Knema sericea W.j.de Wilde

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Tree 10-20 m. Twigs 4-5 mm diameter, at first with dense grey-rusty scale-like hairs 0.1 mm long or less, glabrescent; bark finely striate, not tending to crack or flake. Leaves membranous or chartaceous, oblong(-lanceolate), 30-45 by 9-15.5 cm, apex rounded, retuse, or acute-acuminate, base rounded to shallowly cordate, with the basal nerves somewhat crowded, drying greenish to blackish brown above, lower surface very finely papillate or not, with persistent short, dense, greyish brown or pale cinnamon hairs 0.2 mm long, silky to the touch, mixed with sparse somewhat stouter ones; dots absent; midrib raised above; nerves 30-35 pairs, raised above; venation very fine, distinct; petiole 12-20 by 4-6 mm. Inflorescences: peduncle stout, 5-7 mm long, brachyblast ± simple, 5 mm diameter; in male 4-10-flowered, female 2-5-flowered; flowers with dense greyish brown scurfy hairs 0.1 mm long; perianth 3-lobed, colour inside not known. Male flowers: pedicel 12-18 mm long, bracteole caducous, (sub)apical; buds subglobose, 6-10 mm diameter, cleft c. 4/5, lobes 0.5 mm thick; staminal disc circular, convex to mammillate, 3 mm diameter; anthers 10-15, long-stiped, ± hanging down, horizontal, or slightly curved upwards, 0.6-0.7 mm long, not touching; androphore 0.5 mm long. Female flowers not known. Fruits 1 or 2 per infructescence, subglobose to broadly ovoid, apex 1-2 mm beaked, 3.5-5 by 3.5-4 cm, with grey-brown to rusty scale-like hairs 0.1 mm long; dry pericarp 5 mm thick; fruiting pedicel 15-20 mm, with scar of bracteole at or somewhat above the middle.
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Growth form tree
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Foliage retention evergreen
Sexuality dioecy
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Mature height (meter) 10.0 - 20.0
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Hardiness (USDA) 10-12

Usage

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Cultivation

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Distribution

Knema sericea world distribution map, present in Brunei Darussalam, Indonesia, and Malaysia

Conservation status

Knema sericea threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:585927-1
WFO ID wfo-0000356762
COL ID 6NLXQ
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Knema sericea