230 The Ohio Journal of Science [Vol. XVII, No. 7, 



Stigeoclonium lubricum (Dillw.) Kiitz. Lake Rowland, Hough- 

 ton Co., 1915 (Hankinson). 



Stigeoclonium aestivale (Hazen) Collins. Lake Rowland, 

 Houghton Co.. 1905 (Hankinson), (fide Collins). 



Stigeoclonium tenue (Ag.) Kiitz. Carp Lake, Emmet Co., 

 Aug. 9, 1915. 



Stigeoclonium glomeratum (Hazen) Collins. Bog stream, Sauge- 

 tuck, June 1, 1915; bog north of Blaney, Aug. 12, 1915. 



Draparnaldia plumosa (Vauch) Ag. Walnut Lake, Oakland 

 Co., May 1, 1906. (Hankinson); ditch, Douglas Lake, 

 May 1, 1906 (Hankinson); stream. New Buffalo, May 31, 

 1915; Carp Lake, Aug. 9, 1915. 



MICROTHAMNIACE.E. 



Micro thamnium exiguum Reinsch. Bog near CafTey, Mackinac 

 Co., Aug. 13, 1915; bog pool, Seney, Aug. 12, 1915. 



Gongrosira lacustris Brand. Au Sable River, Grayling, Craw- 

 ford Co., Aug. 24, 1916 (Hankinson). Not previously 

 reported from America. 



COLEOCHAETACE.E. 



Coleochaete irregularis Pringsheim. New Buffalo, May 31, 1915. 

 Coleochaete nitellarum Jost. Twin Lake, Muskegon Co., 



June 2, 1915. On Chara sp.? 

 Coleochaete scutata Brebisson. Railroad pool. New Buffalo, 



May 31, 1915; pond east of Manistique, Aug. 11, 1915. 

 Coleochaete pulvinata A. Br. Trout Lake, Chippewa Co., 



Aug. 10, 1915. 



CYLINDROCAPSACE.^. 



Cylindrocapsa geminella WoUe. Saugetuck, June 1, 1915; ditch 

 at Breedsville, June 4, 1915. 



MICROSPORACE.E. 



Microspora stagnorum (Kiitz.) Lagerh. Beach pools. Isle 



Roy ale, Aug. 1, 1910 (Cooper). 

 Microspora amoena (Kiitz) Rabenh. Pools, New Buffalo, May 



31, 1915; Twin Lake, June 2, 1915; bog, Saugetuck, June 1, 



1915. 

 Microspora crassior (Hansg.) Hazen. Bog pool, Saugetuck, 



June 1, 1915; ditch, Breedsville, June 4, 1915. 

 Microspora pachyderma (Wille) Lagerh. Pool, New Buffalo, 



May 31, 1915. 



