FLORA OF VIETNAM

Fam. Orchidaceae

Biermannia calcarata Aver.

N.Vietnam, Cao Bang Prov., Trung Khanh Distr., Ngoc Khe Municipality, Pac Nga village, around point 22º54'59''N, 106º31'44''E, at elevation 600-650 m a.s.l. Closed secondary broad-leaved evergreen wet forest on very steep rocky slopes of rocky ridges and mesae composed with light gray solid marble-like highly eroded crystalline limestone. Canopy epiphyte on shrubs 3-4 m tall in very wet shady mossy place. Flowers light yellowish. Rare.

No HAL 5767 15 June 2004 (Photo)

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