短序石豆兰 duan xu shi dou lan

Pseudobulbs ca. 2 cm apart from each other, subcylindric, 3-3.5 cm, 5-7 mm in diam., with a terminal leaf. Leaf subsessile; blade oblong, ca. 17 × 2.8 cm, apex acute. Scape from base of pseudobulb, arching, ca. 2 cm; raceme densely 6- or 7-flowered; peduncle with 3 scalelike sheaths ca. 6 mm; floral bracts lanceolate, ca. 6 mm, apex acuminate. Pedicel and ovary 4-5 mm. Flowers purplish red. Dorsal sepal ovate-elliptic, concave, ca. 5 × 3 mm, abaxially densely papillate, apex acute; lateral sepals ovate, nearly as large as dorsal sepal, abaxially densely papillate, their lower edges connate to each other, with free apex. Petals ovate, ca. 3 × 2 mm, margins irregularly denticulate, apex rounded; lip attached to end of column foot by a mobile joint, recurved, ligulate, ca. 3 mm, fleshy, glabrous, base with 1 central groove, with 2 cornute auricles on both basal sides, apex obtuse-rounded. Column ca. 2 mm; stelidia subulate, ca. 1.5 mm, foot with free part ca. 1.5 mm; anther cap tower-shaped, densely papillate. Fl. Jan.

● Tree trunks at forest margins along valleys; 1300-1400 m. S Yunnan.