CLASSIFIED CATALOG OF ILLINOIS ALGAE 151 



Monticello — Sangamon River (May-Oct.). Sangamon, Illiopolis, 

 Riverton — Sangamon River (Sept.)- 



P. PYRUM (Ehr.) Stein. Walton, loc. cit., p. 382. pi. 17. f. 9 (1915). 

 Hempel 1898, p. 326; Kofoid 1908, p. 85: Mason, Havana- 

 Illinois River (Aug., Oct.). 



P. TRIQUETER (Ehr.) Duj. Walton, loc. cit., p. 380. pi. 16. f. 9 (1915). 

 Euglena trigueter Ehr. 



Britton: Cook, Sag Bridge-small pond, Sept. 8, 1939, #996. 

 Hempel 1898, p. 326; Kofoid 1908, p. 85: Mason, Havana- 

 Illinois River (July-Sept.). Bailey 1845, p. 34, as Euglena 

 trigueter (?): St. Clair — Mississippi River. 



TRACHELOMONAS Ehrenberg, 1833 



T. ACUMINATA (Schmarda) Stein. Walton, loc. cit., p. 394. pi. 20. f. 4 



(1915). 



Hempel 1898, p. 325: Fulton— Phelp's Lake (July, Aug.). Hem- 

 pel, loc. cit.; Kofoid 1908, pp. 90, 292, 324: Mason, Havana— 

 Matanzas Lake and Illinois River (Apr.-Nov., Feb.). 



T. ARMATA (Ehr.) Stein. Walton, loc. cit., p. 395. f. 10 (1915). 



Britton: Cook, Sag Bridge— small pond, Sept. 8, 1939, #996, 997 

 Hempel 1898, p. 325; Kofoid 1908, p. 91: Mason, Havana- 

 Illinois River ("summer"). Quiver Creek (Oct.). Eddy 1931B, 

 p. 463: Pulaski, Wetaug — sink-hole pond (Sept.). 



T. CAUDATA (Ehr.) Stein. Walton, loc. cit., p. 399. pi. 21. f. 10 (1915). 

 Hempel 1898, p. 325: Fulton— Phelp's Lake and Illinois River 

 (Aug., Sept.). Kofoid 1908, p. 91: Mason, Havana — Illinois 

 River ("summer"). 



T. ENSIFERA Daday. Walton, loc. cit., p. 395. pi. 20. f. 8 (1915). 



Eddy 1931 A, pp. 474, 479, 481, 484: Cass, Chandlerville— 

 Sangamon River (June, July). Macon — Lake Decatur (July). 

 Menard, Petersburg — Sangamon River (July, Sept.). Piatt, 

 Monticello — Sangamon River (June). Eddy 1931 B, pp. 456, 463: 

 Pulaski, Wetaug^ — sink-hole pond (July, Sept.). Eddy, loc. cit. 

 (1931A): Sangamon, Illiopolis, Riverton, Springfield — Sanga- 

 mon River (July, Sept.). 



T. HispiDA (Perty) Stein. Walton, loc. cit., p. 397. pi. 21. f. 3 (1915). 

 Eddy 1934, pp. 396, 397 : Champaign, Seymour — temporary pond 

 (Feb.-July, Oct.); Urbana — ox-bow pond (Apr.-May, Aug.). 

 Eddy 1927B, pp. 209, 224: Cook, Chicago— Lake Michigan 

 (Sept.). Eddy 1931A, pp. 479, 481, 484: Macon— Lake Decatur 

 (July, Sept.); Harristown — Sangamon River (Sept.). Hempel 

 1898, p. 326; Kofoid 1903, p. 516; 1908, pp. 90, 292, 324: Mason, 

 Havana — Illinois River and lakes (all months) ; Topeka — Quiver 

 Creek (Sept.). Eddy, loc. cit. (1931A): Menard, Petersburg — 



