Aphyllorchis rotundatipetala (Orchidaceae), a New Species from Taiwan

Aphyllorchis rotundatipetala C.S. Leou, S.K. Yu & C.T. Lee, a new species of Orchidaceae discovered in Taiwan, is described and illustrated. It is related to A. montana and A. simplex. The distinguishing characters of A. rotundatipetala are peloric and yellow flowers, obtuse apex of petals and lip, pinnate veins at the lip's top, and entire apex of the rostellum.