| Quercus elmeri | |
| Author | Merrill 1929 Univ. Calif. Publ. Bot. 15: 43 |
| Synonyms | |
| Local names | |
| Range | North Borneo;
Sumatra; Malaysia; to 1500 m; |
| Growth habit | reaches 35 m
tall and more; |
| Leaves | 6-14 x 2-5 cm;
leathery; oblong, elliptic or lanceolate; apex acuminate; base cuneate,
usually asymmetrical; margin plane, remotely denticulate at apical 1/2;
brownish green, glabrous, shiny above; abaxially with greyish brown stellate
tomentum, late-glabrescent; 7-12 pairs of secondary veins raised below,
forming an angle of 60-70° with the midrib; petiole 1-3 cm long, often
flat above, glabrescent; |
| Flowers | male catkins
1.5-3 mm long, pubescent; male flowers pubescent, with 3-4 lobes and 4-5
stamens; pistillate inflorescences 1-2 cm, densely hairy, with 3-4 flowers;
female flowers with 3-4 recurved styles; |
| Fruits | acorn 2.5-3
cm, glabrous, shiny brown, conical or cylindrical, with apex depressed
and base truncate; enclosed 1/4 by cup; silky cup with thick wall, 4-7
denticulate rings; |
|
Bark, twigs and |
greyish
brown, thick bark; twigs reddish pubescent at first, glabrescent, with
numerous lenticels; terminal bud ovoid or subglobose, tomentose, 3-5 mm
across; stipules linear, acute, pubescent, 5-7 mm long; |
| Hardiness zone, habitat | not hardy; wet tropical forests, on basic soils; |
| Miscellaneous |
-- A. Camus : n° 8; -- Sub-genus Cerris, Section Cyclobalanopsis; -- Section Semiserrata, sub-section Semiserratae (Menitsky). -- Named after A.D.E. Elmer, 1870–1942, plant collector in Borneo and the Philippines |
| Subspecies and varieties |
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| Pictures |
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