Displaying 26 - 64 out of 64 Object(s)
| Taxon | Collector | Date | Country | State/Province | Locality | Type Status | Barcode | ||
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| Couratari guianensis Aubl. | M. Polak 115 | 29 Oct 1990 | Guyana | — | Port Kaituma. | — | 729048 |
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| Couratari guianensis Aubl. | M. Polak 115 | 29 Oct 1990 | Guyana | — | Port Kaituma. | — | 728905 | ||
| Couratari guianensis Aubl. | M. Polak 594 | 09 Dec 1991 | Guyana | — | Central Demerara Comp. ca. 45… | — | 728933 | ||
| Lecythis corrugata Poit. subsp. corrugata | M. Polak 161 | 06 Nov 1990 | Guyana | — | Mabaruma; along Mauru Cr., ca… | — | 00690135 |
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| Lecythis corrugata Poit. subsp. corrugata | M. Polak 174 | 09 Nov 1990 | Guyana | — | Mabaruma; behind farm of Mr.… | — | 00690136 |
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| Eschweilera micrantha (O.Berg) Miers | M. Polak 105 | 29 Oct 1990 | Guyana | — | Port Kaituma. | — | 02269957 |
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| Eschweilera Mart. ex DC. | M. Polak nr267 | 19 Mar 1991 | Guyana | — | Near inventory line 14, Waraputa… | — | 02152851 |
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| Eschweilera decolorans Sandwith | M. Polak 57 | 25-10-1990 | Guyana | — | Port Kaituma. | — | 00689686 |
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| Conchocarpus toxicarius (Spruce ex Engl.) Kallunki & Pirani | M. Polak 584 | 05 Dec 1991 | Guyana | — | Central Demerara Comp., ca. 45… | — | 235391 | ||
| Abarema jupunba var. trapezifolia (Vahl) Barneby & J.W.Grimes | M. Polak 158 | 05 Nov 1990 | Guyana | — | Mabaruma; along Mauru Cr., 2… | — | 01299726 |
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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… | — | 01419594 | ||
| Cedrela odorata L. | M. Polak 546 | 18 Nov 1991 | Guyana | — | Takutu area, concession of Willems… | — | 389987 | ||
| Schefflera decaphylla (Seem.) Harms | M. Polak 597 | 11-12-1991 | Guyana | — | Near township of Mabura. | — | 03227448 |
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| Schefflera decaphylla (Seem.) Harms | M. Polak 250 | 14 Mar 1991 | Guyana | — | Near township of Mabura. | — | 03227452 |
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| Schefflera morototoni (Aubl.) Maguire, Steyerm. & Frodin | M. Polak 528 | 14 Nov 1991 | Guyana | — | Takutu area, concession of Willems… | — | 03227521 |
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| Schefflera morototoni (Aubl.) Maguire, Steyerm. & Frodin | M. Polak 91 | 27 Oct 1990 | Guyana | — | Port Kaituma | — | 03227522 |
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| Spathiphyllum cannifolium (Dryand. ex Sims) Schott | M. Polak 152 | 11 Apr 1990 | Guyana | — | Swamp forest along Kariabo R.,… | — | 3803462 |
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| Campylocentrum micranthum (Lindl.) Rolfe | M. Polak 178 | 11 Sep 1990 | Guyana | — | Mabaruma. Swamp; behind farm of… | — | 4013622 |
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| Dichaea rendlei Gleason | M. Polak 110 | — | Guyana | — | Port Kaituma. Epiphyte on M.… | — | 4069981 |
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| Aspidosperma excelsum Benth. | M. Polak 187 | 12 Mar 1990 | Guyana | — | Along old logging road, 15… | — | 4177151 |
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| Aspidosperma spruceanum Benth. ex Müll.Arg. | M. Polak 14 | 14 Aug 1990 | Guyana | — | Waraputa Compartment, ca. 25 km… | — | 4177443 |
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| Aspidosperma spruceanum Benth. ex Müll.Arg. | M. Polak 595 | 09 Dec 1991 | Guyana | — | Central Demerara Comp., ca. 45… | — | 4177444 |
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| Aspidosperma spruceanum Benth. ex Müll.Arg. | M. Polak 567 | "31-11-1991" | Guyana | — | Waraputa Compartment, ca. 25 km… | — | 4177446 |
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| Aspidosperma spruceanum Benth. ex Müll.Arg. | M. Polak 617 | 17 Dec 1991 | Guyana | — | Waraputa compt., plot 18.4, ca.… | — | 4177449 |
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| Aspidosperma ulei Markgr. | M. Polak 384 | 11 Feb 1991 | Guyana | — | Central Demerara compartment, ca. 45… | — | 4177582 |
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| Chaetocarpus schomburgkianus (Kuntze) Pax & K.Hoffm. | M. Polak 62 | 25 Oct 1990 | Guyana | — | Port Kaituma | — | 3950381 |
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| Hyeronima alchorneoides Allemão | M. Polak 93 | 28 Oct 1990 | Guyana | — | Port Kaituma | — | 4067987 |
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| Mabea piriri Aubl. | M. Polak 95 | 28 Oct 1990 | Guyana | — | Port Kaituma | — | 4072068 |
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| Aspidosperma excelsum Benth. | M. Polak 187 | 03 Dec 1990 | Guyana | — | Along old logging road, 15… | — | 4191991 |
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| Chaetocarpus schomburgkianus (Kuntze) Pax & K.Hoffm. | M. Polak 195 | 10 Dec 1990 | Guyana | — | Along old logging roadm 15… | — | 3950388 |
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| Mabea speciosa subsp. guianensis Esser | M. Polak 227 | 11 Jan 1991 | Guyana | — | Near bathing place at Ya-ya… | — | 04072222 |
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| Maprounea guianensis Aubl. | M. Polak 239 | 13 Jan 1991 | Guyana | — | Seballi compt., ca. 3 km… | — | 4081919 |
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| Sandwithia guyanensis Lanj. | M. Polak 455 | 08 Nov 1991 | Guyana | — | Near Tropenbos ecological reserve, 15… | — | 4091939 |
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| Hyeronima alchorneoides Allemão | M. Polak 579 | 05 Dec 1991 | Guyana | — | Central Demerara Compartment, ca. 50… | — | 4068019 |
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| Drypetes | M. Polak 608 | 15 Dec 1991 | Guyana | — | Imbo Compartment, ca. 3 km… | — | 3995462 |
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| Encyclia | M. Polak 177 | 09 Nov 1990 | Guyana | — | Mabaruma | — | 04076668 |
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| Epidendrum rigidum Jacq. | M. Polak 124 | 30 Oct 1990 | Guyana | Barima-Waini | Port Kaituma | — | 4104764 |
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| Forsteronia guyanensis Müll.Arg. | M. Polak 68 | 26 Oct 1990 | Guyana | Barima-Waini | Matthews Ridge / Arakaka (Matakai)… | — | 4186132 |
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| Forsteronia guyanensis Müll.Arg. | M. Polak 562 | 21 Nov 1991 | Guyana | Pomeroon-Supenaam | Takutu area, concession of Willems… | — | 4186133 |
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