melanosperm

1 definition found

melanosperm - Collaborative International Dictionary of English v.0.48 :

  Melanosperm \Me*lan"o*sperm\, n. [Gr. me`las, me`lanos, black +
     spe`rma seed.] (Bot.)
     An alga of any kind that produces blackish spores, or seed
     dust. The melanosperms include the rockweeds and all kinds of
     kelp. -- Mel`a*no*sper"mous, a.
     [1913 Webster]