CLASSIFIED CATALOG OF ILLINOIS ALGAE 17 



#954, 956, 971, 1032, 1033, 1035, 1048; Halfday— 3 miles N. in 

 the DesPlaines River at Route 59A, July 29, 1938, #181 ; Lake 

 Zurich— in Lake Zurich, Aug. 24, 1939, #915; Volo— Fish Lake, 

 Aug. 24, 1939, #935; Wauconda— Slocum Lake, Aug. 24, 1939, 

 #926. Eddy 193 IB, p. 451, 460; Pulaski, Wetaug— sink-hole 

 ponds (Apr., Sept.). 



GOMPHOSPHAERIA Kuetzing, 1836 



G. APONINA Kuetz. Daily, loc. ciL, p. 655. f. 20, 21 (1942). 



Eddy 1927B, pp. 214, 218; Britton: Cook, Chicago— Lake 

 Michigan (July); Palos Park— swamp, July 14, 1939, #556; 

 small pond at Palos Golf Club, Sept. 8, 1939, #1000. 



MERISMOPOEDIA Meyen, 1839 



M. CONVOLUTA Breb. Daily, loc. cit., p. 647. f. 16 (1942). 



Solheim & Penfound 1928, p. 86: Champaign, Urbana — spring- 

 fed stream N. of (Mar.-June, Sept.-Dec). Transeau 1913B, p. 

 70: Coles, Charleston — ponds (May-July). Britton 1940, p. 71: 

 Cook, Morton Grove — small reservoir pond, May 10, 1939, #42. 

 Transeau: Jasper, Wheeler — E. of in Embarrass River (Sept.). 



M. GLAUCA (Ehr.) Kuetz. Daily, loc. cit., f. 32 (1942). 

 Merismopoedia tenuissima Lemm. 



Eddy 1927A, pp. 131, 133; Solheim & Penfound 1928, p. 86: 

 Champaign, Urbana — drainage ditch and ox-bow ponds at 

 Crystal Lake Park; spring-fed stream N. of (Aug.). Transeau 

 1913B, p. 70, as M. tenuissima: Coles, Charleston— pond (Sept.). 

 Johnson & Atwell 1890, p. 21; Britton: Cook, Evanston — 

 aquarium (Mar.); Northbrook — small pond about 3 miles S.W., 

 May 12, 1939, #64; Sag Bridg^small pond, Sept. 8, 1939, 

 #1015. Kofoid 1908, pp. 20, 314: Mason, Havana— Illinois River 

 (Jan., Feb., July-Oct.). Eddy 1925, p. 146: Vermilion, Muncie— 

 oxbow pond (Nov.). 



POLYCYSTIS Kuetzing, 1849 



P. AERUGINOSA Kuetz. Daily, loc. cit., p. 638. f. 1 (1942); Drouet & 

 Daily, Field Mus. Nat. Hist., Bot. Ser. 20: 74 (1939). 



Clathrocystis aeruginosa Henfr. ; Microcystis aeruginosa Kuetz. ; 



Microcystis fios-aquae (Wittr.) Kirch.; Microcystis ichthyoblabe 



Kuetz. 



Kofoid 1908, pp. 20, 292, 314, as Clathrocystis aeruginosa and 

 Microcystis ichthyoblabe (Mason). Transeau 1913B, p. 70, as 

 Clathrocystis aeruginosa (Clark). Galtsoff 1924, pp. 399, 401,402, 

 404, 405, 410, as Microcystis flos-aquae and Clathrocystis aeru- 

 ginosa (Carroll, Hancock, Henderson, Jo Daviess, Mercer, Rock 



