38 A CATALOG OF ILLINOIS ALGAE 



(July, Sept.). Briggs 1872A, p. 43; Thomas & Chase 1887, p. 328; 



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



Galtsoff, loc. cit. (1924): Hancock, Henderson, Jo Daviess, 



Mercer, Rock Island, Whiteside — Mississippi River (July, 



Sept.). 

 C. MiCHiGANiANA Skvortz. Skvortzow, Amer. Midi. Nat. 18: 658. pi, 

 1. f. 3, 10, 18 (1937). 



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

 C. OCELLATA Pant. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 10: 

 100. f. 68 (1930). 



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

 C. OPERCULATA (Ag.) Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila. 78 

 (Suppl. 1):39 (1927). 



Briggs 1872A, p. 43; Thomas & Chase 1887, p. 328; Skvortzow 



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



MELOSIRA Agardh, 1824 



M. CRENULATA (Ehr.) Kuetz. Boyer, loc. cit., p. 29 (1927). 



Galtsoff 1924, pp. 399, 401, 402, 404, 405, 409, 410: Carroll- 

 Mississippi River (July, Sept.). Thomas & Chase 1887, p. 329: 

 Cook, Chicago — Lake Michigan. Galtsoff, loc. cit. (1924): Han- 

 cock, Henderson, Jo Daviess, Mercer — Mississippi River (July- 

 Sept.). Rock Island — Mississippi and Rock Rivers (July-Sept.). 

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



M. DisTANS (Ehr.) Kuetz. Boyer, loc. cit., p. 30 (1927). 

 Gaillonella distans Ehr. 



Bailey 1845, p. 34, as Gaillonella distans: St. Clair — Mississippi 

 River. 



M. GRANULATA (Ehr.) Ralfs. Boyer, loc. cit. (1927) ; Mills, Index Diat. 



pp. 895, 929 (1934). 



Melosira granulata var. spinosa Balach.; Lysigonium granulatum 

 (Ehr.) Kuntze. 



Briggs 1872A, p. 44; Thomas & Chase 1887, p. 329; Jelliffe 1893, 

 p. 311 (Cook). Kofoid 1908, pp. 11, 35, 43, 52, 292, 318, as M. g. 

 var. spinosa (Mason). Forbes & Richardson 1913, p. 500; 1919, 

 p. 145, as M. g. var. spinosa (LaSalle, Peoria, Putnam). Galtsoff 

 1924, p. 402 (Mississippi River). Eddy 1927B, pp. 208, 219, as 

 Lysigonium granulatum (Cook); 1927A, pp. 127, 136 (Cham- 

 paign). Eddy & Simer 1929, p. 62, as Lysigonium granulatum 

 (Morgan). Eddy 1931A, pp. 474, 477, 480, 483, 486, as Lysigon- 

 ium granulatum (Cass, Macon, Menard, Sangamon); 1931B, p. 

 460, as Lysigonium granulatum (Pulaski) ; 1934, pp. 385, 386, 388- 

 391, 395, 399, 400, 402, 403, as Lysigonium granulatum (Adams, 

 Alexander, Calhoun, Champaign, Cook, Hancock, Jackson, 

 Jersey, Lake, Macon, Madison, Mason, Massac, McHenry, 



