Knema subhirtella W.j.de Wilde

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Tree 5-25 m. Twigs sometimes blunt-triangular, 1.5-2(-2.5) mm diameter, with grey-brown or pale rusty hairs 0.1-0.3 mm long, glabrescent; bark faintly or finely striate, not flaking. Leaves membranous, elliptic-oblong or lanceolate, 9-20 by 1.5-5.5 cm, base short-to long-cuneate, apex acute-acuminate, drying olivaceous to brown above, lower surface with persistent sparse hairs of mixed sizes, 0.1-0.2(-0.3) mm; dots absent; the midrib raised above; nerves 15-25 pairs, ± flat or raised above, venation coarse, distinct; petiole ± late glabrescent, 8-12 by 1-2 mm. Inflorescences: peduncle up to 1 mm long, brachyblast simple or forked, to 4 mm long; in male 4-7-flowered, female 1-4-flow-ered; flowers with dense hairs 0.1-0.3 mm long; perianth 3-lobed, creamy greenish inside. Male flowers: pedicel 2-5 mm long, bracteole late caducous, 0.5-1.5 mm below the apex; buds broadly obovoid, 2.5-3.5(-4) by 2.5-3.5 mm, cleft (l/2-)2/3-3/4, lobes 0.5 mm thick; staminal disc circular, flat or somewhat convex, 1.2—1.5(—2) mm diameter, anthers 7-15, short-stiped, 0.3-0.4 mm long, horizontal (opening downwards), not touching; androphore little tapering, 1-1.5 mm long, glabrous or with some minute stellate hairs towards the base. Female flowers: pedicel 4-7 (-10) mm, bracteole ± median; buds ± obovoid, 5 by 3 mm, cleft c. 1/2, lobes 0.5 mm thick; ovary 2.5 by 1.5 mm, with dense hairs 0.1 mm long or less, stigma subsessile, 1.5 mm high, 2-lobed, each lobe ± 2-or 3-lobulate. Fruits solitary or 2 per infructescence, broadly ellipsoid, 2-2.7 by 1.5-2 cm, with dense hairs 0.1 mm long, dry pericarp 1.5 mm thick; fruiting pedicel 4-10 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 - 25.0
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Environment

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Hardiness (USDA) 10-12

Usage

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Cultivation

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Distribution

Knema subhirtella world distribution map, present in Brunei Darussalam and Malaysia

Conservation status

Knema subhirtella threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:931540-1
WFO ID wfo-0000356747
COL ID 6NM9R
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Knema subhirtella