Melanosperm :: Melanosperm (n.) An alga of any kind that produces blackish spores, or seed dust. The melanosperms include the rockweeds and all kinds of kelp..
Menispermaceous :: Menispermaceous (a.) Pertaining to a natural order (Menispermace/) of climbing plants of which moonseed (Menispermum) is the type.
Menispermic :: Menispermic (a.) Pertaining to, or obtained from, moonseed (Menispermum), or other plants of the same family, as the Anamirta Cocculus..
Menispermine :: Menispermine (n.) An alkaloid distinct from picrotoxin and obtained from the cocculus indicus (the fruit of Anamirta Cocculus, formerly Menispermum Cocculus) as a white, crystalline, tasteless powder; -- called also menispermina..
Mesosperm :: Mesosperm (n.) A membrane of a seed. See Secundine.