Knema kunstleri Warb.

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Tree 5-30 m. Twigs 1.5-3(-4) mm diameter, at first with rusty, chocolate, or grey-brown hairs 0.1-0.2 mm long or less, glabrescent; bark striate or not, not tending to crack or flake. Leaves membranous or coriaceous, variable, broadly elliptic or ovate, to oblong-lanceolate, 5-28 by (1.5—)2—10 cm, base attenuate to broadly rounded, apex sub-obtuse to acute(-acuminate); greenish to brown above, the lower surface greyish, finely papillate, with (sub)persistent golden to grey-brown, mostly stellate scale-like hairs 0.1 mm long (0.3 mm in subsp. pseudostellata); ± dense or remote dots, especially present on the veinlets; midrib raised above; nerves 6-18 pairs, raised above; venation fine or coarse, raised and distinct or not (in subsp. kunstleri raised and of a lighter colour); petiole 5-20 by 1.5-3 mm. Inflorescences: sessile or pedunculate, up to 5 mm, sometimes supra-axillary, brachyblast simple, warted, or ± forked, 2-4 mm long; in male 3-15-flowered, female 1-5-flowered; flowers with persistent scale-like hairs 0.1-0.2 mm long, perianth 3-(or 4-)lobed, reddish or cream inside (subsp. coriacea and alpina always creamy?). Male flowers: pedicel 5-11 mm long, bracteole subpersistent, median or somewhat above, rarely nearly apical; buds (depressed) globose, sometimes ± angular, 2.5-3(-4) mm diameter, cleft nearly to the base, lobes 0.5-1 mm thick; staminal disc flat or slightly convex, circular or somewhat angular, 1.3-2(-3) mm diameter; anthers 8-14, just to distinctly stiped, 0.3-0.6 mm, horizontal, spaced; androphore 0.5-1 mm long. Female flowers: pedicel 2-9 mm long, bracteole about median or subapical; buds ± obovoid, 4-5 by 2.5-3.5 mm, cleft c. 1/2, lobes 1(—1.5) mm thick; ovary ovoid, 2 mm long; stigma subsessile, 2-lobed and each lobe again 2-5-lobulate. Fruits 1-4 per infructescence, subglobose or ellipsoid, 1.5-4.2 by 1-2.8 cm, base rounded or narrowed, apex rounded to subacute, with minute scale-like hairs 0.2 mm long or less, sometimes seemingly glabrous; dry pericarp 1-2 mm thick; fruiting pedicel 3-15 mm long.
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Growth form tree
Growth support free-standing
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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