Hopea cagayanensis (Foxw.) Slooten

Species

Angiosperms > Malvales > Dipterocarpaceae > Hopea

Characteristics

Large, flaky-barked tree. Twigs, leaf bud, stipules, petioles, domatia and parts of petals exposed in bud densely persistently tawny pubescent; nerves and midrib above caducously so; panicle and nerves and midrib beneath sparsely caducously so. Twigs c. 1 mm Ø apically, slender, much branched, becoming smooth, terete. Buds c. 2 by 1 mm, small, ovoid; stipules to 4 mm long, linear, not at first caducous. Leaves 8-10 by 2.5-4 cm, lanceolate, thinly coriaceous; base unequal, broadly cuneate or obtuse on the adaxial side, subcordate on the abaxial; acumen to 1.5 cm long, slender, subcaudate; nerves 9-12 (to 14 in young trees) pairs, slender but prominent beneath, applanate above, arched, at 55°-65°, with domatia; secondary nerves short, obscure; tertiary nerves densely scalariform, evident and +-elevated beneath; midrib slender but evident and distinctly elevated on both surfaces; petiole 5-7 mm long, short. Panicle to 5 cm long, to 2-axillary, slender; singly branched, branchlets bearing to 3 flowers; bracts and bracteoles to 1 mm long, minute, deltoid, not at first caducous. Flower bud to 2.5 by 1.5 mm, ellipsoid. Sepals subequal, broadly ovate, shortly acuminate. Stamens 15, shorter than style, in 3 ± unequal verticils; filaments broad and compressed at base, tapering and filiform in the distal 1/2; anthers broadly oblong; appendages c. twice length of anther, slender. Ovary small, ovoid, tapering into an equally long somewhat narrower cylindrical punctate stylopodium and shorter columnar style. Fruit subsessile; sepals short, subequal; adpressed to the nut; outer 2 to 9 by 7 mm, ovate-acuminate, incrassate; inner 3 to 10 by 10 mm, broadly ovate, obtuse, thin. Nut to 15 by 10 mm, ovoid, apiculate, ± thinly resin-coated.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
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Photosynthetic pathway c3

Environment

Locally frequent in dense, semi-evergreen, lowland forests.
More
Locally frequent, semi-evergreen forests.
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Hardiness (USDA) 8-12

Usage

Uses. House posts.
Uses material wood
Edible -
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Cultivation

Can be grown by seedlings.
Mode seedlings
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Distribution

Hopea cagayanensis world distribution map, present in Philippines

Conservation status

Hopea cagayanensis threat status: Endangered

Identifiers

LSID urn:lsid:ipni.org:names:320858-1
WFO ID wfo-0000724499
COL ID 3MJCX
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Balanocarpus cagayanensis Hopea cagayanensis