46 A CATALOG OF ILLINOIS ALGAE 



Sept.)- Sangamon, Illiopolis, Riverton, Springfield — Sangamon 

 River (July, Sept.)- Whiteside — Mississippi River (July, Sept.). 

 Will, Lockport — DesPlaines River (May). 



S. CAPITATA Ehr. Boyer, Proc. Acad. Nat. Sci. Phila. 78 (Supp. 1) : 203 



(1927). 



Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan. 

 Kofoid 1908, p. 59: Mason, Havana — Illinois River ("spring 

 months"). 



S. DORSiVENTRALis Mucll. Mills, Index Diat., p. 1560 (1934). 

 Transeau: Coles, Charleston^ — small stream (Mar.). 



S. HYALINA Prov. Mills, loc. cit., p. 1566 (1934). 



Kofoid 1908, p. 58: Mason, Havana — Illinois River. 



S. PARASITICA (W. Sm.) Hust. Hustedt in Pascher, Suesswass.-fl. 



Mitteleur. 10: 161. f. 195 (1930). 



Fragilaria parasitica (W. Sm.) Grun. 



Thomas & Chase 1887, p. 328, as Fragilaria parasitica; Ahlstrom 

 1936, p. 292: Cook, Chicago, Evanston — Lake Michigan. 



S. PULCHELLA (Ralfs) Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila. 78 



(Suppl. 1): 198 (1927). 



Baker 1922, pp. 80, 86: Champaign, Urbana — Boneyard Creek 

 and Salt Fork. Transeau: Coles, Charleston — small streams 

 (Mar.). Briggs 1872A, p. 44; Thomas & Chase 1887, p. 330; 

 Jelliffe 1893, p. 310: Cook, Chicago — Lake Michigan. Agersborg 

 1930, p. 110: Macon, Decatur — warm waste-water ditch (Dec- 

 Feb.). 



S. RUMPENS Kuetz. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 10: 



156. f. 175 (1930). 



Thomas & Chase 1887, p. 330: Cook, Chicago— Lake Michigan. 



S. TENERA W. Smith. Hustedt, loc. cit., p. 158. f. 182 (1930).- 

 Transeau:* Coles, Charleston — pond (Nov.). 



S. ULNA (Nitz.) Ehr. Hustedt in Rab., Kryptog.-fl. Deutsch. 7(2): 



195. f. 691Aa-c (1932). 



Synedra lanceolata Kuetz.; Synedra splendens Kuetz.; Synedra 

 vitrea Kuetz. 



Eddy 1934, pp. 387, 392, 393: Champaign, Mahomet— Sanga- 

 mon River (Mar.-July, Nov., Dec). Transeau, as 5". splendens 

 and 5. vitrea: Coles, Charleston — small streams (Jan., Mar., 

 May, Oct., Dec). Briggs 1872A, p. 44, also as S. splendens; 

 Thomas & Chase 1887, p. 330, also as S. lanceolata, S. splendens, 

 and 5. vitrea; Jelliffe 1893, p. 310; Eddy 1927B, pp. 208, 214, 

 220; Daily 1938, pp. 74, 79: Cook, Chicago— Lake Michigan (all 

 months). Agersborg 1930, pp. 106, 110, 113: Macon, Decatur — 

 warm waste-water ditch (Dec-Feb.). Kofoid 1908, p. 59: Mason, 

 Havana — Illinois River ("pulse in May and Nov."), Eddy, loc. 



