The Collaborative International Dictionary of English v.0.48:

Ascomycotina \Ascomycotina\ n.
   same as Ascomycota.

   Syn: Ascomycota, subdivision Ascomycota, subdivision
        Ascomycotina
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Ascomycotina
    n 1: a large subdivision of Eumycota including Hemiascomycetes
         and Plectomycetes and Pyrenomycetes and Discomycetes; sac
         fungi; in some classification systems considered a division
         of the kingdom Fungi [syn: Ascomycota, subdivision
         Ascomycota, Ascomycotina, subdivision Ascomycotina]