五脊苹兰 wu ji ping lan

Basionym: Eria quinquelamellosa Tang & F. T. Wang, Contr. Inst. Bot. Natl. Acad. Peiping 2: 135. 1934.

Pseudobulbs contiguous, usually laterally compressed, oblong-ellipsoid, ca. 3.5 × 1.5 cm, slightly wrinkled, apex 3-leaved. Leaves subsessile, narrowly oblong, 13-17 × ca. 1.4 cm, both surfaces ± scurfy-mealy, apex acute. Inflorescence ca. 12 cm, villous, laxly more than 20-flowered; floral bracts lanceolate, longer than pedicel and ovary, membranous, acuminate. Flowers glabrous; pedicel and ovary 6-8 mm, slender, pubescent. Dorsal sepal ligulate, ca. 7 × 2 mm, acuminate; lateral sepals falcate-ovate, ca. 6 × 3 mm, acute. Petals falcate, narrowly ligulate, ca. 6 × 1.5 mm, obtuse; lip subobovate, ca. 6 × 4 mm, with a sulcate claw at base, 3-lobed near middle; lateral lobes subovate-falcate, ca. 1.3 mm, acute; mid-lobe oblate, ca. 2 × 2.5 mm, obtuse; disk with 5 inconspicuous lamellae connate at base. Column ca. 3 mm. Fl. unknown.

● Lithophytic on rocks. Hainan.