division - (botany) taxonomic unit of plants corresponding to a phylum

Helotiales, order Helotiales - order of fungi having asci in a disk- to goblet-shaped apothecium

order Tuberales, Tuberales - small order of fungi belonging to the subdivision Ascomycota having closed underground ascocarps

division Eumycota, Eumycota - true fungi; eukaryotic heterotrophic walled organisms; distinguished from Myxomycota (funguslike slime molds): comprises subdivisions Mastigomycotina; Zygomycotina; Ascomycotina; Basidiomycotina; Deuteromycotina (imperfect fungi)

sac fungus - any of various ascomycetous fungi in which the spores are formed in a sac or ascus

Ascomycetes, class Ascomycetes - large class of higher fungi coextensive with division Ascomycota: sac fungi

ascomycete, ascomycetous fungus - any fungus of the class Ascomycetes (or subdivision Ascomycota) in which the spores are formed inside an ascus

class Hemiascomycetes, Hemiascomycetes - class of fungi in which no ascocarps are formed: yeasts and some plant parasites

class Plectomycetes, Plectomycetes - class of fungi in which the fruiting body is a cleistothecium (it releases spores only on decay or disintegration)

class Pyrenomycetes, Pyrenomycetes - class of fungi in which the fruiting body is a perithecium; includes powdery mildews and ergot and neurospora