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FOC | Family List | FOC Vol. 25 | Orchidaceae | Cleisostoma

5. Cleisostoma uraiense (Hayata) Garay & H. R. Sweet, Orchids S. Ryukyu Islands. 156. 1974.

绿花隔距兰 lü hua ge ju lan

Sarcanthus uraiensis Hayata, Icon. Pl. Formosan. 8: 130. 1919; Cleisostoma viridescens (Fukuyama) Garay; S. viridescens Fukuyama.

Stems erect or pendulous, 20-40 cm, 4-6 mm in diam., many leaved. Leaves distichous, linear or narrowly oblong, 10-20 × 1.2-2 cm, obtuse and unequally bilobed. Inflorescence lateral, opposite to leaves, longer or shorter than leaves, unbranched or with short branches, many flowered; floral bracts deltoid, small, ca. 1 mm. Flowers yellowish green, slightly fleshy; pedicel and ovary 3-5 mm. Dorsal sepal subelliptic or obovate-oblong, concave, ca. 4 × 2.5 mm, obtuse; lateral sepals similar to dorsal sepal, concave. Petals obliquely oblong, 2.5-3.5 × ca. 1.2 mm, obtuse; lip thickly fleshy, base spurred, 3-lobed; lateral lobes erect, falcate-triangular, small; mid-lobe suborbicular, ca. 1 mm; spur ca. 2 mm, front wall callus large, glabrous, slightly septate. Column ca. 2 mm; anther cap slightly narrowed toward apex; stipe slender; viscidium suborbicular. Fl. Apr-Sep.

Epiphytic on tree trunks in forests; ca. 200 m. S Taiwan [Japan (Ryukyu Islands), Philippines].


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