钻柱兰（中国高等植物图鉴）
Pelatantheria rivesii (Guillaum.) T. Tang et F. T. Wang in Acta Phytotax. 1 (1): 54, 101. 1951; Seidenf. in Opera Bot. 95: 115. 1988; Averyanov, Vasc. Pl. Syn. Vietnam. Fl. 1: 135. 1990; Seidenf., l. c. 114: 381, fig. 255. 1992; Averyanov, Iden. Guide Vietnam. Orch.: 387. 1994; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (3): 295. 1995; Z. H. Tsi, S. C. Chen et K. Mori, Wild Orch. China: 109, pl. 250. 1997; 中国兰花全书: 65. 1998.——Sarcanthus rivesii Guillaum. in Bull. Soc. Bot. France 77: 330. 1930 (excl. specim. Pierre). ——Pelatantheria insectifera auct. non (Rchb. f.) Ridl.: 中国高等植物图鉴 5: 759. 图8349. 1976.
Epiphytic on tree trunks or lithophytic on rocks in broad-leaved evergreen forests; 700-1100 m. W Guangxi, S and SW Yunnan [Laos, Vietnam]. |
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Stems to 1 m, ca. 7 mm in diam., often branched. |
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Leaves elliptic, 3-4 × 1-1.5 cm, obtuse and unequally bilobed. |
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Inflorescence 5-10 mm, 2-7-flowered; peduncle very short, with 2 or 3 papery short sheaths; floral bracts ovate-triangular, ca. 1.5 mm, obtuse. Flowers thickly textured, sepals and petals pale yellow with 2 or 3 brown stripes, lip pink; pedicel and ovary ca. 8 mm. Dorsal sepal subelliptic, ca. 4 × 2.2 mm, obtuse; lateral sepals ovate-oblong, broader, obtuse. Petals oblong, ca. 4 × 1.5 mm, obtuse; lip larger than sepals and petals, 3-lobed; lateral lobes erect, ovate-triangular, small, obtuse; mid-lobe broadly ovate-triangular, ca. 6 × 6 mm, base with a papillate callus on either side, apex slightly narrowed and obtuse; spur ca. 3 × 2.5 mm, interior with a longitudinal ridge on front wall gradually broader from entrance down to end, and with an elliptic appendage on back wall. Column ca. 2 mm, with dense white glandular long hairs on front sides. Fl. Oct. |
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