Wenyingia, a new genus in Pezizales (Otideaceae)

A new genus Wenyingia (Otideaceae, Pezizales), based on Wenyingia sichuanen sis, a new species, is reported from western Sichuan, China. An unusual mem brane covering the hymenium, the structure and origin of which are discusse d in this paper, distinguishes this genus from others in the family. The st ructure of the excipulum, size, shape and ornamentation of spores and pigme ntation of the apothecia place this genus close to Tarzetta.