Cyanophyceæ. | Schizomycetes. Palmellaceæ (in part). | Saccharomycetes. Class II. =Zygosporeæ.= Conjugating cells motile. Pandorineæ. | Myxomycetes. (Hydrodictyeæ). | Conjugating cells stationary. Conjugatæ (including | Zygomycetes. Diatomaceæ). |