandiera lyrata Benth. | J. Gregg s.n. | 23 Apr 1847 and 28 Apr 1847 | Mexico | Chihuahua | SE of Chihuahua | — | 1924520 |
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| Calliandra eriophylla Benth. var. eriophylla | J. Gregg s.n. | 28 Apr 1847 | Mexico | Chihuahua | Chihuahua Mun. Near Chihuahua | — | 00549227 |
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| Clavigera spinulosa A.Gray | J. Gregg s.n. | 28 Apr 1847 | Mexico | Chihuahua | High plain near Chihuahua | type | 167571 |
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| Dalea greggii A.Gray | J. Gregg s.n. | Oct 1852 | Mexico | Chihuahua | not a type | 1287706 | |||
| Riddellia arachnoidea A.Gray | J. Gregg 35 | 22 May 1847 | Mexico | Coahuila | Battlefield near Buenavista | type | 232799 |
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| Umbellularia parvifolia Hemsl. | J. Gregg 314 | 1848-1849 | Mexico | Coahuila | Saltillo | isotype | 259816 | ||
| Juniperus tetragona var. oligosperma Engelm. | J. Gregg 106s.n. | 1848-1849 | Mexico | Coahuila | Saltillo | isosyntype | 1326 |
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| Dalea greggii A.Gray | J. Gregg s.n. | 27 Mar 1847 | Mexico | Coahuila | Buenaventura. | isolectotype | 6996 |
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| Penstemon lanceolatus Benth. | J. Gregg s.n. | 22 May 1847 | Mexico | Coahuila | [Battlefield?-illegible], near Buenavista | — | 773225 |
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| Ptelea parvifolia A.Gray ex Hemsl. | J. Gregg s.n. | 22 May 1847 | Mexico | Coahuila | Battlefield near Buenavista | syntype | 887921 |
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| Teloxys cornuta Torr. | J. Gregg 390 | 31 Aug 1848 | Mexico | Coahuila | Near Saltillo | isosyntype | 990751 |
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| Senna demissa var. radicans (H.S.Irwin & Barneby) H.S.Irwin & Barneby | J. Gregg 244 | 1848-1849 | Mexico | Coahuila | Saltillo. | — | 554917 |
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| Mimosa texana (A.Gray) Small var. texana | J. Gregg s.n. | 09 Apr 1847 | Mexico | Coahuila | W of Saltillo | — | 551457 |
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| Erigeron spinosus Benth. | J. Gregg 266 | 1848 - 1849 | Mexico | Coahuila | Saltillo | — | 2096027 |
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| Juniperus flaccida Schltdl. var. flaccida | J. Gregg 106 | 1848-1849 | Mexico | Coahuila | Saltillo Mun. Saltillo | — | 345649 |
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| Mimosa zygophylla Benth. | J. Gregg s.n. | 09 Apr 1847 | Mexico | Coahuila | Saltillo Mun. | isosyntype | 2652 |
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| Acacia constricta Benth. | J. Gregg s.n. | 11 Apr 1847 | Mexico | Coahuila | Rocky highland, west of Castañuela | probable syntype | 1433 |
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| Acacia constricta Benth. | J. Gregg s.n. | 11 Apr 1847 | Mexico | Coahuila | Rocky highland, west of Castañuela | — | 1911757 |
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| Painteria elachistophylla (A.Gray ex S.Watson) Britton & Rose | J. Gregg s.n. | 09 Apr 1847 | Mexico | Coahuila | W of Saltillo | — | 01420630 |
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| Lantana macropoda Torr. | J. Gregg 454 | 1848 - 1849 | Mexico | Coahuila | Saltillo Mun. Saltillo | possible syntype | 1911830 |
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| Zephyranthes longituba Flory ex Flagg & G.Lom.Sm. | J. Gregg 84 | 1848-1849 | Mexico | Coahuila | Buena Vista [due S of… | paratype | 00319959 |
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| Agrostis canina L. | J. Gregg s.n. | 15 Apr 1849 | United States of America | Colorado | Valley of [illegible] | — | 1554558 |
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| Mimosa texana (A.Gray) Small var. texana | J. Gregg s.n. | 08 May 1847 | Mexico | Durango | Cadena ? | — | 01452824 | ||
| Arbutus tessellata P.D.Sørensen | J. Gregg 629 | 1848-49 | Mexico | Hidalgo | Mineral del Monte. | — | 1874922 |
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| Tetranthera glaucescens var. subsolitaria Meisn. | J. Gregg 639 | 1848-1849 | Mexico | Hidalgo | Real del Monte | syntype | 259815 | ||
| Engelmannia pinnatifida Nutt. | J. Gregg 64 | 22 May 1847 | Mexico | México | Tultitlán Mun. Buenavista. | — | 2074764 |
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| Atriplex canescens (Pursh) Nutt. | J. Gregg s.n. | 07 May 1847 | United States of America | New Mexico | Near Andabrazo Cr. XX from… | — | 3340016 |
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| Yucca elata (Engelm.) Engelm. | J. Gregg s.n. | 30 Apr 1847 | United States of America | New Mexico | Palmilla | — | 3574579 |
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| Amoreuxia wrightii A.Gray | J. Gregg s.n. | s.d. | United States of America | New Mexico | Rio Grande | — | 3938239 |
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| Porlieria angustifolia (Engelm.) A.Gray | J. Gregg s.n. | 1847 | United States of America | New Mexico | — | 3696091 |
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| Euphorbia villifera Scheele | J. Gregg 147 | s.d. | United States of America | New Mexico | — | 4019937 |
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| Chrysactinia mexicana A.Gray | J. Gregg s.n. | Apr 1847 | Mexico | Nuevo León | In valley west of Saltillo | syntype | 163381 |
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| Dichaetophora campestris A.Gray | J. Gregg 48 | 06 Feb 1847 | Mexico | Nuevo León | "Bishop's Hill" near Monterrey | type | 167855 |
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| Chamaesaracha sordida (Dunal) A.Gray | J. Gregg s.n. | 05 Feb 1847 | Mexico | Nuevo León | Ramparts, on "Bishop's Hill". Near… | — | 1423460 |
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| Lippia wrightii var. macrostachya Torr. | J. Gregg [822] | 28 May 1847 | Mexico | Nuevo León | West of Cerralbo | lectotype | 1365331 |
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| Boerhavia linearifolia A.Gray | J. Gregg 110 | 1848 - 1849 | Mexico | Nuevo León | Monterrey | — | 02361439 |
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| Giliastrum acerosum (A.Gray) Rydb. | J. Gregg s.n. | 22 May 1847 | Mexico | Nuevo León | Battlefield, near Buenavista | — | 3299948 |
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| Mimosa malacophylla A.Gray | J. Gregg s.n. | 27 May 1847 | Mexico | Nuevo León | Monterrey Mun. Valley NE of… | isosyntype | 2566 |
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| Cassia greggii A.Gray | J. Gregg s.n. | 25 May 1847&28 Jul 1847 | Mexico | Nuevo León | Monterrey Mun. W of Rinconada,… | isotype | 3634 |
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| Sedum greggii Hemsl. | J. Gregg 635 | 1848-49 | Mexico | San Luis Potosí | Real del Monte. | isotype | 388051 |
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| Lesquerella fendleri (A.Gray) S.Watson | J. Gregg s.n. | Feb 1847 | United States of America | Texas | Jim Hogg Co. Aguanueva | — | 3186410 |
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| Asclepias linearis Scheele | J. Gregg s.n. | May 1847 | United States of America | Texas | west of Mata-Moros | — | 03517413 |
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| Amoreuxia wrightii A.Gray | J. Gregg s.n. | 15 Oct 1852 | United States of America | Texas | Val Verde Co. mouth of… | — | 3938242 |
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| Hermannia texana A.Gray | J. Gregg 1- | 04 May 1847 | United States of America | Texas | Smith Co. "Walnut Grove" | — | 3878452 |
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