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FOC | Family List | FOC Vol. 25 | Orchidaceae | Dienia

2. Dienia ophrydis (J. Koenig) Ormerod & Seidenfaden, Contr. Orchid Fl. Thailand. 13: 18. 1997.

无耳沼兰 wu er zhao lan

Epidendrum ophrydis J. Koenig in Retzius, Observ. Bot. 6: 46. 1791; Anaphora liparioides Gagnepain; Crepidium ophrydis (J. Koenig) M. A. Clements & D. L. Jones; Dienia congesta Lindley; D. latifolia (Smith) M. A. Clements & D. L. Jones; D. montana (Blume) M. A. Clements & D. L. Jones; Gastroglottis latifolia (Smith) Szlachetko; G. montana Blume; Glossochilopsis carnosula (Rolfe ex Downie) Szlachetko & Margońska; Liparis krempfii Gagnepain; L. turfosa Gagnepain; Malaxis carnosula (Rolfe ex Downie) Seidenfaden & Smitinand; M. congesta (Lindley) Deb; M. kizanensis (Masamune) S. Y. Hu; M. latifolia Smith; M. latifolia var. nana S. S. Ying; M. ophrydis (J. Koenig) Ormerod; M. parvissima S. Y. Hu & Barretto; M. shuicae S. S. Ying; Microstylis carnosula Rolfe ex Downie; M. congesta (Lindley) H. G. Reichenbach; M. kizanensis Masamune; M. latifolia (Smith) J. J. Smith.

Plants terrestrial, sometimes epiphytic. Pseudobulbs cylindric, 1-2 cm, fleshy, with several nodes, ± enclosed in membranous sheaths. Leaves 4 or 5, obliquely ovate-elliptic, ovate, or narrowly elliptic-lanceolate, 7-16(-25) × (2.5-)4-9 cm, base contracted into a sheathlike, amplexicaul petiole 3-5 cm, apex acuminate. Inflorescence erect; peduncle erect, 15-60 cm, very narrowly winged; rachis 5-15(-25) cm, many flowered; floral bracts ± reflexed, narrowly lanceolate, 2.5-5(-12) mm. Flowers purplish red to greenish yellow, relatively small; pedicel and ovary 2-3 mm. Dorsal sepal narrowly oblong, 3-3.5 × 1.1-1.2 mm, apex obtuse; lateral sepals obliquely ovate, 2-2.5 × 1.2-1.4 mm. Petals linear, 2.5-3.2 × ca. 0.7 mm, apex obtuse; lip ± broadly ovate, ca. 2 × 2.5 mm, concave, subcordate to truncate at base, apex 3-lobed; mid-lobe narrowly ovate, 0.7-1.1 mm, much longer than lateral lobes, apex obtuse. Column ca. 1.2 mm, stout. Capsule erect, obovoid-ellipsoid, 6-7 × 3-4 mm; fruiting pedicel 2-3 mm. Fl. May-Aug, fr. Aug-Dec. 2n = 26, 42.

Forests, thickets or shaded rocks by streamsides; below 2000 m. S Fujian, Guangdong, Guangxi, Hainan, Taiwan, S and SW Yunnan [Bhutan, Cambodia, India, Indonesia, Japan (Ryukyu Islands), Laos, Malaysia, Myanmar, Nepal, New Guinea, Philippines, Sri Lanka, Thailand, Vietnam; Australia].


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