Knema ridsdaleana W.j.de Wilde

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Small tree 8 m. Twigs 3(-4) mm diameter, at first with dense rusty hairs 0.5(-l) mm, late glabrescent; bark blackish, coarsely striate, not tending to crack or flake, lenticels not apparent. Leaves chartaceous(-coriaceous), (ovate-)oblong, 15-25 by 5.5-8(-9) cm, base broadly rounded, apex acute-acuminate; drying olivaceous or dark-brown above, lower surface (ashy-grey, glabrescent but indumentum ± remaining on and near lower part of midrib; minutely punctate but (larger) dots absent; midrib raised above, nerves 15-18 per side, raised above, venation distinct at both surfaces; petiole 15(-20) by (2-) 2.5 mm, late glabrescent. Inflorescences: pubescent, among the leaves, peduncle 10-15 by 2-2.5 mm, brachyblast simple or 2-or 3-forked, to 5 mm long; in male with subumbels of 1-3 buds of various sizes; flowers with dense dark brown woolly hairs 0.3(-0.5) mm, as a dense mat, at anthesis (when dry) largely falling off in large flakes, leaving the perianth completely glabrous; perianth 4-lobed, colour inside not known. Male flowers: pedicel 3-4(-5) mm long, bracteole persistent, (2-)2.5 mm long, 1 mm below the apex, with low ridges decurrent on the pedicel; buds depressed (sub)globose, 3 by 4-4.5 mm, cleft 4/5 (-9/10), lobes 0.4 mm thick; staminal disc flat, circular, 1.8(-2) mm diameter, anthers ± contiguous, 11-13, half-sessile, and adnate to the tapering androphore, anthers 4-sporangiate, thecae nearly 1 mm long, androphore short (less than 0.5 mm), striate. Female flowers and fruits not seen.
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Growth form tree
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Foliage retention evergreen
Sexuality dioecy
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Mature height (meter) 8.0
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Environment

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Hardiness (USDA) 8-12

Usage

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Edible -
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Cultivation

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Distribution

Knema ridsdaleana world distribution map, present in Philippines and Sierra Leone

Conservation status

Knema ridsdaleana threat status: Critically Endangered

Identifiers

LSID urn:lsid:ipni.org:names:992505-1
WFO ID wfo-0000356785
COL ID 6NLXW
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Knema ridsdaleana