Displaying 1 - 25 out of 64 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | Notice | ||
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| Abarema jupunba var. trapezifolia (Vahl) Barneby & J.W.Grimes | M. Polak 287 | 24 Mar 1991 | Guyana | — | Ca.1km.E of camp site, Waraputa… | — |
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| Abarema jupunba var. trapezifolia (Vahl) Barneby & J.W.Grimes | M. Polak 185 | 30 Nov 1990 | Guyana | — | Near township of Mabaruma. | — |
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| Abarema jupunba var. trapezifolia (Vahl) Barneby & J.W.Grimes | M. Polak 158 | 05 Nov 1990 | Guyana | — | Mabaruma; along Mauru Cr., 2… | — |
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| Abarema jupunba var. trapezifolia (Vahl) Barneby & J.W.Grimes | M. Polak 158 | 05 Nov 1990 | Guyana | — | Mabaruma; along Mauru Cr., 2… | — | ||||
| Aspidosperma excelsum Benth. | M. Polak 187 | 12 Mar 1990 | Guyana | — | Along old logging road, 15… | — |
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| Aspidosperma excelsum Benth. | M. Polak 187 | 03 Dec 1990 | Guyana | — | Along old logging road, 15… | — |
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| Aspidosperma spruceanum Benth. ex Müll.Arg. | M. Polak 14 | 14 Aug 1990 | Guyana | — | Waraputa Compartment, ca. 25 km… | — |
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| Aspidosperma spruceanum Benth. ex Müll.Arg. | M. Polak 595 | 09 Dec 1991 | Guyana | — | Central Demerara Comp., ca. 45… | — |
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| Aspidosperma spruceanum Benth. ex Müll.Arg. | M. Polak 567 | "31-11-1991" | Guyana | — | Waraputa Compartment, ca. 25 km… | — |
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| Aspidosperma spruceanum Benth. ex Müll.Arg. | M. Polak 617 | 17 Dec 1991 | Guyana | — | Waraputa compt., plot 18.4, ca.… | — |
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| Aspidosperma ulei Markgr. | M. Polak 384 | 11 Feb 1991 | Guyana | — | Central Demerara compartment, ca. 45… | — |
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| Bactris oligoclada Burret | M. Polak nr4 | 09 Jul 1990 | Guyana | — | Along access road to Tropenbos… | — |
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| Bursera | M. Polak 343 | 01 Oct 1991 | Guyana | — | Near fieldstation of Tropenbos Ecological… | — |
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| Campylocentrum micranthum (Lindl.) Rolfe | M. Polak 178 | 11 Sep 1990 | Guyana | — | Mabaruma. Swamp; behind farm of… | — |
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| Cedrela odorata L. | M. Polak 546 | 18 Nov 1991 | Guyana | — | Takutu area, concession of Willems… | — | ||||
| Chaetocarpus schomburgkianus (Kuntze) Pax & K.Hoffm. | M. Polak 62 | 25 Oct 1990 | Guyana | — | Port Kaituma | — |
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| Chaetocarpus schomburgkianus (Kuntze) Pax & K.Hoffm. | M. Polak 195 | 10 Dec 1990 | Guyana | — | Along old logging roadm 15… | — |
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| Conchocarpus toxicarius (Spruce ex Engl.) Kallunki & Pirani | M. Polak 584 | 05 Dec 1991 | Guyana | — | Central Demerara Comp., ca. 45… | — | ||||
| Couratari gloriosa Sandwith | M. Polak 320 | 06 Mar 1991 | French Guiana | — | Near Tropenbos Ecological Reserve, ca.… | — | ||||
| Couratari gloriosa Sandwith | M. Polak 342 | 01 Oct 1991 | Guyana | — | Near fieldstation of Tropenbos Ecological… | — |
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| Couratari gloriosa Sandwith | M. Polak 320 | 03 Jun 1991 | Guyana | — | Near fieldstation of Tropenbos Ecological… | — |
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| Couratari guianensis Aubl. | M. Polak 594 | 09 Dec 1991 | Guyana | — | Central Demerara Comp. ca. 45… | — |
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| Couratari guianensis Aubl. | M. Polak 115 | 29 Oct 1990 | Guyana | — | Port Kaituma. | — |
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| Couratari guianensis Aubl. | M. Polak 115 | 29 Oct 1990 | Guyana | — | Port Kaituma. | — | ||||
| Couratari guianensis Aubl. | M. Polak 594 | 09 Dec 1991 | Guyana | — | Central Demerara Comp. ca. 45… | — |