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.
Oeoniella Oeoniella is a genus of flowering plants from the orchid family, Orchidaceae. It contains two known species, both native to various islands in the Indian Ocean.