Knema pallens W.j.de Wilde

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Tree 8-30 m. Twigs sometimes ± angular, 5-12 mm diameter, at first with pale brown hairs 0.2-2(-2.5) mm long, glabrescent; bark greyish brown, not striate, conspicuously longitudinally cracking, and flaking. Leaves chartaceous or coriaceous, when immature with dense indumentum, elliptic to lanceolate, 25-55 by (5-)6-23 cm, apex acute-acuminate or obtuse, base cordate, rarely rounded or subattenuate; greenish brown, ± glossy above; lower surface pale, glabrous, finely papillate; dots absent; midrib stout, raised above; nerves 18-32 pairs, raised above; venation coarse, sunken, faint above; petiole late glabrescent, 10-20 by 5-8 mm. Inflorescences: sessile, brachyblast simple, furcate, or warted, 5-20 mm diameter, in male (5-)10-30-flowered, female 10-20(-40)-flow-ered; flowers with yellowish brown hairs (0.1-)1 mm long; perianth 3-(or 4-)lobed, reddish inside, at base thickened into a ± striated disc. Male flowers: pedicel 12-20 mm long, bracteole 2-3 mm, caducous or (sub)persistent, median to (sub)apical; buds (depressed) globose or broadly obovoid, 6-10 by 6.5-10 mm, cleft 4/5 or more, lobes 1.5-2.5(-5) mm thick; staminal disc circular, flat or slightly concave, 2.5-4.5 mm diameter; anthers 15-23, just sessile, almost horizontal, 0.6-1 mm long, sometimes shortly apiculate, not touching; androphore somewhat tapering, 1-1.5 mm long. Female flowers: pedicel (7-) 10-20 mm long, bracteole about median; buds obovoid, 11 by 8-9 mm, cleft c. 2/3, lobes 2 mm thick; ovary subglobose, 3.5 mm diameter; style 1-1.5 mm long; stigma ± flat, 2-lobed and each lobe again 5-7-lobulate. Fruits 1-6 per infructescence, ellipsoid, 3.5-7 by 2.5-3.5(-4.5) cm, with light brown hairs 1-2 mm long; dry pericarp 4-7 mm thick; fruiting pedicel (10-) 14-30 mm long.
Life form -
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality dioecy
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Mature height (meter) 8.0 - 30.0
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Photosynthetic pathway c3

Environment

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Hardiness (USDA) 10-12

Usage

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Cultivation

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Distribution

Knema pallens world distribution map, present in Indonesia and Malaysia

Identifiers

LSID urn:lsid:ipni.org:names:585903-1
WFO ID wfo-0000356833
COL ID 6NM8C
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Knema pallens