中越苹兰 zhong yue ping lan

Basionym: Dendrobium donnaiense Gagnepain, Bull. Mus. Natl. Hist. Nat., sér. 2, 21: 740. 1950; Eria donnaiensis (Gagnepain) Seidenfaden.

Rhizome stout, ca. 5 mm in diam. Pseudobulbs borne 4-9 mm apart on rhizome, narrowly ovoid or nearly cylindric, 0.8-2.5 cm × 3-6 mm, wrinkled when dried, with 3 or 4 leaves at or near apex. Leaf blade linear or narrowly elliptic-linear, (2-)3-6 × 0.6-1.4 cm, papery, base contracted into a short petiole, apex obtuse or sometimes obliquely apiculate. Inflorescence subterminal, 2-3 cm, 3-6-flowered; rachis nearly glabrous; floral bracts oblong-lanceolate to elliptic, 4-6 mm. Flowers white or reddish; pedicel and ovary 1-1.4 cm, nearly glabrous. Dorsal sepal narrowly elliptic, 7-9 × 3-3.5 mm; lateral sepals obliquely triangular-lanceolate, 6.5-7.5 × 2.5-3 mm. Petals narrowly elliptic, ca. 5 × 2 mm; lip subovate in outline, 5.5-6 mm, base contracted into a short claw, distally 3-lobed; lateral lobes subovate; mid-lobe broadly ovate, not thickened or fleshy, margin undulate; disk with 3 longitudinal lamellae running from near base to mid-lobe. Column 1-2 mm; foot 3-4 mm. Fl. Jun-Aug.

Epiphytic on trees in open forests or thickets; 1000-1500 m. S and SE Yunnan [Laos, Vietnam].