Quercus salicina

白背櫟

Quercus salicina Blume

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

Blume. 1851. Mus. Bot. 1: 305.

Liao. 1910. Memoirs of the College of Agriculture, National Taiwan University 12(2): tantum. (Mem. Coll. Agr. Natl. Taiwan Univ.)

Quercus stenophylloides Hayata

Nakai. 1939. Journal of Japanese Botany 15: 203. (J. Jpn. Bot.)
Cyclobalanopsis angustissima (Makino) Kudo & Masam. ex Kudo

Kudo & Masam. ex Kudo. 1930. Transactions of the Natural History Society of Formosa 20: 161. (Trans. Nat. Hist. Soc. Formos.)
Cyclobalanopsis stenophylloides (Hayata) Kudo & Masam. ex Kudo

Nakai. 1939. Journal of Japanese Botany 15: 203. (J. Jpn. Bot.)
Cyclobalanopsis salicina (Bl.) Oerst.

Liao. 1987. Quarterly journal (Bulletin) of the experimental forest of National Taiwan University 1(1): 80. (Quart. J. Exp. For. Natl. Taiwan Univ.)

Govaerts, R. & Frodin, D.G. 1998. The Board of Trustees of the Royal Botanic Gardens, Kew. 1-408.

tree

Evergreen trees up to 30 m high, 1 m across; trunk straight; young branchlets grayish-white with light brown short hairs, later glabrous, with numerous lenticels.
Leaves alternate, lanceolate, oblong to oblong-lanceolate, 10–15 cm long, 3–5 cm wide, thin-coriaceous, caudate to acute at apex, acute to obtuse at base, sharply serrate from middle to the apex along margins, lateral veins 8–13 pairs, lustrous above, waxy-white beneath; petioles 1–2.5 cm long, glabrous; young Leaves with densely short light brown hairs, later glabrous.
Staminate caktins 6–9 cm long, sprouting from base of young branchlet; peduncles brown-hairy, pendulous; Staminate flowers yellow; perianth 3–4-lobed, broadly ovate; stamens 4–6. Pistillate spikes short, 3–4-flowered, sprouting from young branchlets; pistillate flowers enclosed in an involucre, 1.5 mm long, with 1 bract and 2 bracteoles, styles 3, stigmas enlarged, recurved.
Cupules cup-like, grayish-brown, scales in 5–6(–7) concentric rings, with dense light grayish-brown hairs, margins serrulate;nuts broadly ellipsoid to broadly ovate-ellipsoid, 1.5–1.8 cm long, 1–1.3 cm wide, deep brown above.

fruit maturing from November.

花	1	2	3	4	5	6	7	8	9	10	11	12
果	1	2	3	4	5	6	7	8	9	10	11	12

台灣 : Taiwan, on ridges at altitude of about 500 m in the northern and southern parts of the island (including Huantitien, Mt. Luchangtashan, Mt. Tawu, Chinshuiying).
世界 : Distributed in the central and southern parts of Japan, the Ryukyus and southern Korea.