148 A CATALOG OF ILLINOIS ALGAE 



Sangamon); 1931B, pp. 456, 463 (Pulaski); 1934, pp. 385, 388- 

 397, 399, 402, 403 (Adams, Alexander, Champaign, Calhoun, 

 Hancock, Henry, Jersey, Macon, Madison, Ogle, Piatt, Pike, 

 St. Clair, Union, Whiteside). 



Adams — Mississippi River (June); Quincy^ — Quincy Bay 

 (Aug.). Alexander — Horseshoe Lake (June-Aug.). Calhoun^ — 

 Mississippi River (June); Kampsville — Illinois River (June- 

 Nov.). Cass, Chandlerville — Sangamon River (June-Sept.). 

 Champaign, Mahomet — Sangamon River (July-Aug.); Seymour 

 — temporary pond (Apr.-July); Urbana — ponds (Apr. -Aug.). 

 Coles, Charleston — ponds, pools and streams (all months). Cook, 

 Chicago — Lake Michigan; Evanston^ — small stream and ditches 

 ("spring and autumn"). Fulton — Illinois River and adjacent 

 lakes (May-Dec); Spoon River (June-Nov.). Grundy, Morris — 

 Illinois River (June-Aug.). Hancock — Mississippi River (June). 

 Henry, Colona^ — slough (June-Aug.). Jersey — Mississippi River 

 (June). Knox, Galesburg — Lake Knox. LaSalle, LaSalle — Illinois 

 River (June-Nov.). Macon, Decatur — Park pond (Feb.-Oct., 

 Dec); Lake Decatur (all months); warm waste-water ditch 

 (Dec, Feb.). Harristown — Sangamon River (June-Sept.). Madi- 

 son—Mississippi River (June). Marshall, Henry — Illinois River 

 (Mar.-Aug.). Mason, Havana — Illinois River, lakes and seepage 

 pools (Mar.-Dec). Menard, Petersburg^ — Sangamon River 

 (June-Sept.). Ogle, Byron- — slough (June-Aug.); Grand Detour 

 — slough (June-Aug.). Peoria, Chillicothe, Peoria— Illinois River 

 (all months). Piatt, Monticello — Sangamon River (Mar.-Nov.). 

 Pike — Mississippi River (June). Pulaski, Wetaug — sink-hole 

 ponds (July, Sept., Dec). St. Clair^ — Mississippi River (June). 

 Tazewell^ — Mackinaw River (Aug.). Union, Larue — Wolf Lake 

 (June-Aug.). Whiteside, Erie — Rock River and Hatwood 

 sloughs (June-Aug.). Will, Joliet — DesPlaines River (Mar.- 

 Oct.) ; Lockport — Chicago Drainage Canal and DesPlaines River 

 ("spring and summer"). 



LEPOCINCLIS Perty, 1849 



L. OVUM (Ehr.) Lemm. Walton, loc. cit., p. 375. pi. 15. f. 6 (1915). 

 Kofoid 1908, pp. 82, 292, 322: Mason, Havana — Illinois River 

 (Jan., Apr.-Nov.). 



PHACUS Dujardin, 1841 



P. ACUMINATA Stokes. Walton, loc. cit., p. 381. pi. 17. f. 4 (1915). 

 Eddy 1931 A, p. 484: Macon, Harristown — Sangamon River 

 (Sept.). Menard, Petersburg — Sangamon River (Sept.). Eddy 

 1934, p. 393: Piatt, Monticello— Sangamon River (May, Aug.- 



