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| 資料編號: | HK-3210 |
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| 中文名稱: | 細小叉柱蘭 |
| 學名: | Cheirostylis pusilla [找同屬植物] |
| 植物科名: (APG新系統) | ORCHIDACEAE蘭科 [找同科植物] |
| 標室舊系統 | ORCHIDACEAE蘭科[找同科] |
| 生長習性: | 草本 |
| 原生/外來: | 香港原生植物 |
| 圖片花色: | white |
| 特別特徵: | 香港植物名錄2012新記錄品種 |
| 資料更新: | 20220816 10:46:40 pm |
| 備註: Thanks King SIR's info: 為香港植物名錄2012新記錄品種，2011年首先在大帽山發現。夏季八月花期，立秋後已經結果，是香港六個叉柱蘭屬品中開花最晚。開白色小花，而種子透過風力傳播。此蘭是地生草本，肉質根狀莖一般身長只有10厘米，節間具毛蟲狀的根，葉片會有些微閃爍反光。發現之前以往只在中國雲南、南印度、泰國、馬來西亞等地有記錄，而在港發現，專家估計可能是其種子輕，直俓僅得幾微米，可隨風飄行至6000公里，隨風「飄流」到港。生境在溪澗邊的濕石縫隙上，陰生，只少許散射陽光。被定為瀕危物種。 Ref photo - herbarium.gov.hk 2011年在大嶼山發現的細小叉柱蘭（Cheirostylis pusilla），同樣是嘉道理農場暨植物園植物學家 Stephan W. Gale 所發現的。 Reference FOC(Eng.) Plants 4-6 cm tall. Rhizome elongate, creeping, moniliform, ca. 0.2 cm in diam. Stem erect, terete, 1.5-3 cm, 3-6-leaved. Leaves scattered along stem, green, ovate, 0.4-0.7 × 0.2-0.4 cm, glabrous, base truncate-rounded, apex acute; petiole-like base and sheath 0.2-0.4 cm. Inflorescence 1-2.5 cm, glabrous to very sparsely pubescent, with 1 or 2 sterile bracts; rachis to 0.4 cm, 1- or 2-flowered; floral bracts ovate, ca. 3 mm, shorter than ovary, apex acuminate. Flowers white, small, suberect; ovary cylindric-fusiform, 3-4.5 mm including pedicel, glabrous. Sepals 2.5-3 mm, connate for ca. 1/2 of length and forming a tube; free apical lobes ca. 1.2 mm, apex acute. Petals[花瓣] appressed to dorsal sepal[萼片], spatulate, slightly oblique, ca. 3 mm, 1-veined, apex obtuse; lip 4-6 mm, 3-partite; hypochile shallowly saccate, containing 2 bifid calli; mesochile ca. 1.5 mm, adaxially with glandular hairs; epichile ca. 2.5 × 3.5-4 mm, 2-lobed; lobes flabellate, ca. 2 mm, apex truncate and with irregular shallow notches. Column ca. 1.5 mm; stelidia linear; anther ovoid; rostellum arms ca. 1.5 mm. Fl. Oct. | |
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