Knema matanensis W.j.de Wilde

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Tree 6-25 m. Twigs sometimes faintly angled, 3-5 mm diameter, with hairs 0.1 mm long or less, early glabrescent; bark smooth, not tending to crack. Leaves coriaceous, oblong(-lanceolate), 14-31 by 4.5-10.5 cm, base attenuate, apex up to 1.5 cm acute-acuminate; olivaceous to brown above; the lower surface at first with sparse stellate (-dendroid) hairs of mixed size, 0.1 mm long or less, subglabrescent; dots absent; midrib broad, ± flat above; nerves 18-26 pairs, little raised above; venation fine, distinct above; petiole 7-18 by 2-5 mm. Inflorescences: sessile, brachyblasts to 20 mm long, single, 2, or 3 together, in male and female 2-5-flowered; flowers with dark rusty hairs 0.1-0.2 mm long; perianth 3-lobed, creamy to yellow inside. Male flowers: pedicel 2-3 mm, bracteole apical, 0.5 mm long, persistent; buds (sub)globose, 2.5(-3) by 2.5-3 mm, cleft c. 4/5, lobes 1.2 mm thick; staminal disc subtriangular, ± flat, 1.5 mm diameter; anthers 7 or 8, stiped, horizontal, 0.2-0.3 mm long, opening ± downwards; androphore 0.5-0.7 mm long. Female flowers: pedicel 1 mm long; buds ovoid-oblong, 4.5 by 2.5 mm, cleft c. 1/2, lobes 1 mm thick; ovary ovoid, 2 by 2 mm, with dense hairs 0.2 mm long; style less than 0.5 mm, stigma 0.5 mm long, of 2 broad lobes, each 3-or 4-lobulate. Fruits 1 or 2 per infructescence, (immature) ellipsoid, 2 by 1.2 cm, with dense dark rusty dendroid hairs 0.2-0.3(-0.5) mm; thickness of mature dry pericarp not known; fruiting pedicel rather stout, 5 mm long.
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Growth form tree
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Foliage retention evergreen
Sexuality dioecy
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Mature height (meter) 6.0 - 25.0
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Usage

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Cultivation

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Distribution

Knema matanensis world distribution map, present in Indonesia

Conservation status

Knema matanensis threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:898053-1
WFO ID wfo-0000356794
COL ID 6NLWN
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Knema matanensis