Knema pseudolaurina W.j.de Wilde

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Tree 5-30 m. Twigs (2-)3-5 mm diameter, with dense yellow brown or rusty hairs (mixed) 0.05-0.5 mm long, (late) glabrescent; bark striate, not tending to crack or flake. Leaves chartaceous or coriaceous, oblong to (ob)lanceolate, 12-40 by 3-12 cm, base (sub)attenuate to rounded, rarely subcordate, apex acute(-acuminate), sometimes obtuse; olivaceous above, lower surface finely papillate, with (largely) persistent pale yellowish to brown sparse hairs 0.1-0.2 mm long, mixed with larger stellate-dendroid hairs (lens!); dots absent; midrib flat or slightly raised above; nerves 18-30 pairs, flat or ± sunken above; venation (very) fine, raised, distinct above; petiole 10-22 by 1.5-3.5 mm late glabrescent. Inflorescences: sessile, brachyblast simple or warted, or 2-or 3-fid, to 10 mm long; in male 3-25-flowered, female 3-15-flowered; flowers with short dense yellow-brown, rusty, or golden hairs 0.1-0.5 mm long; perianth 3-lobed, reddish inside. Male flowers: pedicel 4.5-8.5 mm long, bracteole subpersistent or caducous, at or up to 2 mm below the apex; buds obovoid(-oblong), 4-6 by 2.5-4.5 mm, cleft 1/2-2/3, lobes 1-1.5 mm thick; staminal disc flat or slightly concave, circular, 1.5-2 mm diameter; anthers 8-11, half sessile to just stiped, half erect to nearly horizontal, 0.3-0.6 mm long, not or only little touching, androphore tapering, 1.5-2.5 mm long, rarely with hairs 0.1 mm at base. Female flowers: pedicel to 1.5 mm long, bracteole apical; buds ovoid-oblong, 6-8 by 3.5-4.5 mm, cleft c. 1/3, lobes 1-1.5 mm thick; ovary globose or broadly ovoid, 3-3.5 by 2.5 mm, style and stigma 2-2.5 mm long, the latter ± spreading, 2-lobed and each lobe again indistinctly 3-5-lobulate. Fruits 1-5 per infructescence, broadly ovoid or oblong, apex obtuse or subacute, base (broadly) obtuse, (2.5-)3-5 by (1.5-) 2-3.5 cm, with stiff rusty hairs 1-2 mm long; dry pericarp 3 mm thick; fruiting pedicel 1-6 mm long.
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Growth form tree
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Foliage retention evergreen
Sexuality dioecy
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Mature height (meter) 5.0 - 30.0
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Hardiness (USDA) 9-12

Usage

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Cultivation

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Distribution

Knema pseudolaurina world distribution map, present in Indonesia, Iceland, Malaysia, New Zealand, Singapore, and Thailand

Identifiers

LSID urn:lsid:ipni.org:names:585916-1
WFO ID wfo-0000356812
COL ID 6NLXZ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Knema pseudolaurina