Displaying 1 - 50 out of 3921 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Myriopteris rufa Fée | R. D. Worthington 27 | 02 Sep 1977 | United States of America | Texas | Jeff Davis Co. Davis Mts.… | — | 3494818 |
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| Lithospermum incisum Lehm. | R. D. Worthington 931 | 27 Mar 1983 | United States of America | Texas | El Paso Co. Franklin Mts.,… | — | 3244212 |
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| Colubrina texensis (Torr. & A.Gray) A.Gray | R. D. Worthington 1201 | 23 May 1984 | United States of America | Texas | Val Verde Co. 3.5 rd.… | — | 3755549 |
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| Boerhavia spicata Choisy | R. D. Worthington 1243 | 25 Aug 1984 | United States of America | New Mexico | Luna Co. Victorio Mts., 3… | — | 3371826 |
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| Bouteloua eriopoda (Torr.) Torr. | R. D. Worthington 1298 | 25 Aug 1984 | United States of America | New Mexico | Luna Co. Victorio Mtns.; 3… | — | 1643265 |
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| Hieracium fendleri Sch.Bip. | R. D. Worthington 1322 | 09 Jun 1985 | United States of America | New Mexico | Grant Co. Black Range, Wright's… | — | 2908819 |
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| Pectis filipes Harv. & A.Gray | R. D. Worthington 1504 | 07 Sep 1986 | United States of America | New Mexico | Luna Co. Potrillo Mts., West… | — | 3127028 |
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| Myriopteris alabamensis (Buckley) Grusz & Windham | R. D. Worthington 4975 | 16 Aug 1979 | United States of America | Texas | Presidio Co. Sierra Vieja Mts.,… | — | 3493405 |
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| Cheilanthes parvifolia (R.M.Tryon) Mickel | R. D. Worthington 5262 | 22 Sep 1979 | United States of America | Texas | El Paso Co. Franklin Mts.,… | — | 3484592 |
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| Argyrochosma limitanea (Maxon) Windham var. limitanea | R. D. Worthington 5321 | 23 Sep 1979 | United States of America | New Mexico | Luna Co. Florida Mts., Mahoney… | — | 3483996 |
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| Pellaea intermedia Mett. ex Kuhn | R. D. Worthington 5382 | 06 Oct 1979 | United States of America | Texas | Presidio Co. Sierra Vieja Mts.,… | — | 3496261 |
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| Pellaea atropurpurea (L.) Link | R. D. Worthington 5611 | 29 Mar 1980 | United States of America | New Mexico | Doña Ana Co. Organ Mts.,… | — | 3495745 |
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| Streptanthus carinatus C.Wright ex A.Gray | R. D. Worthington 5766 | 15 Apr 1980 | United States of America | New Mexico | Doña Ana Co. 1.6 mi.… | — | 3232650 |
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| Mannia pilosa (Hornem.) Frye & L.Clark | R. D. Worthington 6927 | 11 Apr 1981 | United States of America | New Mexico | Doña Ana Co. Organ Mts.,… | — | 268807 | ||
| Peridermium ephedrae C.M.Cooke | R. D. Worthington 7171 | 20 Jun 1981 | United States of America | Texas | El Paso Co. Franklin Mts.,… | — | 3012284 |
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| Myriopteris aurea (Poir.) Grusz & Windham | R. D. Worthington 7182 | 27 Jun 1981 | United States of America | Texas | Jeff Davis Co. Davis Mts.,… | — | 3493423 |
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| Myriopteris rufa Fée | R. D. Worthington 7247 | 11 Jul 1981 | United States of America | Texas | Jeff Davis Co. Davis Mts.,… | — | 3494793 |
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| Dryopteris filix-mas (L.) Schott | R. D. Worthington 7392 | 19 Jul 1981 | United States of America | New Mexico | Otero Co. Sacramento Mts., Bluff… | — | 3551093 |
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| Cyperus uniflorus Torr. & Hook. | R. D. Worthington 7449 | 23 Jul 1981 | United States of America | Texas | Chambers Co. roadside park along… | — | 2821243 |
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| Penstemon pinifolius Greene | R. D. Worthington 7500 | 08 Aug 1981 | United States of America | New Mexico | Grant Co. Black Range, Galinas… | — | 630518 |
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| Argyrochosma fendleri Windham | R. D. Worthington 7542 | 13 Aug 1981 | United States of America | New Mexico | Socorro Co. Strawberry Peak, about… | — | 3483929 |
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| Mentha arvensis L. | R. D. Worthington 7586 | 22 Aug 1981 | United States of America | New Mexico | Catron Co. Mogollon Mts., along… | — | 2057848 |
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| Sidalcea neomexicana A.Gray | R. D. Worthington 7588 | 22 Aug 1981 | United States of America | New Mexico | Catron Co. Mogollon Mts., along… | — | 3970118 |
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| Silene scouleri var. leptophylla C.L.Hitchc. & Maguire | R. D. Worthington 7589 | 22 Aug 1981 | United States of America | New Mexico | Catron Co. Mogollon Mts., along… | — | 3125965 |
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| Machaeranthera bigelovii (A.Gray) Greene | R. D. Worthington 7602 | 22 Aug 1981 | United States of America | New Mexico | Catron Co. Mogollon Mts., along… | — | 3046064 |
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| Geranium richardsonii Fisch. & Trautv. | R. D. Worthington 7620 | 23 Aug 1981 | United States of America | New Mexico | Catron Co. Mogollon Mts., along… | — | 3724577 |
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| Athyrium filix-femina var. californicum Butters | R. D. Worthington 7643 | 23 Aug 1981 | United States of America | New Mexico | Catron Co. Mogollon Mts., Bursum… | — | 3797301 |
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| Brickellia grandiflora (Hook.) Nutt. | R. D. Worthington 7652 | 23 Aug 1981 | United States of America | New Mexico | Catron Co. Mogollon Mts., 0.7… | — | 2028729 |
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| Euphorbia davidii Subils | R. D. Worthington 7666 | 22 Aug 1981 | United States of America | New Mexico | Grant Co. Silver City, N… | — | 4002192 |
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| Desmanthus cooleyi (Eaton) Trel. | R. D. Worthington 7668 | 22 Aug 1981 | United States of America | New Mexico | Grant Co. N side of… | — | 2717144 |
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| Asplenium resiliens Kunze | R. D. Worthington 7678 | 24 Aug 1981 | United States of America | New Mexico | Doña Ana Co. Organ Mts.,… | — | 3522633 |
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| Phanerophlebia auriculata Underw. | R. D. Worthington 7679 | 24 Aug 1981 | United States of America | New Mexico | Doña Ana Co. Organ Mts.,… | — | 4145091 |
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| Heterotheca subaxillaris (Lam.) Britton & Rusby | R. D. Worthington 7818 | 18 Oct 1981 | United States of America | Texas | Ward Co. 3 mi. E… | — | 3080502 |
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| Unspecified | R. D. Worthington 7880 | 06 Jan 1982 | Mexico | Durango | 3.5 rd. mi. SW (by… | — | 03889037 |
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| Arbutus xalapensis (Benth.) Kunth | R. D. Worthington 7891 | 06 Jan 1982 | Mexico | Durango | 3.8 rd. mi. (hwy. 40)… | — | 1874960 |
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| Arbutus xalapensis (Benth.) Kunth | R. D. Worthington 7932 | 07 Jan 1982 | Mexico | Sinaloa | along hwy. 40 8.6 rd.… | — | 1874996 |
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| Stevia jaliscensis B.L.Rob. | R. D. Worthington 7935 | 7 Jan 1982 | Mexico | Sinaloa | along hwy. 40 8.6 rd.… | — | 427790 | ||
| Pachycereus pecten-aboriginum (Engelm. ex S.Watson) Britton & Rose | R. D. Worthington 7962 | 08 Jan 1982 | Mexico | Sinaloa | Just N of Rio Fuerte… | — | 3889794 |
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| Mammillaria mazatlanensis K.Schum. | R. D. Worthington 7963 | 08 Jan 1982 | Mexico | Sinaloa | just N of the Rio… | — | 03860493 |
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| Lemaireocereus thurberi (Engelm.) Britton & Rose | R. D. Worthington 7973 | 08 Jan 1982 | Mexico | Sinaloa | N of the Rio Fuerte… | — | 03860190 |
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| Rathbunia alamosensis (Coult.) Britton & Rose ex Standl. | R. D. Worthington 7974 | 08 Jan 1981 | Mexico | Sinaloa | N of the Rio Fuerte… | — | 03890230 |
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| Encelia farinosa A.Gray ex Torr. | R. D. Worthington 7982 | 8 Jan 1982 | Mexico | Sonora | 16.4 rd. mi N of… | — | 417568 |
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| Asclepias subulata Decne. | R. D. Worthington 7983 | 08 Jan 1982 | Mexico | Sonora | 16.4 rd. mi. N of… | — | 4176318 |
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| Penstemon alamosensis Pennell & G.T.Nisbet | R. D. Worthington 8063 | 04 Apr 1982 | United States of America | Texas | El Paso Co. Hueco Mountains,… | — | 541481 |
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| Lantana velutina M.Martens & Galeotti | R. D. Worthington 8263 | 17 May 1982 | United States of America | Texas | Val Verde Co. US 90… | — | 03521899 |
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| Corallorhiza wisteriana Conrad | R. D. Worthington 8289 | 22 May 1982 | United States of America | New Mexico | Grant Co. Pinos Altos Mts.,… | — | 4038381 |
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| Chamaecrista greggii (A.Gray) Pollard ex A.Heller var. greggii | R. D. Worthington 8323 | 2 Jun 1982 | Mexico | Coahuila | 12.7 rd. mi NNE of… | — | 554239 |
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| Melampodium cinereum DC. | R. D. Worthington 8324 | 2 Jun 1982 | Mexico | Coahuila | 12.7 rd. mi NNE of… | — | 424798 |
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| Agave bracteosa S.Watson ex Engelm. | R. D. Worthington 8386 | 03 Jun 1982 | Mexico | Nuevo León | Sierra Del Fraile, canyon below… | — | 03879041 |
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| Zexmenia lantanifolia | R. D. Worthington 8433 | 6 Jun 1982 | Mexico | Tamaulipas | Victoria Mun. Sierra Madre Oriental,… | — | 422832 |
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