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microspore |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Microspore \Mi"cro*spore\, n. [Micro- + spore.] (Bot.) One of the exceedingly minute spores found in certain flowerless plants, as {Selaginella} and {Isoetes}, which bear two kinds of spores, one very much smaller than the other Cf {Macrospore}. From WordNet r 1.6 [wn]: microspore n : smaller of the two types of spore produced in heterosporous plants; develops in the pollen sac into a male gametophyte
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