Bulbophyllum delitescens Hance
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| Bulbophyllum delitescens Hance; All photos © L. Averyanov |
1876,. Journ. Bot. (London) 14: 44: Seidenf., 1992. Opera Bot. 114: 286; P. H. Ho, 1993, 111. FI. Vietnam 3, 2: 1104, f. 10245; Aver., 1994, Ident. Guide Vietnam. Orch.: 274; Thin, 1997, Sida 17, 4: 756; Aver. & Averyanova, 2003, Updated Checkl. Orch. Vietnam: 14; Soejarto et al., 2004, Seed plants CPNP: 445.
Synonyms.
Cirrhopetalum mirificum Gagnep., 1931, Bull. Soc. Bot. France 78: 5; Gagnep., 1932, in Lecomte, Fl. Gen. Indo-Chine 6: 2S9.
Studied collections.
2 May 1985, Averyanov et al., LX-VN 1814/56: 20 Dec. 1999,N.M.Cuong, NMC 776: 8Jan. 2003, Averyanov et al., HAL 2856.
Description.
Epiphyte with long creeping woody rhizome 3—4 mm thick and erect l-leaved narrowly ovate pseudobulbs 1—1.5 bv 0.3—0.5 cm. Leaves coriaceous, petiolate; petiole 1—2 cm long; leaf blade elliptic to elliptic oblong, 7—15 by 3—5 cm. Inflorescence from the base of pseudobulbs, 10- -14 cm long, with 3—6 close flowers. Flowers violet to lilac-purple. Dorsal sepal broadly ovate, about 1 cm long, entire along margin, with long thread-like seta at the apex; lateral sepals 3.5—5 cm long, narrowly lanceolate, connate along upper margin, free, acute at the apex. Petals with entire margins, oblong rectangular, 5—6 mm long, truncate and mucronate at the apex. Lip movable, simple, ovate, strongly decurved. Column with long narrow column foot, with 2 broad semi-circular wings in front, at apex with 2 large erect stelidia, much broadening and forked at apex.
Flowering time.
April-May.
Geographic range.
NE. India, SE. China, Hainan, Hong Kong, Vietnam.
Notes.
It is a rather rare species that is easily distinguished by its unusually colored violet flowers and large forked stelidia. Ornamental.
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