In context|botany|lang=en terms the difference between microspore and microsporogenesis

is that microspore is (botany) smaller of the two spores produced by plants, compare megaspore while microsporogenesis is (botany) in angiosperms, the formation of pollen and thus the production of the male gametophyte.

As nouns the difference between microspore and microsporogenesis

is that microspore is (botany) smaller of the two spores produced by plants, compare megaspore while microsporogenesis is (botany) the formation of four haploid microspores by meiosis.