• Microspora Hassall, 1843 (unaccepted) [Family: Cladophoraceae]
• Microspora Thuret, 1850 [Family: Microsporaceae]
• Microspora Velenovský, 1934 [Family: Helotiales incertae sedis]
• Microspora abbreviata (Rabenhorst) Lagerheim, 1887
• Microspora aequabilis Wichmann
• Microspora amoena (Kützing) Rabenhorst, 1868
• Microspora crassior (Hansgirg) Hazen, 1902
• Microspora elegans Hansgirg, 1891 accepted as Microspora amoena (Kützing) Rabenhorst, 1868
• Microspora ficulinae P.J.L. Dangeard, 1932
• Microspora floccosa (Vaucher) Thuret, 1850
• Microspora fontinalis (Berkeley) De Toni, 1889 accepted as Rhizoclonium hieroglyphicum (C. Agardh) Kützing, 1845
• Microspora fugacissima (Roth) Rabenhorst
• Microspora irregularis (W. West & G.S. West) Wichmann, 1937
• Microspora laevis (Kutzing) Rabenhorst
• Microspora lauterborni Schmidle, 1895
• Microspora loefgrenii (Nordstedt) Lagerheim, 1887
• Microspora manifesta Novis
• Microspora membranacea Wang, 1934
• Microspora pachyderma (Wille) Lagerheim, 1887
• Microspora palustris Wichmann
• Microspora quadrata Hazen, 1902
• Microspora rotundata Novis
• Microspora rufescens (Kutzing) Lagerheim
• Microspora spirogyroides Skuja
• Microspora stagnorum (Kützing) Lagerheim, 1887
• Microspora tenerrima (Kützing) Gay, 1886 accepted as Ulothrix tenerrima (Kützing) Kützing, 1843
• Microspora tenuiderma G.M. Lokhorst
• Microspora tumidula Hazen, 1902
• Microspora willeana Lagerheim, 1889
• Microspora wittrockii (Wille) Lagerheim, 1887
• Microsporaceae
• Microsporales accepted as Sphaeropleales