5. Gastrochilus intermedius (Griffith ex Lindley) Kuntze, Revis. Gen. Pl. 2: 661. 1891.
细茎盆距兰 xi jing pen ju lan
Saccolabium intermedium Griffith ex Lindley, J. Proc. Linn. Soc., Bot. 3: 33. 1858.
Stems slightly flattened, ca. 15 cm, 3-4 mm in diam., slender, branched, internodes 5-8 mm. Leaves distichous; blade narrowly lanceolate, 5-6 × 0.7-1 cm, apex acuminate and 2- or 3-lobed, lobes setiform. Inflorescence subumbellate, short, often 2- or 3-flowered; peduncle ca. 1 cm; floral bracts ovate, ca. 1.5 mm, apex acute; pedicel and ovary ca. 1 cm. Flowers pale yellow, small. Sepals similar, elliptic, ca. 5.5 × 2.5 mm, 3-veined, apex obtuse. Petals oblanceolate, ca. 5 × 2 mm, apex rounded; lip with an epichile and a saccate hypochile; epichile suborbicular-triangular, ca. 2 × 5 mm, adaxially glabrous, with a central cushion extending to front wall of hypochile, margin erose or irregularly toothed, apex rounded; hypochile subglobose or helmetlike, ca. 4 mm tall, ca. 4 mm in diam., apex rounded and with 2 or 3 ridges on distal surface outside, with erect lateral margins. Anther cap slightly narrowed toward apex. Fl. Oct.
On tree trunks in forests; ca. 1500 m. SE Sichuan [NE India, Thailand, Vietnam].