CLASSIFIED CATALOG OF ILLINOIS ALGAE 37 



Class: BACILLARIOPHYCEAE 

 Order: CENTRALES 



Suborder: COSCINODISCINEAE 

 Family: COSCINODISCACEAE 



COSCINODISCUS Ehrenberg, 1838 



C. ASTEROMPHALUS Ehr. Boycr, Proc. Acad. Nat. Sci. Phila. 78 



(Suppl. 1): 56 (1927). 



This species is apparently the one intended but misspelled as 

 C. asteromorphus in Ahlstrom 1936, p. 291: Cook, Evanston — 

 Lake Michigan. 



CYCLOTELLA Kuetzing, 1834 



C. ANTIQUA W. Smith. Boyer, loc. cit., p. 39 (1927). 



Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan. 



C. BODANICA Eulenst. Boyer, loc. cit., p. 40 (1927). 



Skvortzow 1937, p. 656: Cook, Chicago — Lake Michigan (Jan.). 



C. BODANICA var. MiCHiGANENSis Skvortz. Skvortzow, Amer. Midi. 



Nat. 18: 658. pi. 1. f. 31 (1937). 



Skvortzow 1937, p. 658: Cook, Chicago — Lake Michigan (Jan.). 



C. BODANICA var. STELLATA Skvortz. Skvortzow, loc. cit., f. 30 (1937). 

 Skvortzow 1937, p. 658: Cook, Chicago — Lake Michigan (Jan.). 



C. COMTA (Ehr.) Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila 78(Suppl. 



1):40 (1927). 



Thomas & Chase 1887, p. 328; Skvortzow 1937, p. 654: Cook, 

 Chicago^ — Lake Michigan (Jan.). 



C. COMTA var. GLABRiuscuLA Grun. Hustedt in Pascher, Suesswass.- 



fl. Mitteleur. 10: 103 (1930). 



Skvortzow 1937, p. 655: Cook, Chicago— Lake Michigan (Jan.). 



C. GLOMERATA Bachm. Hustedt, loc. cit., p. 105. f. 81 (1930). 

 Daily 1938, p. 79: Cook, Evanston— Lake Michigan. 



C. KUETZINGIANA Thw. Boyer, Proc. Acad. Nat. Sci. Phila. 78(Suppl. 



1):38 (1937). 



Briggs 1872A, p. 43; Skvortzow 1937, p. 655: Cook, Chicago- 

 Lake Michigan (Jan.). Forbes & Richardson 1913, p. 505: 

 Grundy, Dresden Heights — DesPlaines River. Kofoid 1908, 

 pp. 43, 48, 292, 317: Mason, Havana — Illinois River (all 

 months). 



C. MELOSiROiDEs (Kirch.) Lemm. Hustedt in Pascher, Suesswass.-fl. 



Mitteleur. 10: 106. f. 82 (1930). 



Daily 1938, p. 79: Cook, Evanston— Lake Michigan. 



C. MENEGHINIANA Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila. 78 



(Suppl. 1):38 (1927). 



Galtsoff 1924, pp. 399, 402, 404, 405: Carroll— Mississippi River 



