Ascomycete

any fungus of the phylum ascomycota (or cl-ss ascomycetes), including the molds and truffles, characterized by bearing the s-xual spores in a sac (as distinguished from basidiomycete).
historical examples

the term sporidia he limits to spores produced or enclosed in an ascus, as in the ascomycete.
student’s hand-book of mushrooms of america, edible and poisonous thomas taylor

noun
any fungus of the phylum ascomycota (formerly cl-ss ascomycetes) in which the spores (ascospores) are formed inside a club-shaped cell (ascus). the group includes yeast, penicillium, aspergillus, truffles, and certain mildews

ascomycete as·co·my·cete (ās’kō-mī’sēt’, -mī-sēt’)
n.
a member of the cl-ss ascomycetes.
ascomycete
(ās’kō-mī’sēt’)
any of various fungi belonging to the phylum ascomycota, characterized by the presence of s-xually produced spores formed within an ascus. like most fungi, ascomycetes also reproduce as-xually by the formation of nons-xual spores called conidia at the ends of filaments known as hyphae. yeasts, many molds that cause food spoilage, and the edible fungi known as morels and truffles, are ascomycetes. a number of serious plant diseases, including ergot, the powdery mildews that attack fruit, and dutch elm disease, are also caused by ascomycetes.