Asco*my*ce"tous

from The Collaborative International Dictionary of English v.0.48

ascomycetous \ascomycetous\ adj.
   1. of or pertaining to ascomycetes.
      [WordNet 1.5]

from The Collaborative International Dictionary of English v.0.48

Ascomycetes \As`co*my*ce"tes\, n. pl. [NL.; ascus + Gr. ?, ?,
   fungus.] (Bot.)
   A large class of higher fungi distinguished by septate
   hyph[ae], and by having their spores formed in asci, or spore
   sacs; the sac fungi. It comprises many orders, among which
   are the yeasts, molds, mildews, truffles, morels, etc. The
   class is coextensive with the phylum Ascomycota. --
   {As`co*my*ce"tous}, a.
   [Webster 1913 Suppl. + WordNet 1.5]