After Parker, 1982

<==o Discomycetes ()
   |--o Ostropales ()
   |  `-- Stictidaceae ()
   |--o Phacidiales ()
   |  |-- Rhytismataceae ()
   |  |-- Cryptomycetaceae ()
   |  `-- Phacidiaceae ()
   |--o Helotiales ()
   |  |-- Ascocorticiaceae ()
   |  |-- Hemiphacidiaceae ()
   |  |-- Geoglossaceae ()
   |  |-- Leotiaceae ()
   |  |-- Hyaloscyphaceae ()
   |  |-- Dermateaceae ()
   |  |-- Orbiliaceae ()
   |  `-- Sclerotiniaceae ()
   |--o Cyttariales ()
   |  `-- Cyttariaceae ()
   |--o Medeolariales ()
   |  `-- Medeolariaceae ()
   |--o Pezizales ()
   |  |-- Sarcosomataceae ()
   |  |-- Sarcoscyphaceae ()
   |  |-- Ascobolaceae ()
   |  |-- Pezizaceae ()
   |  |-- Aleuriaceae ()
   |  |-- Otidiaceae ()
   |  |-- Pyronemataceae ()
   |  |-- Morchellaceae ()
   |  |-- Helvellaceae ()
   |  `-- Thelebolaceae ()
   `--o Tuberales ()
      |-- Terfeziaceae ()
      |-- Geneaceae ()
      `-- Tuberaceae ()

Reference(s):