120 A CATALOG OF ILLINOIS ALGAE 



pond (Apr.). Coles, Charleston — ponds and ditches (Apr.-Aug., 

 Oct.); Lerna— ponds (May). Johnson & Atwell 1890, p. 20, as 

 Pleurocarpus mirabilis; O'Hanlon 1930, p. 98, as M. mirahilis: 

 Cook, Palos Park — pond (June); Winnetka — (Apr.). Transeau: 

 Effingham, Effingham — ditch (May). Richland, Olney — Fox 

 River (Aug.). 



M. GRACiLLiMA (Hass.) Wittr. Transeau, loc. cit., p. 325. pi. 6. f. 95, 



96 (1926). 



Transeau 1926, p. 325: Clark, Casey— pond 3| miles N. (Apr.). 



M. NUMMULOIDES (Hass.) DeToni. Transeau, loc. cit., p. 317. pi. 1. 



f. 15, 16 (1926). 



Mesocarpus nummuloides Hass. 



Johnson & Atwell 1890, p. 20, as Mesocarpus nummuloides: 

 Cook, Evanston — aquarium (Mar.). 



M. QUADRANGULATA Hass. Transcau, loc. cit., p. 324. pi. 5. f. 70-72 



(1926). 



Transeau 1913B, p. 78; 1926, p. 324: Coles, Charleston— ponds 

 and pools (May). 



M. REiNSCHii Trans. Transeau et al.. Trans. Amer. Mic. Soc. 53: 224. 



pi. 20. f. 44 (1934). 



Mougeotia genufiexa var. gracilis (Kuetz.) Reinsch. 



Transeau 1913B, p. 78; 1926, p. 320; Collins 1918, p. 21, as M. 

 g. var. gracilis: Coles, Charleston, Lerna — ponds and ditches 

 (Mar.-May, Aug.). 



M. ROBUSTA (DeBary) Wittr. Transeau, Ohio Jour. Sci. 26: 318. pi. 3. 



f. 39-41 (1926). Czurda in Pascher, Suesswass.-fl. Mitteleur. 9: 73. f. 



53 (1932). 



Mougeotia robusta var. hiornata wittr. 



Transeau 1913B, p. 78; 1916, p. 124; 1926, p. 318; Collins 1918, 

 also as M. r. var. hiornata: Clay — pond and small stream (May). 

 Coles, Charleston — ponds, pools and small streams (Apr.-July, 

 Sept.), on cement near lake (June). Jasper, Bogota — creek 6 

 miles S.W. (Aug.). Montgomery, Coffeen — reservoir pond 

 (May). 



M. scALARis Hass. Transeau, loc. cit., p. 317. pi. 2. f. 25-27 (1926); 



DeToni, Sylloge Algarum 1(2): 712 (1889). 

 Mesocarpus scalaris DeBary 



Transeau 1913B, p. 78; 1916, p. 124; 1926, p. 317: Coles, Ash- 

 more — ponds (Apr.); Charleston — ponds (May). Johnson & 

 Atwell 1890, p. 20, as Mesocarpus scalaris: Cook, Winnetka — 

 (Apr.). Transeau: Montgomery, Coffeen — stream (May). 



M. SPHAEROCARPA Wolle. Trauscau, loc. cit., p. 319. pi. 3. f. 28-33 



(1926). 



Mougeotia divaricata Wolle 



Transeau 1913B, p. 78, as M. divaricata: Clark, Casey — pond 



