Quercus chrysotricha
Synonyms (2)
Geographic Range
Borneo (Mt Dulit, Norh of Sarawak); to 1300 m;
Growth Habit
more than 15 m tall;
Leaves
2-5 cm X 1-3; leathery but thin; oboval, elliptic or oval; apex obtuse, round or emarginate ; base narrowed, obtuse or acute, often asymmetrical; margin entire; young leaves with golden pubescence; adult glabrescent both sides except beneath at base of midrib; 4-6 pairs of secondary veins flat above, raised beneath, parallel forming an angle of 60-70° with the midrib; petiole thick, glabrous, flat above, to 0.3 cm long;
Flowers
male catkins 2 cm long, few-flowered, densely golden-brown pubescent; male flowers 3 together,
Fruits
acorn 1.5-2 cm long, ovate conical, pubescent; cup conical with 6-7 glabrous rings;
Hardiness & Habitat
not hardy;
Additional Information
– Sub-genus Cerris, Section Cyclobalanopsis; – Section Semiserrata, sub-section Chrysotrichae ( Menitsky ). – Closely related to Q.litseoides and to Q.merrillii ; – Threatened (IUCN Red List Category : EN)
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