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2015
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| Accès en ligne: | https://doi.org/10.5281/zenodo.17612399 |
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| author | Maas, P. J. M. Westra, L. Y. T. Guerrero, S. Arias Lobão, A. Q. Scharf, U. Zamora, N. A. Erkens, R. H. J. |
| author_facet | Maas, P. J. M. Westra, L. Y. T. Guerrero, S. Arias Lobão, A. Q. Scharf, U. Zamora, N. A. Erkens, R. H. J. |
| contents | <p><b>120. <i>Guatteria partangensis</i> Scharf & Maas — Map 22</b></p><p><i>Guatteria partangensis</i> Scharf & Maas in Scharf et al. (2005) 569, f. 4. —</p><p>Type: <i>Tillett et al. 43975</i> (holo K; iso BRG, MO, NY, S, US), Guyana, Merume Mts, Partang River, 3 July 1960.</p><p>Tree c. 8 m tall, diam not recorded; young twigs densely covered with erect, long-persisting hairs 1–1.5 mm long. <i>Leaves</i>: petiole 3–5 mm long, c. 2 mm diam; lamina narrowly elliptic, 8–15 by 4–5 cm (leaf index 2.8–3.2), coriaceous, not verruculose, dull, greyish brown above, dark to yellowish brown below, glabrous above, but primary vein covered with a dense row of hairs, soon glabrous, rather densely covered with erect hairs c. 1 mm long below, base obtuse, apex acuminate (acumen 10–25 mm long), primary vein impressed above, secondary veins distinct, 6 – 9 on either side of primary vein, raised above, smallest distance between loops and margin c. 1 mm, tertiary veins raised above, reticulate. <i>Flowers</i> solitary in axils of leaves or on leafless branchlets; pedicels c. 40 mm long, c. 1 mm diam, fruiting pedicels c. 50 mm long, 1–1.5 mm diam, densely covered with erect hairs c. 1 mm long, articulated at 0.2–0.4 from the base, bracts 4–5, soon falling, not seen; flower buds not seen; sepals free, broadly ovate-triangular, 5–7 by 5–7 mm, appressed, outer side densely covered with erect hairs; petals pale green in vivo, elliptic, 20–25 by 7–11 mm, outer side densely to finally sparsely covered with erect, more or less curly hairs; stamens 1.5–2 mm long, connective shield papillate, flat to umbonate. <i>Monocarps</i> 8–10, black in vivo, brown in sicco, ellipsoid, 8–11 by 7–8 mm, glabrous, apex apiculate (apiculum <0.5 mm long), wall c. 0.1 mm thick, stipes 17–20 by c. 1 mm. <i>Seed</i> ellipsoid, c. 10 by 6 mm, dark, shiny brown, pitted, raphe slightly raised.</p><p>Distribution — Guyana (Merume Mts).</p><p>Habitat & Ecology — In forest, along ridge trail of mountain. At an elevation of c. 500 m. Flowering: July; fruiting: July.</p><p>Vernacular names — Not recorded.</p><p>Note — <i>Guatteria partangensis</i>, only known from the type collection, slightly resembles <i>G. ouregou</i>, a species restricted to French Guiana, due to its erect, long hairs on young twigs and pedicels. It differs from the latter by a lower number of secondary veins (6–9 vs 11–15) and longer pedicels (40–50 vs 10–25 mm).</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_17612399 |
| institution | Zenodo |
| language | |
| publishDate | 2015 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Guatteria partangensis Scharf & Maas Maas, P. J. M. Westra, L. Y. T. Guerrero, S. Arias Lobão, A. Q. Scharf, U. Zamora, N. A. Erkens, R. H. J. Biodiversity Taxonomy Plantae Tracheophyta Magnoliopsida Magnoliales Annonaceae Guatteria Guatteria partangensis <p><b>120. <i>Guatteria partangensis</i> Scharf & Maas — Map 22</b></p><p><i>Guatteria partangensis</i> Scharf & Maas in Scharf et al. (2005) 569, f. 4. —</p><p>Type: <i>Tillett et al. 43975</i> (holo K; iso BRG, MO, NY, S, US), Guyana, Merume Mts, Partang River, 3 July 1960.</p><p>Tree c. 8 m tall, diam not recorded; young twigs densely covered with erect, long-persisting hairs 1–1.5 mm long. <i>Leaves</i>: petiole 3–5 mm long, c. 2 mm diam; lamina narrowly elliptic, 8–15 by 4–5 cm (leaf index 2.8–3.2), coriaceous, not verruculose, dull, greyish brown above, dark to yellowish brown below, glabrous above, but primary vein covered with a dense row of hairs, soon glabrous, rather densely covered with erect hairs c. 1 mm long below, base obtuse, apex acuminate (acumen 10–25 mm long), primary vein impressed above, secondary veins distinct, 6 – 9 on either side of primary vein, raised above, smallest distance between loops and margin c. 1 mm, tertiary veins raised above, reticulate. <i>Flowers</i> solitary in axils of leaves or on leafless branchlets; pedicels c. 40 mm long, c. 1 mm diam, fruiting pedicels c. 50 mm long, 1–1.5 mm diam, densely covered with erect hairs c. 1 mm long, articulated at 0.2–0.4 from the base, bracts 4–5, soon falling, not seen; flower buds not seen; sepals free, broadly ovate-triangular, 5–7 by 5–7 mm, appressed, outer side densely covered with erect hairs; petals pale green in vivo, elliptic, 20–25 by 7–11 mm, outer side densely to finally sparsely covered with erect, more or less curly hairs; stamens 1.5–2 mm long, connective shield papillate, flat to umbonate. <i>Monocarps</i> 8–10, black in vivo, brown in sicco, ellipsoid, 8–11 by 7–8 mm, glabrous, apex apiculate (apiculum <0.5 mm long), wall c. 0.1 mm thick, stipes 17–20 by c. 1 mm. <i>Seed</i> ellipsoid, c. 10 by 6 mm, dark, shiny brown, pitted, raphe slightly raised.</p><p>Distribution — Guyana (Merume Mts).</p><p>Habitat & Ecology — In forest, along ridge trail of mountain. At an elevation of c. 500 m. Flowering: July; fruiting: July.</p><p>Vernacular names — Not recorded.</p><p>Note — <i>Guatteria partangensis</i>, only known from the type collection, slightly resembles <i>G. ouregou</i>, a species restricted to French Guiana, due to its erect, long hairs on young twigs and pedicels. It differs from the latter by a lower number of secondary veins (6–9 vs 11–15) and longer pedicels (40–50 vs 10–25 mm).</p> |
| title | Guatteria partangensis Scharf & Maas |
| topic | Biodiversity Taxonomy Plantae Tracheophyta Magnoliopsida Magnoliales Annonaceae Guatteria Guatteria partangensis |
| url | https://doi.org/10.5281/zenodo.17612399 |