流苏金石斛 liu su jin shi hu

Desmotrichum fimbriatum Blume, Bijdr. 329. 1825; Dendrobium fimbriatum (Blume) Lindley (1830), not Hooker (1823); D. plicatile Lindley; Ephemerantha fimbriata (Blume) P. F. Hunt & Summerhayes.

Rhizome creeping, 5-7 mm in diam., internodes 7-8 mm. Stems ascending or pendulous, many branched. Pseudobulbs golden yellow, compressed fusiform, 3.5-6.5 × 1-2.3 cm. Leaf blade oblong-lanceolate or narrowly elliptic, 10-20 × 3-5 cm, leathery, slightly obtuse; petiole very short. Inflorescence usually 1-3-flowered. Flowers thinly textured; sepals and petals milky yellow, tinged brownish or with purplish red spots, lip whitish, with purple-red spots on lateral lobes and with yellowish white central lamellae; pedicel and ovary ca. 5 mm. Dorsal sepal ovate-lanceolate, ca. 9 × 2.5 mm, acuminate; lateral sepals obliquely ovate-lanceolate, similar in size to dorsal sepal, base oblique and relatively wide, apex acuminate; mentum borne at an acute angle to ovary, narrowly conic, ca. 7 mm. Petals lanceolate, ca. 9 × 2 mm, subacute; lip ca. 1.5 cm, base narrowed and cuneate, 3-lobed; lateral lobes erect, subobovate, entire; mid-lobe flabellate, ca. 8 × 7-8 mm, margin undulate-crisped, apex subtruncate; disk with 2 or 3 lamellae extending from base to apex of mid-lobe; lamellae crisped in apical half. Column ca. 4 mm, stout, foot ca. 7 mm. Fl. Apr-Jun.

Epiphytic on tree trunks in forests, lithophytic on rocks in forests; 700-1700 m. SW Guangxi, Hainan, SE Yunnan [India (Andaman Islands, Nicobar Islands), Indonesia, Malaysia, Philippines, Thailand, Vietnam].