Chiloschista (Chsch) in the horticultural trade, is a genus of orchids, comprising 20 currently recognized species native to China, the Indian Subcontinent, Southeast Asia, New Guinea, Australia, Fiji and Micronesia.

Unlike the majority of orchids, they tend to be leafless or with only a few occasional leaves, being composed principally of aerial roots equipped with photosynthetic cells.

this genus is listed as a leafless epiphyte. In reality, however, some species produce leaves, although the leaves are caducous (shed at an early stage of development).

Because these plants have no leaves, the photosynthesis normally performed in the leaves is done in the roots. Therefore, the roots must be grown exposed to sunlight. Plants are usually mounted on small tree branches.
Care
Temperature:- Minimum temperature(15-18C)

Light moderate shade (60-70%)

Water-Humidity: High humidity; while in active growth, plenty of water – allow to dry between waterings.

source
https://en.wikipedia.org/wiki/Chiloschista

http://www.aos.org/orchids/orchids-a-to-z/letter-c/chiloschista.aspx

klairvoyant orchids