討論:狹葉櫟

山羊百科，林文智老師的植物、山岳、攝影紀錄

狹葉櫟　Quercus stenophylloides Hayata

53. 臺灣窄葉青岡 Cyclobalanopsis stenophylloides (Hayata) Kudo et Masamune

常綠喬木，高17米，樹皮灰白色，開裂。小枝較細，淺灰色，無毛。葉片革質，長橢圓狀披針形，長7-12釐米，寬1.5-3.5釐米，頂端漸尖，基部圓形，葉緣有短芒狀鋸齒，側脈每邊11-13條，直達齒端，葉面綠色，葉背有白粉及平伏單毛，有時毛脫淨；葉柄長1.5-2釐米，無毛。雄花序長7釐米；雌花序長2-2.5釐米，著生花6-7朵。殼鬥杯形，包著堅果1/2，直徑1.2釐米，高1-1.5釐米；小苞片合生成7-8條同心環帶，環帶邊緣有裂齒，被短絨毛。堅果橢圓形，直徑1.5釐米，高1.7-2釐米，無毛，柱座明顯，有環紋3條，果臍平坦。花期4-5月，果期翌年9-10月。

產臺灣中央山脈。生於海拔1 100-2 600米的山地森林中。

9. Quercus tatakaensis Tomiya in Trans. Nat. Hist. Soc. Form. 34(252): 346. 1944. 銳葉高山櫟

Medium-sized evergreen trees to 15 m high; trunks 0.3 m across, crooked or straight; branches grayish, glabrous, with minutely lenticels; branchlets with dark brown stellate hairs. Leaves ovate, elliptic, oblong or lanceolate, often obliquely ovate-elliptic, 6.5-16 cm long, 2.7-6.2 cm broad, coriaceous, acute to acuminate at apex, rounded, obtuse-acute, slightly cordate to acuminate at base, entire to few-serrulate or aristate-serrulate, glabrous on both sides, sparsely stellate-tomentose on midrib, midrib, veins and veinlets grooved above, prominently elevated beneath, lateral veins 7-16 pairs, often forked; petioles glabrescent to tomentose, 0.6-1.7 cm long. Cupules cup-shaped, 8 mm high, 1 cm across; scales in many series, triangular, imbricate, appressed-hirsute outside, appressed sericeous-hirsute inside; nuts elongate-ellipsoid, 2.2 cm long, 1.1 cm across, apiculate at apex, rounded at base, glabrous.

Endemic. Usually growing on soil or limestone at 1,500 to 2,600 m throughout the island.

TAOYUAN: Litungshan, Nakai & Tanaka 7652. HUALIEN: Chingshuishan, Nakamura 3610. HSINCHU: Hsinchu, Nakai & Tanaka 7653. CHIAYI: Yushan, Suzuki 36763; Tataka, Tomiya 146; TAITUNG: Compartment 50, Kueihu, Chihpen, Liao 11155. 魯璧；畢祿山工作站 小汁灰褐色，葉表光滑，葉背光滑或被黃褐色毛茸，側脈９－１１對，全緣或先端少數鋸齒，葉柄５－１５cm，