microspore definition

  • noun:
    • Botany small of two types of spores that provide rise to a male gametophyte.
    • a little spore.
    • one of many extremely small spores found in specific flowerless plants, as Selaginella and Isoetes, which bear two types of spores, one really smaller than another. Cf. macrospore.
    • In botany, an asexually created spore of small-size as compared with other people made by equivalent species: the homologue associated with the pollen-grain of phanerogams.
    • In zoology, among spore-like elements, of exceedingly small dimensions, but extremely many, produced through encystment and subsequent subdivision of numerous monads.
    • smaller of 2 kinds of spore produced in heterosporous plants; develops into the pollen sac into a male gametophyte

Related Sources

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