拟色厚唇兰 ni se hou chun lan

Rhizome creeping, terete, rooting, forming chains up to 8 cm, 1-1.5 mm in diam. Pseudobulbs prostrate, apex raised, covered by brown drying sheath, obliquely ellipsoid-fusiform, 1-leaved, up to 4 mm apart, 6-13 × 5-6 mm. Leaf blade erect, ovate-elliptic to elliptic, 1.1-2.4 × 0.7-1 cm stiffly leathery; petiole to 2 mm. Inflorescence subterminal, 1-flowered; peduncle ca. 4 mm. Flowers light red, or with greenish sepals and petals and lip with a red-brown mid-lobe and front of side lobes, lower half of lip greenish; pedicel and ovary terete, ca. 10 mm. Dorsal sepal ovate, ca. 6.5 × 4 mm, 5-veined, acute; lateral sepals broadly ovate-triangular, ca. 10 × 8 mm, 6-veined, acute; mentum 8-10 mm. Petals oblong-lanceolate, ca. 8 × 3 mm, 6-veined, acute; lip 3-lobed, ca. 13.5 × 7.5-8 mm; hypochile obovate, with 3 low longitudinal keels in center, ca. 10 mm, ca. 2 mm wide at base, apex 7.5-8 mm wide; mid-lobe transversely elliptic-reniform, ca. 4 × 7 mm, subacute. Column ca. 1 mm, ca. 3 mm wide below. Fl. Jun.

Epiphyte. ?Guangdong, S Guangxi (Shiwan Dashan) [Thailand].