凹唇羊耳蒜 ao chun yang er suan

Cestichis kawakamii (Hayata) Maekawa; C. nakaharae (Hayata) Kudô; C. nokoensis (Fukuyama) Maekawa; C. taiwaniana (Hayata) Nakai; Liparis kawakamii Hayata; L. plicata Franchet & Savatier var. kawakamii (Hayata) S. S. Ying; L. nokoensis Fukuyama; L. taiwaniana Hayata.

Herbs, epiphytic. Leaves 2; petiole ca. 10 cm, articulate; blade oblanceolate, 18-35 (including petiole) × 1.7-2 cm, apex acuminate. Peduncle ca. 18 cm; rachis 8-15 cm, laxly flowered; floral bracts lanceolate, 7-10 mm. Flowers 1-2 cm in diam. Sepals spreading, reflexed-recurved, oblong-linear to linear, 9-10 × 1-1.8 mm, apex obtuse. Petals reflexed, linear, 9-12 × ca. 0.5 mm, margin convolute; lip cuneate-obovate to lyrate, ca. 8 mm, 5.5-7 mm wide above, ca. 2.5 mm wide at base, with a dorsally grooved basal callus, apical margin sometimes unequally denticulate. Column 5-6 mm. Fl. Jan.

● Taiwan.