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Quercus pseudoverticillata | |
Author | Soepadmo1966 Gard. Bull. Singapore 21: 380 |
Synonyms | |
Local names | |
Range | Borneo (Kinabalu
Mount) ; to 1650 m; |
Growth habit | more than 25 m tall; trunk to 0,9 m in diameter; |
Leaves | 7-17 cm x 3-6.5;
coriaceous ; pseudo-whorled at the end of twig; oblanceolate-oblong or
elliptic-lanceolate; margin entire, revolute; apex rounded or obtuse;
, base slightly cordate to auriculate; hairless above; some simple hairs
beneath; 8-15 vein pairs, curved but parallel, forming an angle of 30-45°
with the midrib, flat or slightly impressed adaxially, strongly prominent
beneath; petiole 0.5-1 cm, glabrescent, flat above; |
Flowers | |
Fruits | acorn to 5 cm
long and 3 cm wide, sericeous, apex rounded sometimes depressed, base
flat or convex; cupule bowl-shaped, 10-12 concentric dentate rings; |
Bark, twigs and |
bark
furrowed into numerous, small, rectangular plates; |
Hardiness zone, habitat | not hardy; |
Miscellaneous | -- Sub-genus Cerris, Section
Cyclobalanopsis; -- Section Oidocarpa, sub-section Pseudoverticillatae (Menitsky). -- Very rare species. Threatened (IUCN Red List Category : CR) |
Subspecies and varieties |
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Pictures |