olfersia

from WordNet (r) 3.0 (2006)

Olfersia
    n 1: genus of fern having only one species [syn: {Olfersia},
         {genus Olfersia}]

from The Collaborative International Dictionary of English v.0.48

Olfersia \Olfersia\ prop. n.
   genus consisting of one species; in some classification
   systems it is included in the genus {Polyboatrya}.

   Syn: genus {Olfersia}.
        [WordNet 1.5]