30 A CATALOG OF ILLINOIS ALGAE 



GLOEOTRICHIA Agardh, 1842 



G. NATANS Rab. ex B. & F. Geitler, loc. cit., p. 639. f. 406, 407 (1932). 

 Rivularia natans (Hedw.) Welw. ex B. & F. 



Transeau 1913B, p. 72; 1913C, p. 34; 1916, p. 124, as Rivularia 

 natans: Coles, Charleston — ponds (May-Dec.)- Britton: Cook, 

 Palos Park— small pond at Palos Golf Club, Sept. 8, 1939, #1005 

 {fide Dr. F. Drouet). Transeau: Jasper, Newton — pond (Aug.). 



G. Visum Thuret ex B. & F. Geitler, loc. cit., p. 632. f. 401 (1932). 

 Harper, Field Mus. : Adams, Payson — from the herbarium of 

 Edward T. and Susan A. Harper, coll. Sept. 3, 1893. Britton: 

 Lake, Antioch— in Channel Lake, Sept. 14, 1939, #1037 {fide 

 Dr. F. Drouet). 



RAPHIDIOPSIS Fritsch, 1929 



R. CURVATA Fritsch. Geitler, loc. cit., p. 658. f. 420 (1932). 



Britton; Drouet, Field Mus.: Cook, Chicago — lagoon in Jackson 

 Park, coll. by J. M. Beal, Aug. 12, 1939; Sag Bridge— small pond, 

 Sept. 8, 1939, #1015 {fide Dr. F. Drouet). 



Phylum: RHODOPHYTA 



Class: RHODOPHYCEAE 



Order: NEMALIONALES 



Family: BATRACHOSPERMACEAE 



BATRACHOSPERMUM Roth, 1797 



B. BORYANUM Sirod. Pascher & Schiller in Pascher, Suesswass.-fl. 

 Deutsch. 11: 186 f. 46-48 (1925). 



Transeau 1913B, p. 89: Coles, Ashmore — Polecat Creek; 



Charleston — small stream (Mar., May). 



Family: THOREACEAE 



THOREA Bory, 1808 



T. RAMOSissiMA Bory. Pascher & Schiller, loc. cit., p. 165. f. 88-90 

 (1925). 



Hedgecock & Hunter 1899, p. 425: Sangamon River. 



Phylum: CHRYSOPHYTA 



Class: XANTHOPHYCEAE 



Order: HETEROCOCCALES 



Family: BOTRYOCOCCACEAE 



