CLASSIFIED CATALOG OF ILLINOIS ALGAE 57 



P. GLOBiCEPS Greg. Boyer, loc. cit., p. 434 (1927); Mills, Index Diat., 

 pp. 1052, 1284 (1934). 

 Navicula globiceps Greg. 



Thomas & Chase 1887, p. 329, as Navicula globiceps: Cook, 

 Chicago — Lake Michigan. 

 P. HEMIPTERA (Kuetz.) W. Smith. Boyer, loc. cit., p. 442 (1927); 

 Mills, loc. cit., pp. 1059, 1285 (1934). 

 Navicula hemiptera Kuetz. 



Briggs 1872A, p. 44; Thomas & Chase 1887, p. 329, as Navicula 

 hemiptera: Cook, Chicago — Lake Michigan. 

 P. INTERRUPTA f. BICAPITATA (Lag.) Fritsch. Mills, loc. cit., p. 1287 

 (1934). 



Navicula hicapitata Lag. 



Thomas & Chase 1887, p. 329, as Navicula hicapitata: Cook, 

 Chicago — Lake Michigan. 

 P. MAJOR (Kuetz.) W. Smith. Boyer, Proc. Acad. Nat. Sci. Phila. 79 

 (Suppl. 2): 446 (1927). 

 Navicula major Kuetz. 



Thomas & Chase 1887, p. 329, as Navicula major; Ahlstrom 1936, 

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

 P. MAJOR var. TRANVERSA (A. Schm.) CI. Boyer, loc. cit. (1927). 



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

 P. MESOLEPTA (Ehr.) W. Smith. Boyer, loc. cit., p. 433 (1927). 

 Navicula mesolepta Ehr. 



Thomas & Chase 1887, p. 329, as Navicula mesolepta: Cook, 

 Chicago — Lake Michigan. 

 P. NOBiLis Ehr. Boyer, loc. cit., p. 445 (1927). 

 Navicula nobilis (Ehr.) Kuetz. 



Thomas & Chase 1887, p. 329, as Navicula nobilis: Cook, Chicago 

 — Lake Michigan. 

 P. PARVA Greg. Boyer, loc. cit., p. 443 (1927); Mills, Index Diat., pp. 

 1115, 1298 (1934). 

 Navicula parva Ralfs. 



Thomas & Chase 1887, p. 329, as Navicula parva: Cook, Chicago 

 — Lake Michigan. 

 P. TABELLARIA Ehr. Boyer, loc. cit., p. 438 (1927); Mills, loc. cit., pp. 

 1167, 1307 (1934). 



Navicula tabellaria Ehr. 



Thomas & Chase 1887, p. 330, as Navicula tabellaria: Cook, 

 Chicago — Lake Michigan. 

 P. TERMEs Ehr. Boyer, loc. cit., p. 433 (1927). 

 Navicula termes Ehr. 



Thomas & Chase 1887, p. 330, as Navicula termes: Cook, Chicago 

 — Lake Michigan. 



