Knema oblongifolia Warb.

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Shrub or tree (2—)5—15 m. Twigs somewhat flattened or coarsely 2-or 3-angular, 2-4 (-6) mm diameter, at first with fine woolly hairs up to 1 mm long, early glabrescent; bark smooth, finely striate, ± glossy, not tending to crack or flake. Leaves chartaceous, (ellip-tic-)oblong, 10-25(-45) by 2.5-8(-16) cm, base attenuate to rounded, rarely subcordate, apex acute(-acuminate); drying (greenish) brown above, often with a typical pitted structure like the rind of an orange (lens!); lower surface greyish, at first with scattered greyish brown stellate hairs, 0.3 mm long, persistent or glabrescent; dots absent; midrib raised above; nerves 18-30 pairs, ± flat above; venation faint; petiole 10-22 by 1.5-3 mm. Inflorescences: peduncle up to 5 mm, axillary or up to 6 mm supra-axillary, bra-chyblast simple or forked, 2-6 mm long, in male 2-10-flowered, female 1-4-flowered; flowers with hairs 0.2-0.5 mm long; perianth 3-lobed, reddish (?) inside. Male flowers: pedicel (1—)2—3 mm long, bracteole persistent or caducous, almost apical; buds ellip-soid(-oblong) to ovate, or obovate, often somewhat contracted in the middle, 3.5-5 by 2-3 mm, cleft 1/3-1/2, lobes 0.5 mm thick; staminal disc small, ± circular, flat, 0.5-1 (-1.5) mm diameter; anthers 6-9, half-sessile, suberect, 0.3-0.6 mm, not tightly touching; androphore terete, slender, 1.7-3 mm long. Female flowers: pedicel 0.5-1 mm long, bracteole (sub)apical; buds ovoid, 5-6.5 by 3.5-4.5 mm, cleft c. 1/2, lobes 0.5(-l) mm thick; ovary subglobose, 1.7-3 mm diameter; style 1.5-2 mm long; stigma inconspicuous, 2-lobed and each lobe again 2-or 3-lobulate. Fruits 1-3 per infructescence, globose or (ob)ovoid, apex to 3 mm beaked, 2-3 by 1.5-2.3 cm, with rusty hairs 0.2-0.3 mm long; dry pericarp 2 mm thick; fruiting pedicel l-3(-4) mm long.
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Growth form tree
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Foliage retention evergreen
Sexuality dioecy
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Hardiness (USDA) 9-12

Usage

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Cultivation

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Distribution

Knema oblongifolia world distribution map, present in Lao People's Democratic Republic and Malaysia

Identifiers

LSID urn:lsid:ipni.org:names:585899-1
WFO ID wfo-0000356828
COL ID 6NLWD
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Knema oblongifolia Myristica oblongifolia