The Collaborative International Dictionary of English v.0.48:

Parmelia \Parmelia\ prop. n.
   The type genus of the Parmeliaceae; a large genus of
   chiefly alpine foliaceous lichens.

   Syn: genus Parmelia.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Parmelia
    n 1: type genus of the Parmeliaceae; a large genus of chiefly
         alpine foliaceous lichens [syn: Parmelia, genus
         Parmelia]