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Quercus gulielmi-treleasei | |
Author |
C.H.Muller 1942 Misc. Publ. U.S. Dept. Agric. 477: 58 Diagnosis here |
Synonyms | chiriquina Trel. ex C.H.Mull. 1942 seemannii var. gulielmi-treleasei (C.H.Mull.) E.Murray 1983 seemannii subsp gulielmi-treleasei (C.H Mull.) E.Murray 1983 |
Local names | |
Range | Costa Rica (2600
m) ; Panama (1500 m) ; |
Growth habit | more than 30
m; |
Leaves | 8-20 cm long, 2-6 wide; evergreen or tardily deciduous; narrowly elliptic-oblong, to lanceolate or oblanceolate, often assymetrical or curved on one side; base cuneate or attenuate; apex acuminate, sometimes bristle-tipped; margin entire, slightly wavy; dark green, hairles, shiny above; sometimes some stellate hairs at base and along midrib beneath; 15-20 vein pairs impressed above, prominent beneath; petiole 3 mm long, stellate pubescent; |
Flowers | |
Fruits | acorn subglobose,
1.2 cm in diameter; apex flattened; singly or paired on a 2-4 cm long
peduncle; enclosed 1/3 or less in cup; cup more or less deep, with pubescent
scales; basal scar 7-9 mm long; maturing in 1 year; |
Bark, twigs and |
bark greyish black or dark brown; twigs 1.5-4 mm thick, soon glabrous, with conspicuous lenticels; bud 3-4 mm long, ovoid, with slightly pubescent and lustrous scales; stipules soon deciduous; |
Hardiness zone, habitat | not hardy; |
Miscellaneous | --
A. Camus : n° 354; -- Sub-genus Quercus, section Lobatae, Series Erythromexicanae; -- Threatened (IUCN Red List Category : VU). -- Very closely related (variety, subspecies, ecotype ?) to Q. seemannii (= Q. salicifolia subsp seemannii) -- For Burger, in 1977, Q.seemannii is a complex, because of its great variability, integrating probably Q. gulielmi-treleasei and Q. tonduzii. |
Subspecies and varieties |
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Pictures |
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