Dendrobium moniliforme ssp. okinawense
琉球石斛
Dendrobium moniliforme (L.) Sw. ssp. okinawense (Hatusima & Ida) T.P. Lin
名彙資訊
特徵描述
典藏標本
數位照片
分布位置
相關資訊
名彙資訊
學名發表文獻
Lin et al., Taiwania 61(2): 93. 2016.
台灣首次記錄發表文獻
同發表文獻
異名
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Dendrobium okinawense Hatusima & Ida
各語言俗名
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中琉球石斛.
特徵描述
生活型
herb
形態特徵
- Stems slender, terete, pendulous, 40-70 cm long, 4-7 mm in diam., leafy in upper part, the internodes cylindrical, 2-5 cm long, yellowish green.
- Leaves linear-lanceolate, about 5.5-10 cm long, 6-8 mm wide, apex acute to obtuse, base rounded.
- Flowers 1-3, often 2, borne from the upper nodes of stems, usually pale yellow, rarely white, bracts 2-3, imbricate, ovate-triangular, 3-6 mm long, opening up to about 3-4 cm in diameter; dorsal sepals lanceolate, 3-4 cm long, 3.5-4 mm wide, apex acute, lateral sepals similar to dorsal one, base adnate to foot of column forming a mentum 9-12 mm long; petals lanceolate, as long as dorsal petal, apex acute, claw at base; lip oblong-lanceolate, about 2.5 cm long, apex acute, with two keels at the middle of the basal lip, pilose; column ca. 2 mm long, foot 8-10 mm long, concave; anther hood-like, 1.5 mm long; pollinia 1 mm long.
物候
Flowering season: March to April.
分布
- 台灣 : Southeastern Taiwan.
- 世界 : the Ryukyu Island of Japan.