106 A CATALOG OF ILLINOIS ALGAE 



C. RETicuLATUM (Dang.) Senn. Tiffany, loc. cit., f. 163 (1934). 



Transeau: Coles, Charleston — pond (Nov.). Eddy 1927B, pp. 



208, 223: Cook, Chicago— Lake Michigan (Sept.). Eddy 1931 B, 



p. 461: Pulaski, Wetaug — sink-hole pond (Sept.). 

 C. SPHAERICUM Naeg. Tiffany, loc. cit., f. 160 (1934). 



Britton: Cook, Sag Bridge — small ponds and extensive swamp, 



Sept. 8, 1939, #1014, 1016. 



Family: OOCYSTACEAE 

 ANKISTRODESMUS Corda, 1838; Ralfs, 1848 



A. FALCATUS (Corda) Ralfs. Brunnthaler in Pascher, Suesswass.-fl. 



Deutsch. 5(2) : 188. f. 283 (1915) ; DeToni, Sylloge Algarum 1(2) : 592 



(1889). 



Raphidium falcatum (Corda) Cooke; R. polymorphum Fresen.; R. 

 polymorphum var. sigmoideum Rab. 



Johnson & Atwell 1890, p. 19, as Raphidium p. var. sigmoideum 

 (Cook). Jelliffe 1893, p. 311, as Raphidium polymorphum (Cook). 

 Kofoid 1908, pp. 23, 30, 292, 316, as Raphidium polymorphum 

 (Mason). Transeau 1913B, p. 80, as Raphidium falcatum (Coles). 

 Eddy 1927B, pp. 215, 222 (Cook); 1931A, pp. 480, 486 (Cass, 

 Macon, Menard, Sangamon); 1931B, p. 461 (Pulaski). Britton 

 (Cook). 



Cass, Chandlerville — Sangamon River (Sept.). Coles, Charles- 

 ton — pond (Nov.). Cook, Chicago — Lake Michigan (July); 

 Evanston — aquarium (Mar.); Northbrook — small pond and 

 swamp on Techny Road just E. of Landwehr Road, May 12, 

 1938, #62. Macon — Lake Decatur (June); Harristown — Sanga- 

 mon River (June, Sept.). Mason, Havana— Illinois River (all 

 months). Menard, Petersburg — Sangamon River (Sept.). Pu- 

 laski, Wetaug — sink-hole ponds (Sept., Dec). Sangamon, 

 Illiopolis, Riverton, Springfield — Sangamon River (June, Sept.). 



A. LONGissiMUS (Lemm.) Wille. Brunnthaler, loc. cit., p. 191. f. 300 



(1915). 



Raphidium longissimum Schroed. 



Kofoid 1908, p. 30, as Raphidium longissimum: Mason, Havana 

 Illinois River (Aug., Oct., Dec, Feb.). 



CHLORELLA Beyerinck, 1890 



C. coNDUCTRix Brandt. Smith, Freshw. Alg. U. S., p. 492 (1933). 

 Zoochlorella conductrix Brandt. 



Transeau 1913B, p. 80, as Zoochlorella conductrix: Coles, Charles- 

 ton — pond (Nov.); laboratory culture— in Paramecium bursaria, 

 Stentor polymorphus and Hydra viridis (Jan. 4, 1912, two weeks 

 after collection from pond). 



