FLORA OF VIETNAM Orchidaceae Thelasis pygmaea (Griff.) Blume
Northern Vietnam, Ninh Binh Prov., Nho Quan Distr., Cuc Phuong Municipality, Cuc Phuong National Park, arouund point 20°14′52′'N, 105°40′35′'. Remnants of prinary evergreen seasonal broad-leaved lowland dry forest on limestone hills at elev. 300-350 m a.s.l. Epiphyte on top of hill. Common.