melanosperm

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• 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] …   The Collaborative International Dictionary of English

• Melanospermous — 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… …   The Collaborative International Dictionary of English