长裂鸢尾兰（新拟）
拟虾须莪白兰（海南植物志）
Oberonia anthropophora Lindl. (ex Wall. Cat. no. 1951. 1829, nom. nud.) , Gen. Sp. Orch. Pl. 16. 1830; Hook. f., Fl. Brit. Ind. 5: 684. 1888; Grant, Orch. Burma 28. 1895; Seidenf. in Dansk Bot. Ark. 25 (3): 93. fig. 62. 1968 (quoad Wall. 1951, Cumb.1024, 1025) , et 33 (1): 33. 1978, p. p.; 海南植物志4: 210. 1977. ——Malaxis anthropophora (Lindl.) Rchb. f. in Walp. Ann. 6: 215. 1861. ——Iridorchis anthropophora (Lindl.) Kuntze, Rev. Gen. Pl. 2: 669. 1891.
Epiphytic on trees along valleys; ca. 400 m. SE Hainan [Malaysia (Peninsular), Myanmar, Thailand, Vietnam].The type specimen was collected from Myanmar.
G. Seidenfaden ( 1968 ) first reported this species in Hainan Island, China. A copy of the specimen ( Hou Kuanzhao 72573 ) on which he is based is also stored in our herbarium. The Hainan specimen is very similar to the figure drawn from the Thai specimen ( Cumb. 1204, 1205 ), but differs from the Malaysian specimen, which has very dense inflorescences. Whether Oberonia aurantiaca Ridl.should be included in this species remains to be further studied. |
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Stem 2.5-4.5 cm. |
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Leaves 5-9, distichous, laterally compressed, linear, often slightly falcate, 1.5-5 × 0.3-0.5 cm, thick, veins inconspicuous, base not articulate, margin ± crisped when dried, apex acuminate. |
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Peduncle subterete, 8-10 cm, wingless, sometimes with large greenish foliaceous bracts below; rachis 7-9 cm, 3-4 mm in diam., more than 100-flowered; floral bracts lanceolate, 1-1.5 mm, margin often ± erose-incised, apex long acuminate or aristate. Flowers pale red, 1-1.5 mm in diam.; pedicel and ovary 1-1.5 mm. Dorsal sepal ovate, 0.7-0.8 × ca. 0.4 mm, apex obtuse; lateral sepals broadly ovate, 0.7-0.8 × 0.4-0.5 mm, apex obtuse. Petals suboblong, 0.7-0.8 × 0.2-0.3 mm; lip ca. 2 × 0.4 mm, 3-lobed; mid-lobe deeply lobed again; lateral lobes ovate-oblong to ovate-lanceolate, ca. 0.3 mm; mid-lobe ca. 1 mm, with 2 lanceolate lobules. Column ca. 0.2 mm, stout. Fl. May. |
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