Dichotomosiphon tuberosus, Ernst.* This comparatively rare plant was found by the writer in Wilcox Lake.
Family Cladophoraceae. Cladophora fracta, Kg.
,, glomerata, Kg.
Chara foetans.* In great abundance in Howard Lake, Toronto Island, and elsewhere. Probably other species as well.
,, batrachospermum.* Found repeatedly in a small pond on Toronto Island, south-west of Lakeside Home.
Mackenzie, J. J. A Preliminary List of Algae Collected in the Neighbourhood of Toronto. Proc. of the Can. Inst., Toronto. 3rd Ser., vol. VII, p. 270.
Collins, F. S. The Green Algae of North America. Tufts College Studies, vol. II, No. 3. Tufts College, Mass.
Tilden, J. Minnesota Algae, vol. I (The Blue-green Algae of North America).