Schoenorchis mishmensis sp. nov. (Orchidaceae) from Mishmi Hills, Lower Dibang Valley District, Arunachal Pradesh, India

A new species of Schoenorchis, belonging to the family Orchidaceae is described from tropical mixed evergreen forests of Mishmi Hills, (Arunachal Pradesh, India). It is allied to Schoenorchis micrantha and S. brevirachis but differs in the size and shape of plant, the size of the leaf blade, inflorescence and flower. A detailed description with taxonomic notes, colour photos and information on the habitat, conservation status are provided.