The Collaborative International Dictionary of English v.0.48:
Carpophyte \Car"po*phyte\ (k[aum]r"p[-o]*l[imac]t), n. [Gr.
karpo`s fruit + fyto`n plant.] (Bot.)
A flowerless plant which forms a true fruit as the result of
fertilization, as the red seaweeds, the Ascomycetes, etc.
Note: The division of alg[ae] and fungi into four classes
called Carpophytes, Oophytes, Protophytes, and
Zygophytes (or Carpospore[ae], Oospore[ae], Protophyta,
and Zygospore[ae]) was proposed by Sachs about 1875.