Orchidaceae

Vietnam, western part of Nghe An province, Pu Mat national park, 18°57’24.6’’N 104°41’04.3’’E. Humid lowland primary broad-leaved evergreen shady forest with bamboo along rocky stream at elevation 420 m a.s.l. Small pendulous epiphyte at nodes of rotten bamboo stems in wet place above the water. Flowers simultaneously opening, sepals and petals dull yellow to dull orange, lip white, lobes purple, spur, column and anther white. 20 May 2016, N.L. Orlov et al., s.n.