CLASSIFIED CATALOG OF ILLINOIS ALGAE 91 



O. GRACiLius (Wittr.) Tiff. Tiffany, loc. ciL, p. 36. pi. 11. f. 143, 144 



(1937). 



Oedogonium plagiostomum var. gracilius Wittr, 



Transeau 1913B, p. 84, as 0. p. var. gracilius: Coles, Charleston 

 — ponds (Apr.-June). Jasper, Newton — pond (May). Moultrie, 

 Sullivan — cut-off of Kaskaskia River (July). Tiffany 1930, p. 81, 

 as 0. p. var. gracilius; 1937, p. 36; 1939, p. 91. 



O. GRACiLLiMUM Wittr. & Lund. Tiffany, loc. cit., p. 54. pi. 22. f. 353 



(1937). 



Transeau 1913B, p. 83: Coles, Ashmore, Charleston, Dorans, 

 Lerna — ponds and pools (Apr.-June), laboratory aquaria (Feb., 

 Mar.). Montgomery, Coffeen— Mill Pond (May). Tiffany 1930, 

 p. 116; 1937, p. 54; 1939, p. 91. 



O. GRANDE Kuetz. Tiffany, loc. cit., p. 38. pi. 13. f. Xll-lU (1937). 

 Transeau 1913B, p. 83; 1913C, p. 34: Clark, Casey— pond 

 (Nov.). Coles, Ashmore — ^ Polecat Creek, ponds and pools (May- 

 July, Oct.); Charleston — Kickapoo Creek and other small 

 streams, ponds, ditches (all months) ; Humboldt, Lerna, Loxa — 

 creeks and ponds (May-July). Ohashi 1930, p. 177: Cook, Chi- 

 cago — pond in Palos Park. Transeau: Cumberland, Greenup — 

 pond and ditch (Apr., Nov.). Effingham, Effingham — roadside 

 pool (May). Jasper, Bogota — creek (Aug.); Newton — pond 

 (May, Aug.) ; Wheeler — pond (Sept.). Lawrence, Lawrenceville— 

 small pond 4 miles N.E., and gravel pit (Apr., Aug.) ; Pinkstaff — 

 Bee Branch Creek (Nov.). Montgomery, Coffeen — ponds (May). 

 Moultrie, Sullivan — artificial pond (July). Tiffany 1930, p. 85; 

 1937, p. 38; 1939, p. 91. 



O. GRANDE var. AEQUATORIALE Wittr. Tiffany, loc. cit., f. 175 (1937). 

 Transeau: Cumberland, Greenup — pond (May). 



O. HOWARDii G. West. Tiffany, loc. cit., p. 49. pi. 20. f. 290, 291 (1937). 

 Oedogonium howardii var. minus Tiffany 



Tiffany 1927, p. 204; 1930, p. 102, as 0. h. var. minus; 1937, 

 p. 49; 1939, p. 91: Lawrence. Transeau: Moultrie, Sullivan — 

 cut-off of Kaskaskia River (July). 



O. HYSTRiciNUM Trans. & Tiff. Tiffany, loc. cit., p. 56. pi. 30. f. 481, 



482 (1937). 



Transeau & Tiffany 1919, p. 240; Tiffany 1930, p. 120; 1937, 

 p. 56; 1939, p. 91: Coles, Charleston — temporary pond (May). 

 Britton: Cook, Techny — small pond about 1| miles S.W., May 

 12, 1938, #64. 



O. IDIOANDROSPORUM (Nordst. & Wittr.) Tiff. Tiffany, loc. cit., p. 66. 



pi. 33. f. 523, 524 (1937). 



Oedogonium crassiusculum var. idioandrosporum Nordst. & Wittr. 

 Transeau 1913B, p. 82, as 0. c. var. idioandrosporum: Clark, 

 Casey — pond (Oct.). Coles, Charleston, Lerna — ponds (May, 



