32] 



The Classification of Lower Organisms 



Fig. 4. — Coccogonea: a, Chroococcus sp.; b, C, Achromatiuni oxalijerum. Gloio- 

 phycea: d, Oscillatoria splendida; e, Phormidium sp.; f, Beggiatoa sp.; g, Chamae- 

 siphon incrustans; h, Anabaena inacqualis; \, Cylidrospcrmum majus; j, Chlarnydo- 

 thrix ochracea; k, 1, m, Clonothrix fusca after Kolk (1938); n, Dermocarpa protea 

 after Setchell and Gardner ( 1919); o, Crenothrix polyspora after Kolk ( 1938). All 

 X 1,000. 



