Diplandrorchis sinica S. C. Chen Acta Phytotax. Sin. 17(1): 2. 1979.

双蕊兰 shuang rui lan

Plants 17-24 cm tall. Rhizome slightly curved, ca. 2.5 mm in diam. Inflorescence slender, ca. 2 mm in diam., with 5-7 membranous sheaths; lower sheaths tubular, 2-3 cm; upper sheaths ovate-lanceolate, 1-1.5 cm; rachis 6-8 cm, densely 13-17-flowered; floral bracts lanceolate, 7-8 mm, apex acuminate. Flowers pale green or greenish white, not opening widely; pedicel 4-6 mm, papillose-pubescent; ovary ellipsoid, ca. 4 × 2.5 mm, papillose-pubescent. Sepals oblong-lanceolate, ca. 3.5 × 1.5 mm, outer surfaces papillose-pubescent; lateral sepals slightly oblique. Petals and lip similar, suboblong, slightly shorter and narrower than sepals. Column ca. 2.5 mm including anthers; anthers broadly ovoid-oblong, ca. 0.6 mm. Fl. Aug.

● Humus-rich soils in Tilia forests, shaded places; 700-800 m. E Liaoning.