琉球石斛檢視原始碼討論檢視歷史
| 琉球石斛 |
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中文名:琉球石斛 拼 音:li qi sh h 學 名:Dendrobium okinawense Hatusima & Ida 界:植物界 亞 界:綠色植物亞界 總 門:輪藻總門 門:木賊門（有胚植物門） 亞 門:木賊亞門（維管植物亞門） 綱:木蘭綱（被子植物綱） 亞 綱:百合亞綱 超 目:天門冬超目 目:天門冬目 科:蘭科 屬:石斛屬 種:琉球石斛 |
琉球石斛(liú qiú shí hú)，學名 Dendrobium okinawense Hatusima & Ida，蘭科，石斛屬植物。 [1]
形態特徵
Stems slender, terete, pendulous, 40-70 cm, 4-7 mm in diam., leafy in upper part, internodes cylindric, 2-5 cm, yellowish green.
Leaves linear-lanceolate, 5.5-10 × 0.6-0.8 cm, base rounded, apex acute to obtuse. Inflorescences borne from upper nodes of stem, 1-3-flowered, often 2-flowered;
floral bracts 2 or 3, imbricate, ovate-triangular, 3-6 mm. Flowers usually pale yellow, 3-4 cm wide. Dorsal and lateral sepals lanceolate, 3-4 cm × 3.5-4 mm, acute;
mentum 9-12 mm. Petals lanceolate, 3-4 cm, clawed, acute; lip oblong-lanceolate, ca. 2.5 cm, acute; disk with 2 central keels on basal portion, pilose.
Column ca. 2 mm, foot 8-10 mm, concave; anther cap cucullate, ca. 1.5 mm.
產地生境
Epiphytic in broad-leaved forests; 900-1200 m. Taiwan (Taidong) [Japan].
辨析
This species was first recorded from China by S. W. Chung and S. Y. Lu (Taiwania 52: 106-112. 2007).This species was first recorded from China by S. W. Chung and S. Y. Lu (Taiwania 52: 106-112. 2007).