Displaying 126 - 175 out of 413 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Chamaedorea | E. Contreras 2278 | 11 May 1961 | Guatemala | Petén | Dolores. | — |
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| Chamaedorea | E. Contreras 84 | 08 Aug 1959 | Guatemala | Petén | Tikal, north side of hotel,… | — |
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| Reinhardtia gracilis (H.Wendl.) Burret var. gracilis | E. Contreras 6961 | 19 May 1967 | Guatemala | Petén | La Cumbre, bordering Rio Pusila,… | — |
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| Reinhardtia gracilis (H.Wendl.) Burret var. gracilis | E. Contreras 6961 | 19 May 1967 | Guatemala | Petén | La Cumbre, bordering Rio Pusila,… | — |
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| Bactris mexicana var. trichophylla (Burret) A.J.Hend. | E. Contreras 66 | 01 Aug 1959 | Guatemala | Petén | Tikal, in forest covering the… | — |
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| Desmoncus chinantlensis Liebm. ex Mart. | E. Contreras 976 | 21 May 1960 | Guatemala | Petén | Remate, on Flores Road bordering… | — |
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| Desmoncus chinantlensis Liebm. ex Mart. | E. Contreras 976 | 21 May 1960 | Guatemala | Petén | Remate, on Flores Road bordering… | — |
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| Desmoncus chinantlensis Liebm. ex Mart. | E. Contreras 2581 | 12 Jul 1961 | Guatemala | Petén | Dolores, in high forest, between… | — |
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| Desmoncus chinantlensis Liebm. ex Mart. | E. Contreras 868 | 20 Apr 1960 | Guatemala | Petén | Remate, on Tikal road, in… | — |
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| Astrocaryum mexicanum Liebm. ex Mart. | E. Contreras 2257 | 05 May 1961 | Guatemala | Petén | Dolores, on Santo Toribio Trail,… | — |
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| Calyptrogyne ghiesbreghtiana subsp. spicigera (K.Koch) A.J.Hend. | E. Contreras 2113 | 18 Apr 1961 | Guatemala | Petén | Dolores, on Machaquila Road, km.… | — |
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| Calyptrogyne ghiesbreghtiana subsp. spicigera (K.Koch) A.J.Hend. | E. Contreras 2113 | 18 Apr 1961 | Guatemala | Petén | Dolores, on Machaquila Road, km.… | — |
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| Geonoma interrupta subsp. magnifica (Linden & H.Wendl.) A.J.Hend. | E. Contreras 2372 | 23 May 1961 | Guatemala | Petén | Dolores, km 82, about 300… | — |
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| Geonoma interrupta subsp. magnifica (Linden & H.Wendl.) A.J.Hend. | E. Contreras 2372 | 23 May 1961 | Guatemala | Petén | Dolores, km 82, about 300… | — |
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| Geonoma interrupta subsp. magnifica (Linden & H.Wendl.) A.J.Hend. | E. Contreras 2166 | 22 Apr 1961 | Guatemala | Petén | Dolores, bordering pineland, in corozal,… | — |
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| Arbutus xalapensis (Benth.) Kunth | E. Contreras 4884 | 05 Jun 1964 | Guatemala | — | El Quiche, Nebaj, on arroyo | — |
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| Encyclia bractescens (Lindl.) Hoehne | E. Contreras 9822 | 22 Mar 1970 | Guatemala | Petén | Poptun Road, La Cumbre de… | — |
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| Vaccinium leucanthum Schltdl. | E. Contreras 5002 | 15 Jun 1964 | Guatemala | — | El Quiche, Nebaj, Cerro de… | — |
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| Bursera simaruba (L.) Sarg. | E. Contreras 5617 | 17 Mar 1966 | Guatemala | Petén | East of Temple 1 Tikal… | — |
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| Protium copal (Schltdl. & Cham.) Engl. | E. Contreras 9543 | 06 Jan 1970 | Guatemala | Petén | San Andrés Mun. bordering new… | — |
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| Ocotea racemiflora Lundell | E. Contreras 7904 | 12 Oct 1968 | Guatemala | Alta Verapaz | Chahal Mun. Chahal, airport, 3.5… | isotype |
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| Nectandra magnifolia Lundell | E. Contreras 7865 | 08 Oct 1968 | Guatemala | Alta Verapaz | Chahal Mun. On Sepur Ranch,… | isotype |
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| Clidemia petiolaris (Schltdl. & Cham.) Schltdl. ex Triana | E. Contreras 3400 | 16 Feb 1962 | Guatemala | Petén | Lacandon. | — |
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| Clidemia petiolaris (Schltdl. & Cham.) Schltdl. ex Triana | E. Contreras 9879 | 24 May 1970 | Guatemala | Izabal | Cadenas. Forest bordering Rio Dulce. | — |
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| Cavendishia callista Donn.Sm. | E. Contreras 4737 | 20 May 1964 | Guatemala | Alta Verapaz | Chapultepec Farm, on Sebol-Coban road, | — |
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| Solanum schlechtendalianum Walp. | E. Contreras 3348 | 06 Feb 1962 | Guatemala | Petén | Lacandon, on La Ruina trail,… | — |
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| Conostegia xalapensis (Bonpl.) D.Don ex DC. | E. Contreras 5668 | 21 Apr 1966 | Guatemala | Petén | low forest in km 5… | — | ||||
| Albizia tomentosa (Micheli) Standl. | E. Contreras 5415 | 28 Jan 1966 | Guatemala | Petén | Bordering the lake at Macanché. | — |
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| Epidendrum isthmi Schltr. | E. Contreras 8284 | Jan 1969 | Guatemala | Petén | Tikal National Park, bordering Isla… | — |
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| Catopsis morreniana Mez | E. Contreras 1388 | 3 Aug 1960 | Guatemala | Petén | Tikal National Park, Tikal | — |
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| Rochefortia lundellii Lundell | E. Contreras 8514 | 10 May 1969 | Guatemala | Petén | Dos Lagunas, Ixcanrio, on Aguas… | — |
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| Maytenus mayana Lundell | E. Contreras 10536 | 17 Feb 1971 | Guatemala | Petén | La Cumbre, km 155 | isotype |
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| Conostegia xalapensis (Bonpl.) D.Don ex DC. | E. Contreras 6504 | 02 Nov 1966 | Guatemala | Petén | La Esperanza on Cadenas Road,… | — | ||||
| Protium multiramiflorum Lundell | E. Contreras 2560 | 29 Jun 1961 | Guatemala | Petén | Dolores, on Rio Mopan Trail,… | — |
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| Bursera simaruba var. yucatanensis Lundell | E. Contreras 3562 | 10 Apr 1962 | Guatemala | Petén | Lake Petén Itza, NW of… | — | ||||
| Miconia hondurensis Donn.Sm. | E. Contreras 10871 | 27 May 1971 | Guatemala | Izabal | On Peten-Guatemala Road, Cienaga. | — |
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| Forestiera corollata Cornejo & Wallander | E. Contreras 3319 | 05 Feb 1962 | Guatemala | Petén | Lacandón, El Caribal, bordering the… | holotype |
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| Cojoba graciliflora (S.F.Blake) Britton & Rose | E. Contreras 7142 | 20 Oct 1967 | Belize | Cayo | Sucotz, bordering Rio Mopan. | — | ||||
| Zygia recordii Britton & Rose | E. Contreras 7495 | 18 Jan 1968 | Guatemala | Petén | Guayacan, La Pita, bordering Rio… | — |
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| Zygia peckii (B.L.Rob.) Britton & Rose | E. Contreras 3426 | 21 Feb 1962 | Guatemala | Petén | Lacandon, about 3 km. south. | — |
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| Fimbristylis vahlii (Lam.) Link | E. Contreras 3531 | 16 Mar 1962 | Guatemala | Petén | Lacandon, bordering Rio Usumasinta. | — | ||||
| Rhynchospora nervosa (Vahl) Boeckeler | E. Contreras 273 | 13 Oct 1959 | Guatemala | Petén | Tikal National Park, Bajo de… | — | ||||
| Calyptrocarya glomerulata (Brongn.) Urb. | E. Contreras 5331 | 21 Jul 1964 | Guatemala | Alta Verapaz | Sebol, El Caoba, in clearing. | — |
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| Sphinga platyloba (Bertero ex DC.) Barneby & J.W.Grimes | E. Contreras 6870 | 08 May 1967 | Guatemala | Petén | Bajo El Venado, km. 65… | — |
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| Ipomoea ramosissima (Poir.) Choisy | E. Contreras 6648 | 03 Mar 1967 | Guatemala | Petén | La Cumbre, in forest west… | — | ||||
| Sickingia lancifolia var. puberula Lundell | E. Contreras 3514 | 12 Mar 1962 | Guatemala | Petén | Lacandon, in bajo about 1… | isotype |
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| Pithecellobium furcatum Benth. | E. Contreras 7777 | 10 Oct 1968 | Guatemala | Alta Verapaz | Chahal, bording Rio Chiyu, in… | — |
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| Lysiloma latisiliquum (L.) Benth. | E. Contreras 926 | 09 May 1960 | Guatemala | Petén | Tikal National Park, Tikal, on… | — |
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| Cojoba graciliflora (S.F.Blake) Britton & Rose | E. Contreras 9864 | 23 May 1970 | Guatemala | Izabal | Cadenas, bordering Rio Cienaga. | — |
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| Neomillspaughia paniculata (Donn.Sm.) S.F.Blake | E. Contreras 5432 | 29 Jun 1966 | Guatemala | Petén | 2800 m. North of Macanché | — |
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