70 A CATALOG OF ILLINOIS ALGAE 



Adams — Mississippi River (June). Alexander — Horseshoe 

 Lake (June-Aug.)- Calhoun — Mississippi River (June). Carroll — 

 Mississippi River (July, Sept.). Cass, Chandlerville — Sangamon 

 River (June-Sept.). Champaign, Urbana — ox-bow pond (Aug.). 

 Coles, Charleston — ponds (May-Oct.). Cook, Chicago — Lake 

 Michigan; Wheeling — DesPlaines River at Dundee Road, Aug. 

 8, 1939, #766. Fulton — Thompson's Lake (June). Hancock, 

 Henderson — Mississippi River (June, July). Henry, Colona — 

 Slough (June-Aug.). Jersey — Mississippi River (June). Jo 

 Daviess^ — Mississippi River (July, Sept.). Lake, Antioch — 

 Grass Lake-Lake Marie Channel, Sept. 14, 1939, #1029; Fox 

 Lake— in Fox Lake, Aug. 25, 1939, #951 ; Halfday— swamp about 

 2^ miles W., July 29, 1938, #184; Klondike— Grass Lake, Grass 

 Lake-Fox Lake channel, and small channel entering E. side of 

 Grass Lake, Aug. 25, 1939, #945, 948, 971; Lake Zurich— in 

 Lake Zurich, Aug. 24, 1939, #914; Long Lake— in Long Lake 

 ("summer"). Macon, Decatur^ — Lake Decatur (June-Sept.). 

 Madison — Mississippi River (June). Mason, Havana — Illinois 

 River (Feb.-Oct.); Quiver Lake (June); Topeka — Quiver Creek 

 (Apr.). McHenry, Greenwood — Nippersink Creek, July 6, 1939, 

 #365, 366; McHenry — swamp E. side of McCuIlom Lake, July 7, 

 1939, #401, 402; Richmond— Twin Lakes (Lake Elizabeth), Aug. 

 2, 1939, #729; Woodstock— pond 2^ miles W., July 8, 1939, #439, 

 445. Menard, Petersburg — Sangamon River (June, Sept.). Mer- 

 cer, New Boston — Mississippi River, Sturgeon Bay (July). 

 Montgomery, Coffeen — pond (May). Morgan, Meredosia — Illi- 

 nois River. Piatt, Monticello — Sangamon River (Sept.). Pike — 

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

 (Apr., July, Sept., Dec). Rock Island — Mississippi River (July, 

 Sept.). Sangamon, Illiopolis, Riverton, Springfield — Sangamon 

 River (July). St. Clair — Mississippi River (June). Union, Larue 

 — Wolf Lake (June-Aug.). Whiteside, Erie — Rock River Slough 

 (June-Aug.); Sterling — Rock River ("summer"). 



GONIUM Mueller, 1773 



G. PECTORALE Muell. Tiffany, loc. cit., p. 41. pi. 15. f. 357 (1934). 

 Collins 1909, p. 132; Transeau 1913B, p. 79: Coles, Charleston- 

 ponds and small streams (Jan., June, July). Britton: Cook, Niles 

 — shallow intermittent pond at Dempster St. and Milwaukee 

 Ave., Apr. 7, 1939, #224; Sag Bridge— small shallow ponds, 

 July 13, Sept. 8, 1939, #510, 994. Kofoid 1908, pp. 82, 322: 

 Mason, Havana^ — Illinois River (May, Aug., Sept.). Eddy 

 1931 A, pp. 481, 484: Sangamon, Riverton, Springfield — Sanga- 

 mon River (July-Sept.). 



