| Quercus myrsinifolia | |
| Author | Blume 1850 Mus. Bot. 1: 305 |
| Synonyms | Cyclobalanopsis
myrsinifolia (Blume) Oerstedt 1871 bambusaefolia Fortune 1860 not Hance 1857 bambusifolia Mast. not Hance glauca fo. subintegrifolia Ling 1952 vibrayeana Franch. & Sav. 1878 |
| Local names | shira-kashi ;
xiao ye qing gang ; |
| Range | South China (Anhui, Fujian, Guangdong, Guangxi, Guizhou, Henan, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, Taiwan, Yunnan, Zhejiang); Japan; Korea; Laos; Thailand; Vietnam; 200-2500 m; introduced in Europe in 1854 by Robert Fortune: |
| Growth habit | to 10 m tall,
sometimes more, but shrubby in cultivation; often multitrunk; the width
of crown is the same as the height of the tree; |
| Leaves | 5-12 x 2-4 cm
; evergreen (2 years); oval to elliptic-lanceolate; hard; hairless on
both sides; light green above, slightly glaucous beneath; young leaves
are purple-bronze, glabrous; remotely dentate in apical half; apex acuminate
to shortly caudate, base cuneate or almost rounded; 9-14 vein pairs, straight,
with midrib slightly impressed above; petiole 1.5 cm long, yellow green,
hairless; |
| Flowers | male flowers
in early summer; pistillate flowers on young shoots, 2 to 6 on a slender
peduncle; |
| Fruits | acorn 1.4-2.5 cm long, 1-1.5 cm wide; in clusters of 2 to 8, on a 3-4 cm long peduncle; dark brown; enclosed 1/3 or 1/2 by cup; cup 5-8 mm long, 10-18 cm wide, whitish pubescent outside, glabrous inside, thin (less than 1 mm), with 6-9 concentric rings, not denticulate at margin; scar flat, 5 mm in diameter; stylopodium evident, with 5-6 rings; maturing first year; |
|
Bark, twigs and |
bark
dark pinkish-grey, smooth, with thin orangish furrows; twigs hairless,
slender, grey brown, with raised lenticels looking like warty; buds ovoid,
obtuse, hairy at tip, 3-6 mm long; |
| Hardiness zone, habitat | hardy;
prefers lime-free soils; rather slow-growing ; |
| Miscellaneous | --
A. Camus : n° 40 ; -- Sub-genus Cerris, Section Cyclobalanopsis; -- Section Glauca, sub-section Glaucae (Menitsky); -- Also written "myrsinaefolia" -- For Govaerts & Frodin (1998) it was a synonym of Q.glauca ..but later (2002) they consider there are 2 true species. |
| Subspecies and varieties |
_
Q.vibrayeana is probably a true species, in South Japan,
different from Q.myrsinifolia in having larger, adaxially dark
green, abaxially silvery leaves, with 12-15 vein pairs; hardy; all types
of soils; handsome small tree with a shrubby habit; |
| Pictures |
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