FLORA OF VIETNAM Orchidaceae Cleisostoma crochetii (Guillaum.) Garay
N. Vietnam, Thai Nguyen prov., Vo Nhai distr., Than Sa municipality, vicinities of Kim Son village (N 21°48′ E 105°54′), 23.3 km to 18° of Thai Nguyen city. Primary dry broadleaved evergreen forest on very steep rocky slopes of remnant karst limestone ridge at elev. about 300 m a.s.l. Epiphyte on mossy trees in shady places. Not rare.
Flowered in culture at 01 August 2001. Flowers odorless: tepals, column and anther cup yellow, side lobes and median lobe of the lip purple-violet.