What is "cleisocentron"

Cleisocentron is a genus of flowering plants from the orchid family, Orchidaceae. It has a disjunct distribution, known from the Himalayas, Vietnam and Borneo. Six species are currently recognized:

1. Cleisocentron abasii Cavestro - Sabah
2. Cleisocentron gokusingii J.J.Wood & A.L.Lamb - Sabah
3. Cleisocentron kinabaluense Metusala & J.J.Wood - Sabah
4. Cleisocentron klossii (Ridl.) Garay - Vietnam
5. Cleisocentron merrillianum (Ames) Christenson - Sabah
6. Cleisocentron pallens (Cathcart ex Lindl.) N.Pearce & P.J.Cribb - eastern Himalayas (Sikkim, Bhutan, Assam, India)