Fam. Orchidaceae

Cleisostoma subulifolium Aver. et Averyanova, sp.nov.

N.Vietnam, Cao Bang Prov., Trung Khanh Distr., Ngoc Khe Municipality, Pac Nga village, around point 22º54'59''N, 106º31'44''E, at elevation 700-800 m a.s.l. Closed secondary and remnants of primary broad-leaved evergreen forest on very steep rocky slopes of rocky ridges and mesae composed with light gray solid marble-like highly eroded crystalline limestone. Epiphyte. Flower buds white-pinkish. Locally common.

No HAL 5713 13 June 2004

Collectors: L.Averyanov, P.K.Loc, P.V.The, N.T.Vinh.