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Quercus kerrii | |
Author | Craib 1911 Bull. Misc. Inform. Kew 1911: 471 |
Synonyms | Cyclobalanopsis kerrii (Craib) Hu
1940 dispar Chun & Tsiang 1947, nom. illeg. vestita Rehd. & Wils. in Sarg. 1916 not Griff. 1848 |
Local names | mao ye qing gang ; |
Range | SW China; Thailand;
Vietnam; Myanmar; Laos; 100-1800 m; |
Growth habit | usually 7-8
m, but reaches 20 m; |
Leaves | 10-24 x 3-8
cm; evergreen or nearly so; leathery; oblong-elliptic, lanceolate or oblong-lanceolate;
margin apical 2/3 serrate; apex slightly obtuse to shortly acuminate;
base rounded or broadly cuneate; shiny green above, hairy beneath; midrib
weakly raised underside; 10-14 veins pairs; tertiary veins evident abaxially;
petiole tomentose 1-2 cm long; |
Flowers | March to May; pistillate inflorescence hairy 5-8 cm long; |
Fruits | acorn globose
flattened, 0.7-1.3 cm high, 2-2.8 cm in diameter; apex flat or depressed;
several on a 4 cm long peduncle; slightly raised basal scar, 1-2
cm wide; enclosed 1/4 to 1/2 by cup; cup flat, 0.5-1 cm heigh, 2-3.5 cm
in diameter, with bracts in 7-11 pubescent, entire or denticulate concentric
rings; stylopodium persistent, greyish pubescent; maturing in 1 year;
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Bark, twigs and |
twig
densely tomentose at first, becoming glabrous or nearly so; |
Hardiness zone, habitat | not hardy; scattered in mountains forests; |
Miscellaneous | --A.
Camus : tome 1, p. 339, n° 69; -- Sub-genus Cerris, Section Cyclobalanopsis; -- Section Helferiana, sub-section Helferianae (Menitsky); -- Closely related to Q.helferiana ; according to Hjelmquist 1968, only Q.helferiana, and not Q.kerrii, occurs in China; -- For some Authors (Menitsky, Govaerts & Frodin), Q.kerrii is a synonym of Q.mespilifolia; -- Q.vestita Griff. 1848 (Itin. Pl. Khasyah Mts. 90) is a true species from India (Assam), Myanmar, Laos, may be from Thailand too, with problematic taxonomic status; -- Hybrids with Q. austrocochinchinensis |
Subspecies and varieties |
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