CLASSIFIED CATALOG OF ILLINOIS ALGAE 59 



Family: GOMPHONEMATACEAE 



GOMPHONEIS Cleve, 1894 



G. HERCULEANA (Ehr.) CI. Boyer, Proc. Acad. Nat. Sci. Phila. 79 

 (Suppl. 2): 299 (1927). 



Gomphonema eriense Grun. ; Gomphonema herculeanum Ehr. 



Thomas & Chase 1887, p. 329, as Gomphonema eriense and 



Gomphonema herculeanum: Cook, Chicago — ^Lake Michigan. 

 G. HERCULEANA var. ROBUSTA (Grun.) CI. Mills, Index Diat., pp. 

 789, 800 (1934). 



Gomphonema rohustum Grun. 



Thomas & Chase 1887, p. 329, as Gomphonema rohustum: Cook, 



Chicago — Lake Michigan. 



GOMPHONEMA Agardh, 1824 



G. ACUMINATUM Ehr. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl, 



2): 290 (1927). 



Transeau 1916, p. 124: Coles, Charleston — ponds and small 

 streams (Mar., Oct., Dec). Thomas & Chase 1887, p. 328; Eddy 

 1927B, pp. 208, 220: Cook, Chicago— Lake Michigan (Apr., 

 May, Sept.-Nov.). Transeau: Cumberland, Greenup — ditch 

 (Nov.). Agersborg 1930, p. 106: Macon, Decatur — warm waste- 

 water ditch (Dec.-Feb.). 



G. ACUMINATUM var. CORONATUM (Ehr.) Rab. Boyer, loc. cit., p. 291 



(1927). 



Gomphonema coronatum Ehr. 



Thomas & Chase 1887, p. 329, as G. coronatum: Cook, Chicago — 

 Lake Michigan. 



G. ACUMINATUM var. ELONGATUM (W. Sm.) V. H. Boyer, loc. cit. 



(1927). 



Gomphonema acumiftatum var. intermedia Grun. 



Thomas & Chase 1887, p. 328, as G. a. var. intermedia: Cook, 

 Chicago — Lake Michigan. 



G. ACUMINATUM var. LATICEPS (Ehr.) A. Schmidt. Mills, Index Diat., 



p. 774 (1934). 



Gomphonema laticeps Ehr. 



Thomas & Chase 1887, p. 329, as G. laticeps: Cook, Chicago — 

 Lake Michigan. 



G. ACUMINATUM var. TRIGONOCEPHALUM (Ehr.) CI. Boyer, Proc 



Acad. Nat. Sci. Phila 79 (Suppl. 2): 291 (1927). 

 Gomphonema trigonocephalum Ehr. 



Thomas & Chase 1887, p. 329, as G. trigonocephalum: Cook, 

 Chicago — Lake Michigan. 



