Knema viridis W.j.de Wilde

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Tree 5-30 m. Twigs somewhat flattened or blunt-triangular by ridges from the base of the petioles, (2-)2.5-4.5 mm diameter, at first with dense pale brown hairs 0.2-0.3 mm, early glabrescent; bark yellowish turning purple-brown, not or but little striate, neither cracking nor flaking. Leaves chartaceous or thinly coriaceous, oblong(-lanceolate), 12-30 by 3.5-10.5 cm, base attenuate to rounded, apex blunt to acute; drying greenish above, lower surface early glabrescent, greyish green; dots absent; midrib raised above; nerves 14-23 pairs, raised; venation distinct; petiole 12-18 by 1.5-3 mm. Inflorescences: peduncle up to 2 mm long, brachyblast wart-like, simple or bifurcate, 2-5 mm diameter, in male 8-12-flowered, female 4-7-flowered; flowers with (pale) brown scale-like hairs 0.1 (-0.2) mm; perianth 3-lobed, inside colour not recorded. Male flowers: pedicel stout, 7-10 mm long, bracteole blunt-triangular, 1-1.5 mm long, caducous, about median, the pedicel above the scar distinctly thicker than below; buds depressed-globose, 4.5-5 by 6-7 mm, faintly angled in cross section, cleft 3/4-4/5, lobes (1-)1.5-2 mm thick; staminal disc flat, sometimes convex in the centre, blunt-triangular in outline, 2.5-3 mm diameter, anthers 25-30 (thecae 50-60), sessile, 0.5-0.7 mm long, closely set, ± hidden under the disc below the margin; androphore tapering, 1-1.5 mm long, at base 1 mm diameter. Female flower (slightly immature): pedicel stout, 15-17 mm long, bracteole ± below median; buds depressed-globose, 3.5 by 5 mm, cleft 3/4-4/5, lobes 0.5-1 mm thick; ovary broadly ovoid, 1.5 mm diameter, with dense brown hairs 0.2-0.3 mm at apex, narrowed into a style-like part 0.5 mm, pubescent at base, stigma 1.5 mm diameter, broadly subpeltately 2-(or 3-)lobed and each lobe again shallowly 4-6-lobulate. Fruits 1-3 per infructescence, ellipsoid, broadly rounded at both ends, early glabrescent (hairs not known), bright brown, 5-6 by 4-4.5 cm; dry pericarp 10 mm thick; fruiting pedicel 15 mm long.
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Foliage retention evergreen
Sexuality dioecy
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Mature height (meter) 5.0 - 30.0
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Cultivation

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Distribution

Knema viridis world distribution map, present in Malaysia

Conservation status

Knema viridis threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:931539-1
WFO ID wfo-0000356769
COL ID 6NLXK
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Knema viridis