半柱毛兰 ban zhu mao lan

Eria goldschmidtiana Schlechter; E. septemlamella Hayata.

Pseudobulbs ± clustered, ovoid-oblong or ellipsoid, 2-5 × 1-2.5 cm, apex 2- or 3-leaved. Leaf blade elliptic-lanceolate or obovate-lanceolate, (15-)20-45 × 1.5-6 cm, both surfaces with grayish white papillae when dry, apex acuminate or long acuminate; petiole 2-3 cm. Inflorescence subterminal, 6-22 cm, more than 10-flowered (sometimes to 60-flowered); floral bracts deltoid, ca. 1 mm. Flowers white or slightly tinged with yellow, with white linear projections on sepals and petals; pedicel and ovary 7-8 mm. Dorsal sepal ovate-triangular, ca. 10 × 2 mm, acuminate; lateral sepals falcate-triangular, ca. 10 × 5 mm, obtuse-rounded and apiculate; mentum obtuse. Petals linear-lanceolate, slightly falcate, ca. 10 × 1.2 mm; lip ovate in outline, ca. 10 × 6 mm, 3-lobed; lateral lobes suberect, suborbicular, rounded; mid-lobe ovate-triangular, 3-3.5 × ca. 2 mm, obtuse, with ca. 7 crested or fimbriate lamellae; disk with 3 undulate lamellae extending to base of mid-lobe. Column subcylindric, ca. 3 mm, foot ca. 5 mm. Capsule obovoid-cylindric, ca. 1.5 cm × 5-6 mm; fruiting pedicel ca. 3 mm. Fl. Aug-Sep, fr. Oct-Dec. 2n = 36.

Epiphytic on trees or lithophytic on rocks in forests; 500-1500 m. S Fujian, S and W Guangdong, S Guangxi, SW Guizhou, Hainan, Taiwan, SE Yunnan [Japan (Ryukyu Islands), Vietnam].