討論:短柱山茶

山羊百科，林文智老師的植物、山岳、攝影紀錄

1. Camellia brevistyla (Hayata) Coh.-Stuart 短柱山茶

Small trees; young branchlets pubescent, glabrescent with age. Leaves elliptic-oblong, 4-5 cm long, 2 cm wide, acute or obtuse at both ends, glabrous on both sides, the margins crenulate, slightly recurved, entire toward the base, the midrib prominent above, the veins impressed; petiole 5 mm long, furrowed, pubescent. Flowers axillary, solitary, sessile, 3 cm across; sepals 5, deciduous, unequal, broadly ovate, 6-8 mm long; petals 5, obovate, 1.5 cm long, 1 cm wide, pubescent without, apex emarginate; stamens about 30, 2-seriate, outer ones longer, filaments mostly as half long as the petals, connate at base; ovary globose, pilose, 1.5 mm in diameter; styles 4, very short, 1 mm long, connate the base, recurved at the apex.

Taiwan, at medium altitudes.

ILAN: Shihmaoshan, Nakamura 5189. CHIAYI: Alishan, Kanehira & Sasaki 16792.

5. Camellia hengchunensis Chang 恆春山茶

Small trees; branches and branchlets terete, glabrous. Leaves thickly coriaceous, obovate-elliptic, 4-5.5 cm long, 2-2.5 cm broad, acute or obtuse at apex, cuneate at base, loosely serrate in upper half, glabrous on both surfaces, the midrib elevated above, lateral veins slightly impressed above, indistinct beneath; petioles 4-6 mm long. Flowers terminal, sessile, solitary or in pairs, white, 2.5 cm across; bracts 3-4; sepals orbicular, 4-5 mm long, pubescent outside; petals elliptic-obovate; 2 cm long, 6 mm wide, emarginate, cuneate at base, glabrous; stamens numerous, anthers versatile, filaments glabrous, 0.5-1 cm long; ovary subglobose, 1.5 mm long, densely pilose; style 5 mm long, glabrous, 3-fid at apex.

Endemic, confined to the southernmost part of Taiwan.

PINGTUNG: Nanjenshan, Peng 3464, Chang 4673.

小枝光滑。葉厚革質，倒卵狀橢圓形，兩面光滑，前半部疏鋸齒緣。花頂生；萼片外表有毛；花瓣與雄蕊光滑；子房密被毛；花柱長 5 mm，光滑。

分佈於恒春半島南仁山一帶森林中。 出風鼻