Hopea johorensis Symington

Species

Angiosperms > Malvales > Dipterocarpaceae > Hopea

Characteristics

Medium-sized trees with stilt roots and reddish powdery bark. Panicles and petals outside persistently greyish buff pubescent, twig apices, petioles and calyx outside caducously so. Twig c. 1 mm ø, ribbed along the leaf traces, becoming blackish; stipule scars small, pale. Leaf bud minute; stipule fugaceous. Leaves 3-7 by 1.5-3.5 cm, ovate, coriaceous; base ± abruptly cuneate, subequal; acumen to 12 mm long, prominent, slender, caudate; nerves many, main nerves c. 16 pairs with many subequal secondary nerves, very slender and hardly elevated beneath, obscure above; midrib slender but distinctly and equally elevated on both surfaces; petiole 7-13 mm long, slender. Panicle to 15 mm long, short, axillary, with short branchlets bearing to 3 flowers. Mature flowers unknown. Stamens 15. Fruit pedicel c. 2 mm long, very slender; 2 longer calyx lobes to 4 by 0.8 cm, spatulate, subacute, tapering to c. 1 mm wide above the to 3 by 3 mm ovate saccate thickened base; 3 shorter lobes to 3 by 3 mm, ovate, subacuminate. Nut to 8 by 4 mm, lanceolate, minutely apiculate.
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Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
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Photosynthetic pathway c3

Environment

Local, on hill ridges.
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Hardiness (USDA) 9-12

Usage

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Edible -
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Cultivation

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Distribution

Hopea johorensis world distribution map, present in India and Malaysia

Conservation status

Hopea johorensis threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:320920-1
WFO ID wfo-0000724565
COL ID 6MCFP
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Hopea johorensis