Pflanzenreich Haeckel (1866) - plants Division Euthallophyta Subdivision Schizophyta 1 Class Schizomycetes Nägeli (1857) see Class Schizomycetes Nägeli 1857 nom. inval. 2 Class Schizophyceae Cohn (1879) - blue-green algae see Class Schizophyceae Knoblauch 1890