CLASSIFIED CATALOG OF ILLINOIS ALGAE 107 



C. PARASITICA Brandt. Smith, loc. cit. (1933). 

 Zoochlorella parasitica Brandt. 



Transeau 1913B, p. 80, a.s Zoochlorella parasitica: Coles, Charles- 

 ton — in freshwater sponge in pond. 



C. VULGARIS Beijer. Tiffany, Contrib. Franz T. Stone Lab. 6: 54. pi. 9. 



f. 180 (1934). 



Forbes & Richardson 1913, p. 502: Will, Lockport"encrusting 

 stones" in Sanitary Canal. 



CLOSTERIOPSIS Lemmermann, 1898 



C. LONGissiMA Lemm. Tiffany, loc. cit., p. 53. f. 173 (1934). 



Eddy 1931B, p. 461: Pulaski, Wetaug — sink-hole pond (Sept., 

 Dec). 



DACTYLOCOCCUS Naegeli, 1849 



D. INFUSIONUM Naeg. Smith, Freshw. Alg. U. S., p. 507. f. 384 (1933). 



Kofoid 1908, p. 34: Mason, Havana — Illinois River. 



DICTYOSPHAERIUM Naegeli, 1849 



D. EHRENBERGIANUM Naeg. Tiffany, Contrib. Franz T. Stone Lab. 6: 



54. pi. 9. f. 168 (1934). 



Jelliffe 1893, p. 311; Britton: Cook, Chicago — Lake Michigan; 

 Sag Bridge — small ponds and swamps, July 13, 1939, #494, 529, 

 530; Schnells Corner — pond in Elk Grove Forest Preserve, Aug. 

 8, 1939, #790. Britton: Lake, Volo— Fish Lake, Aug. 24, 1939, 

 #935. McHenry, Woodstock— swamp 2 miles S.E., July 7, 1939, 

 #403. 



D. PULCHELLUM Wood. Tiffany, loc. cit., f. 167 (1934). 



Eddy 1927B,pp. 208, 215,' 222; Daily 1938, p. 80; Britton: Cook, 

 Chicago^ — Lake Michigan (July, Aug.); Argonne Forest Preserve 

 —Maple Lake, July 13, 1939, #487; Evanston— Lake Michigan; 

 ponds in Memorial Park Cemetery, June 27, 1938, #103, 104; 

 Glen view — swamp and temporary pond about \\ miles W., 

 Oct. 3, 1938, #219; Palos Park— Calumet Sag Channel at Kean 

 Ave., July 14, 1939, #559; Sag Bridge— small ponds, July 13, 

 1939, #510, 530, Sept. 8, 1939, #1015, swamps, July 13, 1939, 

 #488, 492, 494, 495, 503. Britton: Lake, Fox Lake— in Fox, 

 Nippersink, Grass, Petite, Marie and Channel Lakes and con- 

 necting channels, July 25, Aug. 25, Sept. 8, 14, 1939, #602, 604, 

 943, 945, 948, 950, 953, 954, 958, 971, 1028, 1029, 1032, 1033, 

 1035; Lake Zurich— in Lake Zurich, Aug. 24, 1939, #914; Volo— 

 bog at Tamarack Farm, June 3, 1939, #294. McHenry, Johns- 

 . burg— Pistakee Lake, July 25, 1939, #592; McHenry— swamp 

 E. of McCullom Lake, July 6, 1939, #374, 376; small pond about 

 1 mile N.W. of McCullom Lake, July 6, 1939, #390; Ringwood— 



