撕裂贝母兰
Coelogyne sanderae Kraenzl. in Reichenbachia t. 52. 1893; Pfitz. et Kraenzl. in Engler’s Pflanzenreich (50) Heft 32: 79. t. 28, fig. 29 (B). 1907; W. W. Smith in Not. Bot. Gard. Edinb. 13: 200. 1921; S. Y. Hu in Quart. J. Taiwan Mus. 25 (3, 4): 226. 1972; Seidenf. in Opera Bot. 114: 117. 1992; Averyanov, Iden. Guide Vietnam. Orch. 398. 1994; Z. H. Tsi et S. C. Chen in Acta Phytotax. Sin. 33 (3): 290. 1995; 中国兰花全书201.图6-21 (7, 8). 1998.
On tree trunks or rocks at forest margins; 1000-2300 m. S Yunnan [Myanmar, Vietnam]. |
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Rhizome stout, 6-8 mm in diam., covered with scaly sheaths, with rather short internodes. |
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| Pseudobulbs 1.5-3 cm apart on rhizome, yellowish when dried, lucid, usually narrowly ovoid to narrowly ovoid-oblong, 3-8 × 1-2 cm, with 2 leaves at apex and several sheaths at base. |
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Leaf blade oblong to oblong-lanceolate, 9-20 × 2.8-4.6 cm, apex acuminate; petiole 1.5-4 cm. |
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Inflorescence hysteranthous, 20-25 cm, somewhat stout, with 10 imbricate, convolute, sheathing sterile bracts at interface between peduncle and rachis forming a tube 2.5-4.5 × 0.6-0.8 cm; rachis 4-6-flowered; floral bracts caducous; pedicel and ovary 15-20 mm. Flowers white, with yellow spots on lip. Sepals oblong or oblong-lanceolate, 26-30 × 8-10 mm, apex acuminate. Petals linear, ca. 28 × 2 mm; lip subovate, 25-29 × 20-24 mm, 3-lobed; lateral lobes erect, nearly suborbicular, margins ± dentate or shortly fimbriate; mid-lobe nearly broadly ovate or oblong, 10-13 × 9-11 mm, margin irregularly dentate or shortly fimbriate; callus with 3 lacerate-fimbriate brownish lamellae extending to mid-lobe, median lamella slightly shorter. Column arcuate, ca. 17 mm, both sides winged; wings widened from base to apex, upper part ca. 1.5 mm wide on one side, apex obtuse. Capsule nearly narrowly obovoid, trigonous, 3.3-3.6 × ca. 1.5 cm. Fl. Mar-Apr, fr. Jun. |
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