套叶鸢尾兰 tao ye yuan wei lan

Hippeophyllum sinicum S. C. Chen & K. Y. Lang, Acta Phytotax. Sin. 36: 70. 1998.

Rhizome creeping, to 7 cm or longer, 1-1.5 mm in diam., slender, loosely covered by scalelike sheaths at nodes, often branching. Stem short, arising at intervals of 2-5 mm along rhizome, 3- or 4-leaved. Leaves distichous-equitant, laterally compressed, ensiform or narrowly oblong-lanceolate, (3-)6-11 × 1.5-2 mm, fleshy, base articulate. Peduncle slightly arching, ca. 3 cm; rachis ca. 2.5 cm, many flowered; floral bracts ovate, ca. 1 mm, margin slightly erose. Flowers solitary or 1 or 2 together, pale yellowish brown, ca. 2 mm in diam.; pedicel and ovary ca. 0.8 mm. Sepals ovate-elliptic or elliptic, ca. 0.8 × 0.4 mm; lateral sepals usually narrower than dorsal sepal. Petals narrowly oblong, slightly arching, ca. 0.7 × 0.15 mm; lip ovate-oblong in outline, margin irregularly serrate, deeply bilobed; apical lobes nearly parallel to each other, narrowly lanceolate, 0.3-0.4 mm. Column ca. 0.2 mm. Fl. Jun.

● Cliffs in open forests; ca. 1600 m. S Gansu.