6. Sunipia soidaoensis (Seidenfaden) P. F. Hunt, Kew Bull. 26: 184. 1971.
苏瓣大苞兰 su ban da bao lan
Ione soidaoensis Seidenfaden, Bot. Tidsskr. 64: 220. 1969.
Rhizome creeping, ca. 2 mm in diam. Pseudobulbs ca. 1 cm apart on rhizome, ovoid, 1.3-1.5 cm, 7-10 mm in diam., with 1 leaf at apex. Petiole ca. 7 mm; leaf blade erect, oblong, 5.5-7.5 × 0.9-1.2 cm, thickly leathery, base contracted into petiole, apex obtuse and retuse. Scape erect, 11-22 cm; raceme slightly nodding, 3- or 4-flowered; peduncle 6-17 cm, 1.5-2 mm in diam., sparsely with 3 sheaths ca. 1.5 cm; floral bracts ovate, 8-12 mm, membranous, apex acuminate. Pedicel and ovary ca. 12 mm. Flowers slightly thickly textured. Dorsal sepal ovate-lanceolate, ca. 7 × 4 mm, 6-veined, apex subacute; lateral sepals lanceolate, ca. 11 × 3 mm, their lower edges connate to each other in basal half, apex acute. Petals ovate-triangular, ca. 4 × 2.5 mm, 3-veined, abaxial base with 1 fleshy triangular appendage, margins fimbriate, apex acuminate; lip ovate-triangular, ca. 6 × 4.5 mm, narrowed and thickened in apical half, apex obtuse. Column ca. 2.5 mm, stout, base with a foot ca. 1 mm; each pair of pollinia with a stipe and a viscidium. Fl. Sep-Oct.
Tree trunks in forests; 1900-2000 m. SW Yunnan [SE Thailand].