长帽隔距兰（广西植物）
Cleisostoma longiopeculatum Z. H. Tsi in Guihaia 15 (2): 108, fig. 2. 1995.
Epiphytic on tree trunks in mixed forests; ca. 700 m. S Yunnan.
本种很近勐海隔距兰 Cleisostoma menghaiense Z. H. Tsi, 区别在于本种的唇瓣侧裂片中部以上收狭而其外（前）侧边缘多少对折，距内背壁上方的胼胝体形状也迥然不同。 |
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Stems erect, ca. 2 cm, unbranched. |
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Leaves 4 or 5, subbasal, distichous, flat, linear or narrowly oblong, ± V-shaped-conduplicate, ca. 7 × 0.5 cm, fleshy, subacute. |
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Inflorescence lateral, arching, racemose, laxly several flowered; floral bracts ovate-triangular, ca. 1.5 mm, acute. Flowers opening widely, slightly fleshy; pedicel and ovary ca. 6 mm. Dorsal sepal subspatulate or obliquely obovate, ca. 4 × 2 mm, acute; lateral sepals similar to dorsal sepal, obtuse. Petals oblong, ca. 3.5 × 1.3 mm, obtuse; lip lateral lobes suberect, deltoid, apical margin ± incurved; mid-lobe slightly thickened, deltoid, concave, obtuse; spur somewhat horn-shaped, ca. 4 mm, obtuse, interior longitudinally septate, with a back wall callus; callus T-shaped, base slightly bilobed and densely minutely papillate-hairy. Column ca. 1.5 mm; anther cap ca. 2 mm, truncate; pollinia pyriform, with clavate stipe and suborbicular small viscidium. Fl. Jun.
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