Pflanzenwissen · Art
DESCRIPTION Tree 5 - 18 m tall, dbh 15 - 43 cm.
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DESCRIPTION Tree 5 - 18 m tall, dbh 15 - 43 cm. Twigs stout, 6.3 - 7.4 mm thick, rounded in cross-section, glabrous; terminal leaf bud unknown. Leaves alternate; blade lanceolate, 18 - 45 × 10 - 16 cm, apex acute, sometimes emarginate, base cuneate, blade stiff-leathery, penninerved, secondary nerves 11 - 15 pairs, curving and looping near margin, tertiary nerves scalariform-reticulate; upper surface glabrous, midrib and secondary nerves raised, tertiary nerves distinct; lower surface glabrous, midrib and secondary nerves raised, tertiary nerves distinct; petiole half-terete, 23 - 55 mm long, swollen, glabrous. Inflorescences cauliflorous or in leaf axils, 15 - 30 mm long, in clusters of umbels, densely hairy; bracts 4, 5 - 6.3 × 4.5 - 5 mm, apex acute, velutinous. Flowers: male flowers: perianth lobes 3.4 - 4.6 × 0.9 - 1.7 mm, apex rounded to acute, sparsely hairy outside, glabrous inside; stamens 3.9 - 4.8 mm long, sparsely hairy; female flowers: perianth lobes lanceolate, 2 - 2.5 × 0.6 - 0.8 mm, apex acute, glabrous. Fruits globose, 20 - 25 × 20 - 22 mm, apex rounded, smooth, glabrous; cupule shallow, 18 - 20 × 9 - 10 mm, margin entire, warty; stalk slender, 6 - 8.5 × 5 - 6 mm (see Fig. 10).
(Figs 7; 10)
Pflege
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Nächster Schritt
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CONSERVATION ASSESSMENT. — Endangered (EN B 1 ab (i, iii), B 2 ab (ii, iii )). This species is only known from four collections representing four localities in Vietnam and Laos. An analysis of the Extent of Occurrence (EOO) and Area of Occupancy (AOO) gives an IUCN Conservation Assessment of Endangered.
ECOLOGY. — Growing in forest over limestone, between 300 - 450 m altitude. Flowering in April; fruiting from February to December.
VERNACULAR NAME. — Vietnamese: Toc poc (Poilane 5019).