General data | Classifications | List of species | Local names | Back to home page |
Quercus merrillii | |
Author | Seemen 1908 |
Synonyms | Cyclobalanopsis merrillii (Seem.) Schottky 1912 |
Local names | |
Range | Borneo; The Philippines; 100 to 500 m; |
Growth habit | usually small shrub 2 m tall; may reach 10 m, with a trunk to 20 cm in diameter; ; |
Leaves | 2-5 x 1-2 cm; leathery but
thin; oval, oboval or elliptic; apex obtuse; base attenuate; margin entire
or remotely serrulate in apical 1/2; initially densely pubescent both
sides, late-glabrescent; shiny green above, whitish beneath; 6-8 pairs
of secondary veins, parallel, forming an angle of 50-60° with the
midrib, flat or impressed adaxially, raised beneath; petiole 2-3 cm long,
flat obove, densely tomentose, glabrescent; |
Flowers | male catkins 3-4 cm long, with golden brown hairs; male flowers solitary, perianth 6-lobed with golden pubescence, 6-7 stamens; female inflorescence 1-4-flowered, 1-2 cm long, hairy; female flowers tomentose, perianth 4-5-lobed, ovary conical, 3 styles 1-2 cm long; |
Fruits | acorn 2-3 cm; ovoid, conical
or cylindrical; brown, hairless, apex acute, base rounded; enclosed 1/4
or 1/3 by stalkless cup; cupule with 4-8 finely denticulate rings; |
Bark, twigs and |
bark slightly flaky,
greyish brown; twig red brown, villous at first, then becoming glabrescent,
with numerous lenticels; |
Hardiness zone, habitat | not hardy; |
Miscellaneous | -- A. Camus : n° 14; -- Sub-genus Cyclobalanopsis; -- Section Semiserrata, sub-section Chrysotrichae (Menitsky). -- The only one oak species in The Phillipines (in Palawan); -- E.D. Merrill, American botanist; |
Subspecies and varieties |
|
Pictures |
|