274 PROCEEDINGS OF THE CANADIAN INSTITUTE. 



OYANOPHYCEiE. 



XOSTOCACE^ — 



Mastigonema (Fisher), Kirch. 



M. aerugineum (Kg. ), Kirch. ; Humber. 

 Rivularia. 



R. dura, Kg. ; High Park. 

 Tolypothrix, Kg. 



T. flaccida, Kg.; Humber, 

 Nostoc, Vauch. 



N. commune, Vauch. ; High Park and Don Valley. 



N, coeruleum, Lyngb. ; High Park. 

 Anabaena, Bory. 



A. flos-aquae, Kg.; Humber and High Park. 



A. stagualis, Kg.; High Park. 

 Cylindrospermum, Kg. 



C. macrospermum, Kg.; High Park. 

 Lyngbya, Ag. et Thur. 



L. vulgaris (Kg.), Kirch.; Humber. 

 Oscillaria, Bosc. 



O. percursa, Kg. : High Park. 



O.Froelichii, Kg. 



var. fusca, Kg.; Humber. 



0. princeps, Vauch ; High Park. 



Chroococcace.^ — 



Merismopedia, Meyen. 



M. glauca, Naeg. ; High Park. 

 Chroococcus, Naeg. 



C. turgidus, Naeg.; High Park. 



