FLORA OF VIETNAM

Fam. Orchidaceae

Gastrodia tonkinensis Aver. et Averyanova, sp.nov. (type)

N.Vietnam, Ha Tinh Prov., Huong Son Distr., Son Hong Municipality, around point 18º34'06''N, 105º11'40''E. Heavily logged primary broad-leaved evergreen dry forest on steep mt slopes and along ridge composed with shale at elev. about 350-400 m a.s.l. Small ground achlorophyllous light yellowish-brown saprophyte. Flower

buds light yellow-brownish with brown stripes. Very rare.

No HAL 5263 9 May 2004 (Photo, alc., silica fix)

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