Knema steenisii W.j.de Wilde

Species

Angiosperms > Magnoliales > Myristicaceae > Knema

Characteristics

Tree. Twigs 1—2(—3) mm diameter, with stellate scale-like and dendroid hairs 0.1-0.2 mm long, glabrescent; bark smooth or finely striate, not tending to crack. Leaves membranous or thinly chartaceous, (oblong-)lanceolate, 7-19 by 2-6 cm, base attenuate or narrowly rounded, apex acute(-acuminate); drying olivaceous or brown above; lower surface with subpersistent mixed scale-like and dendroid hairs 0.1 mm long or less, and with few emergent ones up to 0.4 mm; dots absent; midrib slightly raised; nerves 15-25 pairs, little raised; venation ± distinct; petiole 10-15 by 1-1.5 mm, late glabrescent. Inflorescences: sessile, brachyblast simple, 1-4 mm long; in male and female 1-5-flow-ered; flowers with rusty hairs 0.1-0.2 mm; perianth 3-lobed, pinkish(?) inside. Male flowers: pedicel 2-3 mm, bracteole 0.5 mm long, about median, caducous; buds obovoid or pear-shaped, at base tapering, apex ± truncate, 2.8-3.5 by 2-2.2 mm, cleft c. 5/6, lobes 0.3-0.4 mm thick, inside at apex knobby; staminal disc circular, ± flat, 0.8 mm diameter; anthers 4 or 5, just stiped, suberect, 0.4(-0.5) mm long; androphore slender, slightly tapering, 1.1-1.5 mm long. Female flowers: pedicel 0.5-1.5 mm long; buds ovoid-oblong, 5-6 by 1.5-2.5 mm, cleft slightly over 1/2, lobes 0.5 mm thick; ovary ovoid-ellipsoid, 2 mm long, with dense hairs 0.2(-0.3) mm, style glabrous, 1 mm long, stigma 1-1.5 mm long, of 2 erect lobes, 1-1.5 mm long, each entire or faintly 2-lobulate at apex. Fruits l(-3?) per infructescence; ellipsoid-oblong, apex subacute, 2.2-2.4 by 1 cm, with brown-grey hairs 0.2-0.3(-0.5) mm long, late glabrescent; dry pericarp 0.5 mm thick; fruiting pedicel 1-1.5 mm long.
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Growth form tree
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Foliage retention evergreen
Sexuality dioecy
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Cultivation

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Conservation status

Knema steenisii threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:898054-1
WFO ID wfo-0000356765
COL ID 6NLXS
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Knema steenisii