討論:狹葉櫟

山羊百科,林文智老師的植物、山岳、攝影紀錄

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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,

毽子櫟 Quercus sessilifolia Bl.

常綠喬木,高達25米。小枝初時被毛,後無毛,有灰白色蠟層和淡褐色圓形皮孔。冬芽圓錐形,長1-1.5釐米,芽鱗多數,褐色,無毛。葉片革質,長橢圓形至披針狀長橢圓形,長7-14釐米,寬1.5-4釐米,頂端急尖或短漸尖,基部楔形,全緣或頂端有2-4鋸齒,側脈不明顯,每邊10-14條,兩面近同色,無毛;葉柄長0.5-1釐米,無毛。雄花序長5釐米,花序軸被蒼黃色絨毛;雌花序長約1.5釐米,花柱3裂。殼鬥杯形,包著堅果約1/3,直徑1-1.5釐米,高0.5-1釐米,被灰褐色絨毛,具5-7條同心環帶,除下麵2-3環有裂齒外,其餘近全緣。堅果倒卵形至長橢圓狀倒卵形,直徑0.8-1.5釐米,高1.7-2.4釐米,柱座凸起,基部有幾條環紋;果臍微凸起,直徑5-7毫米。花期4-5月,果期10-11月。 產江蘇、浙江、江西、福建、臺灣、湖北、湖南、廣東、廣西、四川、貴州等省區。生於海拔1000-1 700米的山地雜木林中。日本也有分佈。

加里山前山、阿里山、大屯山、新竹五指山、汐止新山、

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