Pflanzenreich Haeckel (1866) - plants Division Euthallophyta Subdivision Schizophyta Class Schizophyceae Cohn (1879) - blue-green algae see Class Schizophyceae Knoblauch 1890 Subclass Psilonemateae Family Scytonemataceae A.B.Frank (1886) see Family Scytonemataceae corrig. Frank 1886