68 A CATALOG OF ILLINOIS ALGAE 



S. GUATiMALENSis Ehr. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 

 2): 543 (1927). 



Surirella cardinalis Kitton 



Thomas & Chase 1887, p. 330, as 5. cardinalis: Cook, Chicago — 



Lake Michigan. 



S. LINEARIS W. Smith. Boyer, loc. cit., p. 538 (1927). 



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



S. LINEARIS var. CONSTRICTA (Ehr.) Grun. Hustedt in Pascher, Suess- 

 wass-fl. Mitteleur. 10: 434. f. 839 (1930). 



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



S. MiNUTA Breb. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) : 542 



(1927); Mills, Index Diat., pp. 1527, 1531 (1934). 

 Surirella ovalis var. minuta (Breb.) Kirch. 



Transeau: Coles, Charleston, Dorans — small streams and ditches 

 (Mar. -May) ; Kofoid 1908, p. 58, as 6*. ovalis var. minuta: Mason, 

 Havana — Illinois River (all months). 



S. OREGONICA Ehr. Mills, Index Diat., p. 1530 (1934). 



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



S. OVALIS Breb. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) : 541 

 (1927). 



Transeau: Coles, Mattoon — swamp (Apr.). 



S. OVALIS var. pinnata V. H. Mills, Index Diat., p. 1531 (1934). 

 Transeau: Coles, Charleston — small stream (Oct.). 



S. OVATA Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) : 



541 (1927). 



Transeau: Coles, Charleston — small streams (Jan., Mar.-May, 

 Nov.). Thomas & Chase 1887, p. 330; Daily 1938, p. 79: Cook, 

 Chicago, Evanston — Lake Michigan. Kofoid 1903, p. 516: 

 Mason, Topeka — Quiver Creek (Sept., Nov., Dec, Mar.). 



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



445. f. 868 (1930). 



Transeau: Coles, Dorans — ditch (May). 



S. ROBUSTA Ehr. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) : 537 



(1927). 



Eddy 1934, p. 387: Champaign, Mahomet — Sangamon River 

 (July-Sept.); 1927B, pp. 215, 221: Cook, Chicago— Lake Michi- 

 gan (July); 1931A, p. 483: Macon, Harristown — Sangamon 

 River (July); 1931 B, pp. 457, 480: Pulaski, Wetaug— sink-hole 

 ponds (Oct., Apr.); 1931A, p. 486: Sangamon, Riverton— Sanga- 

 mon River (Sept.). 



S. SAXONICA Auersw. Boyer, loc. cit., p. 535 (1927). 



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



