Abstract: Penkimia , P. nagalandensis, Sunipia cirrhata and Uncifera thailandica were reported as new records to China. Penkimia primarily differs from Ascocentrum by having lateral lobes overlapping the column , lip lacking any appendages, and the conical spur. Sunipia cirrhata is characterized by its inflorescence exceeding leaf, lip with a callus at base, each pair of pollinia with stipe and viscidium . Uncifera thailandica is primarily distinguished from its relatives by its apex of spur curved backwards towards ovary.

Key words: Orchidaceae