are Pleurothallis and Odontioda both types are orchids?
Odontioda Odontioda is a nothogenus of hybrid orchids, for plants produced by crosses between the genera "Odontoglossum" and "Cochlioda". Typically they prefer warmer temperatures and indirect sunlight.
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.