are Pleurothallis and Odontioda both types are orchids?
Pleurothallis Pleurothallis, abbreviated Pths in horticultural trade, is a genus of orchids commonly named bonnet orchids. The genus name is derived from the Greek word 'pleurothallos', meaning 'riblike branches'. This refers to the rib-like stems of many species.
Cleistes Cleistes is a genus of orchids (family Orchidaceae). It contains approximately 40-50 species, most of them native to South America, with a few species extending north into Costa Rica and Trinidad.