- Pyrenomycetes, class Pyrenomycetes - class of fungi in which the fruiting body is a perithecium; includes powdery mildews and ergot and neurospora
--1 is a kind of class
--1 is a member of
--1 has members:Ascomycota, subdivision Ascomycota, Ascomycotina, subdivision Ascomycotina Erysiphales, order Erysiphales; Sphaeriales, order Sphaeriales; Hypocreales, order Hypocreales