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Quercus hypophaea | |
Author |
Hayata 1913 Icon. Pl. Formosan. 3: 182 1913 Diagnosis here |
Synonyms | Cyclobalanopsis hypophaea (Hayata
) Kudo 1931 Lithocarpus hypophaeus (Hayata) Hayata 1917 Pasania hypophaea (Hayata) Li |
Local names | rong
mao qing gang; |
Range | SE Taiwan, 0
to 1100 m: |
Growth habit | reaches 18 m
high; trunk to 1.2 m in diameter and more; |
Leaves | 5-9.5 x 1.5-2.3 cm; narrowly elliptic-lanceolate, or lanceolate or oval-lanceolate; subleathery; green and hairless above, tomentose beneath with stellate hairs; base acute or cuneate; apex pointed, acuminate; margin entire without teeth; midrib raised under; 8-14 slender vein pairs, not evident; petiole 5-10 mm, triangular in cross-section, densely tomentose; |
Flowers | December-January; male catkins 5 cm long; flowers with filaments glabrous, anthers puberulent; female inflorescences with flowers to 2 mm in diameter, with hairy ovaries and enlarged anthers at tip; |
Fruits |
acorn 1.7-2 cm long, 1.3-1.8 cm in diameter, oblate to broadly ovoid or subglobose; shortly mucronate; basal scar 5-8 mm wide, slightly raised; cup enclosing only base of nut, flat, 1.6 cm in diameter, with 7-11 concentric crenate rings ; maturing in January or February of following year; |
Bark, twigs and |
reddish
brown bark; twig slender with whitish hairs, then hairless; small lenticels;
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Hardiness zone, habitat | not
hardy; in broad-leaves evergreen forests; |
Miscellaneous | --
A. Camus : tome 1, p. 364, n° 83; -- Sub-genus Cerris, Section Cyclobalanopsis; |
Subspecies and varieties |
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Pictures |
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