- Sphaeriales, order Sphaeriales - large order of ascomycetous fungi usually having a dark hard perithecia with definite ostioles; in more recent classifications often divided among several orders
--1 is a kind of fungus order
--1 is a member of Pyrenomycetes, class Pyrenomycetes
--1 has members:Sphaeriaceae, family Sphaeriaceae; Ceratostomataceae, family Ceratostomataceae; Hypocreaceae, family Hypocreaceae; Xylariaceae, family Xylariaceae