Knema malayana Warb.

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Tree 3-20 m. Twigs 1-2 mm diameter, at first with rusty stellate scale-like hairs 0.1 mm long or less, glabrescent; bark finely striate, not tending to crack or flake. Leaves membranous, elliptic to oblong-lanceolate, 7-21 by 2-7 cm, base cuneate-attenuate to rounded, apex up to 2.5 cm acute-acuminate; greenish brown above, grey-glaucous beneath, at first with sparse, greyish, scale-like hairs, 0.1 mm long or less, glabrescent; dots absent; midrib raised above; nerves 14-20 pairs, raised above; venation very fine, prominent and distinct above; petiole 7-15 by 1.5-2.5 mm. Inflorescences: sessile, brachyblast simple or bifurcate, to 5 mm long; in male 3-15-flowered, female 1-6-flow-ered; flowers with persistent grey-rusty hairs 0.1 mm long or less; perianth 3-(or 4-) lobed, cream-coloured inside (always?). Male flowers: pedicel 7-15 mm long, bracteole caducous, median or above; buds (depressed) globose, 3-4.5 mm diameter, cleft c. 4/5, lobes 0.6-1.2 mm thick; the staminal disc flat, circular or subtriangular, 2-2.3 mm in diameter; anthers 9-13, shortly stiped, horizontal, 0.3-0.5 mm long, spaced; androphore 0.5-1 mm long. Female flowers: pedicel 6-10 mm long, bracteole (somewhat above) median; buds 4-5 by 2.5-3.5 mm, cleft 1/2-2/3; lobes 1-1.5 mm thick; ovary ovoid, 1.5-2 mm long; style to 0.5 mm long; stigma erect, irregularly peltate, 5-lobed. Fruits 1-3 per infructescence, ellipsoid or obovoid, apex subobtuse, base often narrowed, 1.2-1.6 by 0.8-1 cm, with mealy hairs 0.2-0.4 mm long; dry pericarp 1-1.5 mm thick; fruiting pedicel (4-)6-15 mm long.
Life form -
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality dioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 3.0 - 20.0
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Flower color
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Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light -
Soil humidity -
Soil texture 7-8
Soil acidity -
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Hardiness (USDA) 10-12

Usage

Uses material
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

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Distribution

Knema malayana world distribution map, present in Indonesia, Malaysia, Singapore, and Thailand

Conservation status

Knema malayana threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:585888-1
WFO ID wfo-0000356791
COL ID 6NM8L
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Knema malayana Myristica malayana