Myristica tenuivenia J.Sinclair

Species

Angiosperms > Magnoliales > Myristicaceae > Myristica

Characteristics

Tree 10-30 m. Twigs (sub)terete or 2-lined, 2.5-3(-5) mm diameter, early glabrescent, hairs 0.1-0.2 mm; older twigs with few scattered small lenticels. Leaves membranous, chartaceous or subcoriaceous, obovate-elliptic or oblong, 8-17 by 3-7 cm, base short-attenuate or rounded, apex (short-)attenuate with blunt tip; upper surface olivaceous or (dark) brown, lower surface greyish cinnamon, indumentum persistent, hairs scale-like, 0.1 mm or less; not papillose; dots absent; midrib above flat or slightly raised, lateral nerves 16-23 per side, at 60-80° to the midrib, thin and sunken above, (hardly) raised below, lines of interarching and venation faint; petioles 16-22 by 2-3.5 mm; leaf bud 15-20 by 2.5 mm, hairs 0.1-0.3 mm. Inflorescences (known only from female flowers and infructescences) between the leaves and below, of the Knema-type: a sessile, simple or 2-3-forked, scar-covered, woody knob-like brachyblast, 1-3 mm diameter, with hairs 0.2-0.5 mm, with a fascicle of 4-10 flowers, buds of various sizes or almost equal in size. Male flowers not seen. Female flowers: with hairs 0.2-0.4 mm; pedicel 1-4 mm long, bracteole 1.5 mm long, caducous; buds hard-carnose, ovoid, 3-4 by 2.5-3 mm, lobes 1.5 mm long; ovary ovoid, 2 by 1.5 mm, hairs 0.5 mm or less. Fruits 1 or 2 per infructescence, broadly ellipsoid or (sub)globose, 3-4 cm long, hairs rusty, 0.2-0.5 mm, partly glabrescent; pericarp 4-8 mm thick, fleshy or woody, seeds ellipsoid, 1.5-2.5 cm; fruiting pedicel rather stout, 2-7 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) 10.0 - 30.0
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Hardiness (USDA) 9-12

Usage

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Cultivation

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Distribution

Myristica tenuivenia world distribution map, present in Cayman Islands and Papua New Guinea

Conservation status

Myristica tenuivenia threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:586337-1
WFO ID wfo-0000447650
COL ID 459X5
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR) Link

Synonyms

Myristica tenuivenia

Lower taxons

Myristica tenuivenia subsp. lignosa