扁葶鸢尾兰  转到中国兰科植物志

Oberonia pachyrachis  分类来源:中国植物志

扁葶鸢尾兰(新拟) 

Oberonia pachyrachis Rchb. f. ex Hook. f., Fl. Brit. Ind. 5: 681. 1888; King et Pantl. in Ann. Bot. Gard. Calcutta 8: 4. Pl. 3. 1898; Seidenf. in Dansk Bot. Ark. 25 (3): 19. fig. 5. 1968, et 33 (1): 11. fig. 9. 1978;中国高等植物图鉴5: 670. 图8169. 1976; H. Hara et al., Enum. Fl. Pl. Nepal 1: 50. 1978. -Iridorchis pachyrachis (Rchb. f. ex Hook. f.) Kuntze, Rev. Gen. Pl. 2: 669. 1891.——beronia umbraticola Rolfe in Kew Bull. 62. 1909 

grassland habitat

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Epiphytic on trees in dense forests; ca. 2100 m. S Xizang, SW Yunnan [Bhutan, N India, Myanmar, Nepal, Thailand, Vietnam].

 

We have only collected one specimen with fruit. Since it is connate with leaves below the middle part of the scape, it is definitely a species. The above description of flowers is from foreign literature.

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Stem ca. 1 cm. Leaves subbasal, several, inconspicuously distichous-equitant, laterally compressed, ensiform, sometimes slightly falcate, 7-10 × 0.6-1.5 cm, thick, veins obscure, base articulate, apex acute or acuminate.

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Peduncle foliaceous and fused with leaf in basal half, appearing to arise from inner side of leaf blade; rachis thickly fleshy, many flowered; racemes spikelike; floral bracts ovate-orbicular, ca. 0.8 mm, margin irregularly incised. Flowers pale brown, very small; pedicel and ovary very short, conspicuously shorter than floral bracts. Sepals ovate or elliptic, ca. 0.8 × 0.5 mm, apex obtuse. Petals narrowly oblong, ca. 0.7 × 0.2 mm, apex obtuse; lip ovate, slightly longer than sepals, margin entire, with obtuse basal auricles, apex obtuse or acute. Column short, stout. 


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Capsule subovoid-ellipsoid, ca. 2 × 1.3 mm, with a very short pedicel. Fl. Nov-Mar, fr. May. 



 



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