水韭属
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}.
Isoetes n : type and genus of the Isoetaceae and sole extant genus of the order Isoetales [syn: {genus Isoetes}]