The male gametes of bryophytes are biflagellate, and those of Pteridophytes are multiflagellate, except selaginella having biflagellate gametes. The male gametes of gymnosperms are non motile except those of Cycas having multiciliate gametes. Zygnema, Spirogyra, Saprolegnia -Green algae Hydrilla, Calotropis - Angiosperm Fucus - Brown algae Marsilea, Dryopteris, Anthoceros Pteridophyte Riccia, Funaria - Bryophyta Cycas-Gymnosperm