Horsfieldia sessilifolia W.j.de Wilde

Species

Angiosperms > Magnoliales > Myristicaceae > Horsfieldia

Characteristics

Tree c. 30 m. Twigs 8-10 mm diameter, twig apex (or leaf buds) not seen; bark glabrous, finely striate and rather densely set with conspicuous lenticels. Leaves chartaceous, oblong-lanceolate, ± parallel-sided, 50 by 14 cm, base broadly rounded to subcordate, apex acute-acuminate; upper surface drying dark brown, glabrous, lower surface with densely interwoven bright-brown hairs 0.1 (-0.3) mm; dots absent; midrib ± flat above; nerves 30(-35) pairs, flat or slightly sunken above, lines of interarching distinct; venation lax, indistinct, on the lower leaf surface hidden by the indumentum; petiole absent or short, 2-3 by 8 mm; leaf bud not seen. Inflorescences (female) with woolly hairs 0.3-0.5 mm long, about 3 times branched, 4-5 by 3.5 cm, rather many-flowered; peduncle 1 by 0.8 cm; bracts oblong-lanceolate, 10 mm long, inside subglabrous, outside pubescent as the inflorescences, caducous; flowers (female) in clusters of 2-5; perianths 3-lobed, minutely pubescent in the lower half. Male flowers: not seen. Female flowers: pedicel stout, 1 mm long, minutely pubescent; buds obovoid-ellipsoid, stout, 4.5-5 by 4-4.5 mm, coriaceous, with hairs 0.1 mm in the lower half, cleft 1/8-1/10, lobes 0.5 mm thick; ovary ovoid, 2.5 by 2.5 mm, subglabrous, with few minute whitish hairs less than 0.1 mm on and near the base of the suture; stigma broadly 2-lipped, 0.2-0.3 by 1.5 mm, the lips not or only faintly lobed. Fruits not seen.
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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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Distribution

Horsfieldia sessilifolia world distribution map, present in Malaysia

Conservation status

Horsfieldia sessilifolia threat status: Critically Endangered

Identifiers

LSID urn:lsid:ipni.org:names:929020-1
WFO ID wfo-0000724946
COL ID 3MQDG
BDTFX ID -
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Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Horsfieldia sessilifolia