Cyanophyceae

The existence of ciliated micrococci together with the formation of endospores -- structures not known in the Cyanophyceae -- reminds us of the flagellate Protozoa, _e. g.

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In _Beggiatoa_, a filamentous form, peculiar, slow, oscillatory movements are to be observed, reminding us of the movements of _Oscillatoria_ among the _Cyanophyceae_.

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In the two last-mentioned characters and in their manner of division the bacteria resemble Schizophyceae (Cyanophyceae or blue-green algae), and the two groups of Schizophyceae and Schizomycetes are usually united in the class Schizophyta, to indicate the generally received view that most of the typical bacteria have been derived from the Cyanophyceae.

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