plural noun

Definition of Hemiascomycetes 

in some classifications

: a subclass of Ascomycetes comprising simple ascomycetous fungi that lack an ascocarp and have asci arising directly from the fertile ascogonium and each containing an indefinite number of spores — see endomycetales , taphrinales — compare protoascomycetes

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History and Etymology for Hemiascomycetes

New Latin, from hemi- entry 1 + Ascomycetes

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