APPLANODICTYOSPOROUS PLEOSPORALES - CLATHROSPORA, COMOCLATHRIS, GRAPHYLLIUM, MACROSPORA, AND PLATYSPOROIDES

Six genera of the order Pleosporales are revised taxonomically. Although five genera have unusual applanate ascospores, they are members of three different families. Clathrospora (10 species, 2 new), Comoclathris (21 species, 7 new), and Macrospora (3 species) are placed in a new family Diademaceae in which the ascoma opening is a characteristic flat circular lid. Diademosa, a new genus with one species with terete ascospores is placed in Diademaceae. Graphyllium (3 species) is placed in die family Hysteriaceae characterized by hysterothecia with a slit-like opening. Platysporoides n. gen. (11 species, 1 new) is maintained in the Pleospraceae because of the terete pored beak of the ascomata.