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| Formatua: | Recurso digital |
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Zenodo
2015
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| Sarrera elektronikoa: | https://doi.org/10.5281/zenodo.17612399 |
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Aurkibidea:
- <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>