Displaying 1 - 50 out of 1985 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Tillandsia recurvata (L.) L. | D. T. MacDougal 3157 | Jul 1897 | Jamaica | — | On tree. | — |
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| Isodrepanium lentulum (Wilson) E.Britton | D. T. MacDougal | Jul 1903 | Jamaica | — | Cinchona | — | ||||
| Ephedra torreyana S.Watson | D. T. MacDougal 210 | 19 Apr 1905 | Mexico | — | Gravel mesa, near New [?]… | — | ||||
| Citharexylum shrevei Moldenke | D. T. MacDougal 59 | 19 Nov 1923 | Mexico | Sonora | Picu Pass | type fragment |
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| Rathbunia alamosensis (Coult.) Britton & Rose ex Standl. | D. T. MacDougal 35 | 1902 | Mexico | Sonora | Torres | — | ||||
| Larrea peninsularis Britton | D. T. MacDougal 114 | 04 Apr 1905 | Mexico | Baja California | Cucapa Mts. | holotype |
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| Phaca lerdoensis Rydb. | D. T. MacDougal s.n. | Feb 1904 | Mexico | Sonora | Colonia Lerdo | holotype |
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| Phaca nivea Rydb. | D. T. MacDougal s.n. | Feb 1904 | Mexico | — | 15 mi N of San… | holotype |
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| Echinochloa crus-galli var. zelayensis (Kunth) Hitchc. | D. T. MacDougal s.n. | 29 Jan 1904 | Mexico | Baja California | Banks of Rio Colorado below… | — |
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| Rathbunia alamosensis (Coult.) Britton & Rose ex Standl. | D. T. MacDougal 35 | 1902 | Mexico | Sonora | Torres | — |
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| Trixis californica Kellogg var. californica | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay | — | ||||
| Pluchea sericea (Nutt.) Coville | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay | — | ||||
| Hymenoclea salsola var. pentalepis (Rydb.) L.D.Benson | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay | — | ||||
| Bursera microphylla A.Gray | D. T. MacDougal s.n. | 05 May 1923 | Mexico | Sonora | East of Port Libertad. | — |
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| Bursera microphylla A.Gray | D. T. MacDougal s.n. | 14 Nov 1923 | Mexico | Sonora | — |
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| Bursera microphylla A.Gray | D. T. MacDougal 215 | 19 Apr 1905 | Mexico | Baja California | Cucapa Mts. | — |
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| Bursera microphylla A.Gray | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay | — |
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| Bursera stenophylla Sprague & L.Riley | D. T. MacDougal s.n. | 31 Dec 1969 | Mexico | Oaxaca | Escurano. Tehuantepec. | — | ||||
| Bursera submoniliformis Engl. | D. T. MacDougal H467 | 23 May 1972 | Mexico | Oaxaca | Masahui, Juchitan. | — | ||||
| Astragalus nuttallianus var. imperfectus (Rydb.) Barneby | D. T. MacDougal 203 | 18 Apr 1905 | Mexico | Baja California | Crater, Arrobrito, Cucapa Mts. | — |
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| Astragalus sabulonum A.Gray | D. T. MacDougal 87 | 27 Mar 1905 | Mexico | — | Mesa near Inter. Bound. Colorado… | — |
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| Errazurizia megacarpa (S.Watson) I.M.Johnst. | D. T. MacDougal 22 | 15 Nov 1923 | Mexico | Sonora | Libertad | — | ||||
| Lycium | D. T. MacDougal 35 | 16 Nov 1923 | Mexico | Sonora | Kino Pt. | — |
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| Bouteloua barbata Lag. | D. T. MacDougal s.n. | 21 Apr 1905 | Mexico | Baja California | Plains of New Noir | — |
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| Bouteloua barbata Lag. | D. T. MacDougal 208 | 18 Apr 1905 | Mexico | Baja California | Crater of Cerro Breta, Cucapa… | — |
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| Aristida | D. T. MacDougal 204 | 18 Apr 1905 | Mexico | Baja California | Cucotia Mts | — |
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| Aristida | D. T. MacDougal 112 | 04 Apr 1905 | Mexico | Baja California | Cucopa Mts.; Lower Slopes | — |
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| Porphyra leucosticta Thur. | D. T. MacDougal s.n. | 11 Feb 1904 | Mexico | Baja California | San Felipe Bay | — |
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| Porphyra leucosticta Thur. | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay | — |
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| Porphyra leucosticta Thur. | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay | — |
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| Cladophora microcladioides Collins | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay | — |
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| Ulva linza L. | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay | — |
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| Ulva rigida C.Agardh | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay | — |
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| Ulva rigida C.Agardh | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay | — |
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| Polysiphonia paniculata Mont. | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay | — |
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| Polysiphonia paniculata Mont. | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay | — |
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| Pilosocereus chrysacanthus (F.A.C.Weber) Byles & G.D.Rowley | D. T. MacDougal 44 | 31 Aug 1906 | Mexico | Puebla | El Riego, Tehuacán | — |
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| Pilosocereus chrysacanthus (F.A.C.Weber) Byles & G.D.Rowley | D. T. MacDougal 33 | 14 Sep 1906 | Mexico | — | En route to Esperanza | — |
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| Camissonia claviformis subsp. peirsonii (Munz) P.H.Raven | D. T. MacDougal 107 | 04 Apr 1905 | Mexico | Baja California | Cucopa Mts. | — |
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| Conostegia xalapensis (Bonpl.) D.Don ex DC. | D. T. MacDougal s.n. | — | Mexico | Oaxaca | — | |||||
| Ferocactus cylindraceus var. lecontei Bravo | D. T. MacDougal 133 | 5 Apr 1905 | Mexico | Baja California | Cucopa Mts. | — |
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| Ferocactus cylindraceus var. lecontei Bravo | D. T. MacDougal | s.d. | Mexico | — | Estado Libre y Soberano de… | — |
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| Ferocactus cylindraceus var. lecontei Bravo | D. T. MacDougal 20074 | s.d. | Mexico | Baja California | San Felipe Bay | — |
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| Ferocactus cylindraceus var. lecontei Bravo | D. T. MacDougal 133 | 1905 | Mexico | Baja California | Cucopa Mts | — |
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| Euphorbia pediculifera Engelm. | D. T. MacDougal s.n. | Feb 1904 | Mexico | Baja California | San Felipe Bay. | — |
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| Euphorbia pediculifera Engelm. | D. T. MacDougal 122 | 04 Apr 1905 | Mexico | Baja California | Cucopa Mts. | — |
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| Euphorbia tomentosa S.Watson | D. T. MacDougal | Feb 1904 | Mexico | Baja California | San Felipe Bay | — |
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| Beaucarnea gracilis Lem. | D. T. MacDougal 51 | 02 Sep 1906 | Mexico | — | El Riego, Tehuacan | — |
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| Ferocactus flavovirens (Scheidw.) Britton & Rose | D. T. MacDougal 25710 | 1906 | Mexico | Puebla | Tehuacán Mun. | — |
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| Hymenoclea salsola Torr. & A.Gray var. salsola | D. T. MacDougal 109 | 4 Apr 1905 | Mexico | Baja California | Mexicali Mun. Cucapa Mts., B.C. | — |