Source : Webster's Revised Unabridged Dictionary (1913)

Thallophyte \Thal"lo*phyte\, n. [Gr. ? young shoot + -phyte.]
   (Bot.)
   A plant belonging to the Thallophyta. -- {Thal`lo*phyt"ic},
   a.

Thallophyte \Thal"lo*phyte\, n. [Gr. ? young shoot + ? plant.]
   (Bot.)
   Same as {Thallogen}.

Source : WordNet®

thallophyte
     n : any of a group of cryptogamic organisms consisting
         principally of a thallus and thus showing no
         differentiation into stem and root and leaf