Tetrameranthus macrocarpus (Westra, Lubbert Y.T. & Maas, Paul J. M. 2012)
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Genus: Tetrameranthus
Name
Tetrameranthus macrocarpus Westra, Lubbert Y.T., 2012 – Wikispecies link – Pensoft Profile
- Tetrameranthus macrocarpus Westra, Lubbert Y.T., 2012, PhytoKeys 12: 11-13.
Description
Description. Tall tree, young twigs and petioles densely to rather densely covered with stellate hairs>0.5 mm long. Leaves: petioles 20-30 mm long, 3-4 mm diam., slightly thickened toward the base; lamina elliptic to obovate to narrowly so, 14-20 by 5-8 cm (index 2-2.9), coriaceous, glabrous above, rather densely to sparsely covered with stellate hairs on large veins, otherwise glabrous below, base acute to attenuate, apex acuminate (acumen 5-20 m long), primary vein impressed above, secondary veins 9-11 on either side of primary vein, impressed above, loop-forming, shortest distance between loops and margin 1-2 mm, or not loop-forming, tertiary veins flat and inconspicuous above, percurrent to reticulate. Inflorescences 1-flowered; peduncles c. 5 mm long, 2-2.5 mm diam., fruiting peduncles to c. 5 mm diam.; bracts 4, triangular to narrowly triangular, 2-3 mm long, outer side densely covered with stellate hairs, falling after flowering; pedicels 25-30 mm long, c. 2 mm diam., fruiting pedicels to c. 35 mm long, peduncles and pedicels densely covered with stellate hairs, becoming glabrous. Flowers: color not mentioned; sepals broadly triangular-ovate, connate just at the base, 3-4 mm long, outer side densely covered with stellate hairs; outer petals elliptic, 25-30 mm long, 12-15 mm wide, base attenuate into a more or less distinct claw, apex acute to obtuse, callus area at inner base to c. 5 mm long, inner petals similar to outer petals, 20-25 mm long, outer side of petals densely covered with stellate hairs; stamens c. 3 mm long, connective shield with conical prolongation (fide Fries 1957). Monocarps 1 - 2, green, probably maturing yellow in vivo, brown in sicco, ellipsoid or oblongoid, with (2-seeded forms) or without oblique constriction, apex rounded, to c. 60 (1-seeded) or c. 80 by 35 mm (2-seeded). Seeds 1-2 per monocarp, to c. 35 by 28 mm.
Distribution
Distribution. Colombia (Vaupes). Only known from the type collection.
Taxon Treatment
- Westra, Lubbert Y.T.; Maas, Paul J. M.; 2012: Tetrameranthus (Annonaceae) revisited including a new species, PhytoKeys 12: 11-13. doi
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