cryptogamian

from The Collaborative International Dictionary of English v.0.48

Cryptogamian \Cryp`to*ga"mi*an\ (kr?p`t?-g?"m?-an), Cryptogamic
\Cryp`to*gam"ic\ (kr?p`t?-g?m"?k), Cryptogamous
\Cryp*to"gam*ous\a.
   Of or pertaining to the series Cryptogamia, or to plants of
   that series.
   [1913 Webster]