日月潭羊耳蒜 ri yue tan yang er suan

Cestichis hensoaensis (Kudô) F. Maekawa; Liparis nigra Seidenfaden var. hensoaensis (Kudô) S. S. Ying.

Herbs, terrestrial. Pseudobulbs ovoid, ca. 1 cm × 8 mm. Leaves 3 or 4, linear-lanceolate, 10-30 × 1-1.5 cm, membranous or herbaceous, base not articulate, apex acute. Inflorescence 40-60 cm; rachis 10-20 cm, 10-flowered; floral bracts triangular, 4-6 mm. Flowers green; pedicel and ovary ca. 1 cm. Dorsal sepal oblong-lanceolate, ca. 9 × 2 mm, 6-veined; lateral sepals oblong-ovate, ca. 8 × 3 mm, 5-veined. Petals linear-oblanceolate, ca. 9 × 1.3 mm, 3-5-veined; lip ovate or oblong-elliptic, adaxially with papillate projections, base cuneate, apex emarginate and mucronate. Column ca. 5 mm. Fl. Sep.

● C Taiwan.