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Quercus kiukiangensis | |
Author | (Y.T.Chang)Y.T.Chang 1992 Guihaia 12: 303 |
Synonyms | Cyclobalanopsis kiukiangensis Y.T.Chang
1976 Cyclobalanopsis xizangensis Y.C.Hsu & H.Wei Jen 1979 xizangensis (Hsu & Wei Jen) C.C.Huang & Y.T.Chang 1982 |
Local names | qiu jiang qing gang ; |
Range | China
(Tibet, NW Yunnan) ; 1300-2000 m ; |
Growth habit | reaches
30 m tall; |
Leaves | 10-18
x 3.5-8.5 cm; oblong-elliptic; leathery; apex pointed, acuminate to caudate;
base rounded or broadly cuneate; whitish beneath with some scattered simple
hairs; margin with sharp teeth in apical 1/2; midvein and 10-13 vein pairs,
raised beneath, impressed adaxially; tertiary veins slender, parallel,
evident beneath; petiole 1.5-2.5 cm, hairless; |
Flowers | |
Fruits | acorn
globose, ovoid or conical, 1.5-3 cm long, 1.4-1.7 cm in diameter; glabrous;
cup enclosing 1/2 of nut; cup 1.2-1.5 cm long 1.8-2.2 cm wide, 1.5-3 mm
thick, both sides tomentose, with bracts in 6-9 concentric rings (only
the basal rings are slightly dentate); scar 8 mm in diameter, convex;
stylopodium persistent, ringed; maturing in 1 year; |
Bark, twigs and |
twig thick, with numerous brownish raised lenticels; |
Hardiness zone, habitat | not quite hardy; |
Miscellaneous | -- Sub-genus Cerris, Section
Cyclobalanopsis -- Threatened (IUCN Red List Category : EN) |
Subspecies and varieties |
For
today's authors (Zhou & Sun 1996, Govaerts & Frodin 1998), Q.
xizangensis is a variety : = Q.xizangensis (Hsu & Wei Jen ) Huang & Chang 1992 = Cyclobalanopsis xizangensis Hsu & Wei Jen 1979 = Q.kiukiangensis var. xizangensis (Hsu & Wei Jen) Zhou & Sun 1996 China (Motuo), in evergreen broadleaves forests, at 1500-2000 m ; |
Pictures | drawing1
drawing 2 |