Pflanzenreich Haeckel (1866) - plants Division Euthallophyta Subdivision Schizophyta Class Schizophyceae Cohn (1879) - blue-green algae see Class Schizophyceae Knoblauch 1890 Subclass Coccogoneae 1 Family Chroococcaceae Nägeli (1849) see Family Chroococcaceae Nägeli 1849 2 Family Chamaesiphonaceae Borzì (1878) see Family Chamaesiphonaceae Borzì 1878