Description:  Found in Assam, Bangladesh, eastern Himalayas, Nepal, lower India, Sri Lanka, Myanmar, Malaysia, Thailand, Cambodia, Laos, Vietnam, China, Borneo, Java, the Philippines, Sulawesi, Sumatra, New Guinea and Taiwan as a variable, small to medium sized, hot to cold growing epiphyte, terrestrial or lithophyte occuring in broadleaf, evergreen, lowland forests on highly eroded, stratified limestone cliffs and bluffs at altitudes of  300 to 2500 meters, that has short and ovoid to long and cylindric pseudobulbs carrying 2, obovate-oblong or oblanceolate, obtuse, acute or acuminate leaves