CLASSIFIED CATALOG OF ILLINOIS ALGAE 65 



H. AMPHioxYS f. CAPiTATA Muell. Hustedt in Pascher, Suesswass.-fl. 

 Mitteleur. 10: 394. f. 748 (1930). 



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

 H. AMPHIOXYS var. vivax (Hantz.) Grun. Boyer, Proc. Acad. Nat. 

 Sci. Phila. 79 (Suppl. 2): 528 (1927). 



Thomas & Chase 1887, p. 329: Cook, Chicago — Lake Michigan. 



NITZSCHIA Hassall, 1845 



N. ACicuLARis (Kuetz.) W. Smith. Boyer, loc cit., p. 525 (1927). 

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



N. CLAUSii Hantz. Boyer, loc. cit., p. 515 (1927). 

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



N. CLOSTERIUM (Ehr.) W. Smith. Boyer, loc. cit., p. 526 (1927). 



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



N. COMMUTATA Grun. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 



10: 405. f. 774 (1930). 



Transeau: Coles, Charleston — pond and creek (Apr.). 



N. DENTicuLA Grun. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 



2): 506 (1927). 



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



N. DissiPATA (Kuetz.) Grun. Boyer, loc. cit., p. 512 (1927). 



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



N. HUNGARICA Grun. Boyer, loc. cit., p. 498 (1927). 



Transeau: Clark— Whetstone Creek (Oct.). Coles, Charleston — 

 small streams (Jan., Apr.). Briggs 1872A, p. 44; Thomas & Chase 

 1887, p. 330: Cook, Chicago — Lake Michigan. 



N. LINEARIS (Ag.) W. Smith. Boyer, loc. cit., p. 518 (1927). 



Transeau: Coles, Charleston — small streams (Apr., Nov.); Em- 

 barrass — small stream (Mar.). Thomas & Chase 1887, p. 330: 

 Cook, Chicago — Lake Michigan. Agersborg 1930, p. 110: Macon, 

 Decatur — warm waste-water ditch (Dec.-Feb.). 



N. LINEARIS var. TENUIS (W. Sm.) Grun. Boyer, loc. cit. (1927). 



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



N. PALEA (Kuetz.) W. Smith. Boyer, loc. cit., p. 521 (1927). 



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



N. PALEA var. TENUiROSTRis Grun. Hustedt in Pascher, Suesswass.-fl. 



Mitteleur. 10: 416. f. 801a (1930). 



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



N. SIGMOIDEA (Nitz.) W. Smith. Boyer, Proc. Acad. Nat. Sci. Phila. 



79(Suppl. 2): 513 (1927). 



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

 (May, Sept.). Transeau: Coles, Charleston — pond and small 

 stream (Mar.). Thomas «& Chase 1887, p. 330: Cook, Chicago — 

 Lake Michigan. Kofoid 1903, p. 516; 1908, p. 57: Mason, Havana 



