Duguetia tenuis R.E.Fr.
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Authority
Maguire, Bassett & Wurdack, John J. 1957. The Botany of the Guiana Highland -- Part II. Mem. New York Bot. Gard. 9 (3): 235-392.
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Family
Annonaceae
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Scientific Name
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Description
Latin Diagnosis - Arbor; ramuli tenues flexiles, juniores pilis stellatis patentibus instructi. Petiolus 1-2 mm longus; lamina membranacea, concolor, supra laevis et costa stellato-hirsuta glabrescenti excepta glaberrima, subtus primo pilis stellatis flavescentibus hirsuta, mox fere omnino glabra, lanceolata vel anguste obovata, ad medium vel paulo supra medium latissima, basin versus angustata, ima basi paulo inaequilateralis, uno latere acuto, altero plus minus obtuso, apice in cuspidem 1-1.5 cm longam et vulgo obtusam sat sensim contracta, (6-) 8-9 cm longa et 1.5-3 cm lata; costa supra impressa, subtus prominens; nervi laterales tenues, supra parum conspicui, subtus prominuli et reticulum laxum formantes. Sepala extus incano-tomentella, ovata, 15 mm longa et ca. 8 mm lata. Petala ca. 12 mm longa et 8 mm lata, exteriora ovata acuta, interiora oblonga. Stamina 2 mm longa, connectivi appendice conico-acuminata. Fructus (immaturus) 1 cm diam.; monocarpia glaberrima, in acumen longum subito contracta.
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Discussion
TYPE: BRITISH GUIANA: Issinoru Creek, Maz. R., in Morabucoa forest on red lateritic soil, March 4, 1949, Forest Department Field No. F 2860 (Record No. 6007), (NY).
Duguetia tenuis belongs to section Alcmene and is closely related to D. neglecta Sandw. It differs from this by smaller and comparatively narrower leaves with less marked cusp and less rounded base. The flowers seem to be smaller but perhaps are not fully developed on the material available.