Displaying 51 - 100 out of 161 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Euphorbia pilosula Engelm. ex Boiss. | J. Gregg 792 | 1848-1849 | Mexico | — | Tiristirina | isotype | 263272 |
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| Euphorbia Lanj. | J. Gregg | 29 May 1847 | Mexico | — | Gemalho (spelling?) | — | 263236 |
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| Baileya multiradiata Harv. & A.Gray | J. Gregg s.n. | 21 Apr 1847 & 28 Apr 1847 | Mexico | — | Valley of Conchos (21 Apr… | type | 162446 |
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| Anisacanthus insignis A.Gray | J. Gregg 504 | 02 Apr 1847 | Mexico | — | Valley of Río Conchos (below… | lectotype | 311945 |
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| Helenium ooclinium A.Gray | J. Gregg 27 | 11 May 1847 | Mexico | — | Valley of Nazos, Bolson de… | isotype | 179038 |
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| Phoradendron lanceolatum Engelm. ex A.Gray | J. Gregg s.n. | 11 Feb 1847 | Mexico | — | Near Rinconada | isotype | 285297 |
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| Atriplex greggii S.Watson | J. Gregg 462 | 1848-1849 | Mexico | — | Cerro Bavor {?illegible] | isotype | 324281 |
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| Solanum elaeagnifolium Cav. | J. Gregg s.n. | May 11/47 | Mexico | — | In elsewhere for quality, or… | — | 00751082 |
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| Solanum elaeagnifolium Cav. | J. Gregg s.n. | April 10/1847 | Mexico | — | Indonifie, Stevnudatery - Castañuela (1… | — | 00751083 |
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| Solanum triquetrum Cav. | J. Gregg s.n. | 10 May 1847 | Mexico | — | San Sebastian, in valley of… | — | 00820786 |
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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 bauhinioides (A.Gray) H.S.Irwin & Barneby | J. Gregg s.n. | s.d. | Mexico | — | Monterrey. | — | 554806 |
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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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| Juglans rupestris Engelm. | J. Gregg s.n. | 03 Jul 1852 | Mexico | — | [country Mexico?] | probable syntype | 1583809 |
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| Erioneuron pilosum (Buckley) Nash var. pilosum | J. Gregg 205 | 1848 - 1849 | Mexico | — | Saltillo. | — | 1690171 |
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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 | ||
| Dalea bicolor var. argyrea (A.Gray) Barneby | J. Gregg s.n. | 19 May 1887 | Mexico | — | Plain near Castamuela | — | 01278045 | ||
| Dalea lutea (Cav.) Willd. var. lutea | J. Gregg 388 | 1848 - 1849 | Mexico | — | — | 01279726 |
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| Dalea pogonathera A.Gray var. pogonathera | J. Gregg 461 | 1848 - 1849 | Mexico | — | Saltillo | — | 01305271 | ||
| 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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| Mimosa texana (A.Gray) Small var. texana | J. Gregg s.n. | 08 May 1847 | Mexico | Durango | Cadena ? | — | 01452824 | ||
| Lippia wrightii var. macrostachya Torr. | J. Gregg [822] | 28 May 1847 | Mexico | Nuevo León | West of Cerralbo | lectotype | 1365331 |
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| Setaria parviflora (Poir.) Kerguélen | J. Gregg s.n. | 29 May 1847 | Mexico | — | Near Cerralbo [Cerralvo]. | — | 1815973 |
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| Symphyotrichum subulatum (Michx.) G.L.Nesom | J. Gregg | 22 Mar 1847 | — | — | [No locality data on label;… | — | 1869420 |
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| Berlandiera lyrata Benth. | J. Gregg s.n. | 23 Apr 1847 and 28 Apr 1847 | Mexico | Chihuahua | SE of Chihuahua | — | 1924520 |
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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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| Chara contraria A.Braun ex Kütz. | J. Gregg s.n. | 08 May 1847 | Mexico | — | Cadena | — | 02012680 |
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| Erigeron spinosus Benth. | J. Gregg 266 | 1848 - 1849 | Mexico | Coahuila | Saltillo | — | 2096027 |
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| Lantana macropoda Torr. | J. Gregg s.n. | May 1847 | Mexico | — | possible syntype | 1911826 |
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| Polypogon viridis (Gouan) Breistr. | J. Gregg s.n. | 20 May 1847 | Mexico | — | San Juan de la Vaqueria. | — | 02212732 |
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| Gaillardia pinnatifida Torr. | J. Gregg s.n. | 29 Apr 1847 | Unknown | — | Rich valley near San Pablo | — | 02240222 |
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| Boerhavia linearifolia A.Gray | J. Gregg 110 | 1848 - 1849 | Mexico | Nuevo León | Monterrey | — | 02361439 |
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| Arbutus tessellata P.D.Sørensen | J. Gregg 629 | 1848-49 | Mexico | Hidalgo | Mineral del Monte. | — | 1874922 |
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| Castela erecta Turpin | J. Gregg | May 4/47 | — | — | S.W. of Quapiquilla | — | 2515803 |
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| Rhus microphylla Engelm. | J. Gregg s.n. | April 16/47 | — | — | 10 X from Saltillo to… | — | 2555574 |
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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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| Nerisyrenia camporum (A.Gray) Greene | J. Gregg s.n. | 08 May 1847 | Unknown | — | Cadena | — | 3187889 |
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| Carlowrightia torreyana Wassh. | J. Gregg s.n. | 28 Jan 1847 | — | — | Monterey | — | 3601485 |
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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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| 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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| Hopia obtusa (Kunth) Zuloaga & Morrone | J. Gregg s.n. | 15 May 1847 | United States of America | Texas | — | 1728753 |
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| Nerisyrenia camporum (A.Gray) Greene | J. Gregg s.n. | 12 Apr 1847 | United States of America | Texas | west of Parras | — | 3187836 |
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| Leucophyllum frutescens (Berland.) I.M.Johnst. | J. Gregg s.n. | s.d. | United States of America | Texas | — | 3284485 |
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| Muhlenbergia utilis (Torr.) Hitchc. | J. Gregg s.n. | 16 May 1847 | United States of America | Texas | Pecos | — | 1759976 |
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