32 A CATALOG OF ILLINOIS ALGAE 



O. MAjus Naeg. Pascher, loc. ciL, p. 76. f. 58, 59 (1925). 

 Transeau: Coles, Charleston — pond (May). 



O. PARVULUM (Perty) A. Br. Tiffany, Contrib. Franz T. Stone Lab. 6: 



35. pi. 14. f. 344 (1:34). 



Transeau 1913B, p. 73: Clark, Casey — pond (Oct., Nov.). Coles, 

 Charleston — ponds and pools (Apr., May). Britton 1940, p. 71: 

 Cook, Evanston — E. Fork of N. Branch of the Chicago River at 

 Golf Road, Apr. 23, 1939, #232; Glenview — swamps and inter- 

 mittent ponds about 1^ miles W., May 12, June 23, 1938, Apr. 7, 

 1939, #53, 55-57, 97; Morton Grove — small pond about 1 mile 

 N.W., May 10, 1938, #43; Northbrook — small ponds and swamps 

 on Techny Road just east and west of Landwehr Road, May 12, 

 1938, #62, 63, swamp and pond about 3 miles S.W., May 12, 

 1938, #64, small ponds and swamps in Somme Forest Preserve, 

 May 15, June 27, 1938, May 8, 1939, #66, 112, 240, 241, 243, 248. 

 Britton: Lake, Waukegan — in Dead River at Dunes Park, May 

 11, 1939, #255-257; Highwood— small pond. May 15, 1938, #73. 



Order: HETEROTRICHALES 



Family: TRIBONEMATACEAE 



TRIBONEMA Derbes & Solier, 1856 



T. BOMBYCiNUM (Ag.) Derb. & Sol. Hazen, Mem. Torr. Bot. Club 



11: 184. pi. 25, f. 1-3 (1902) 

 Conferva homhycina Ag. 



Transeau 1913B, p. 73; 1916, p. 124, as Conferva homhycina 

 (Champaign, Clark, Coles, Cumberland, Jasper, Lawrence, 

 Montgomery). Solheim & Penfound 1928, p. 88 (Champaign). 

 Britton 1940, p. 71, as T. viride Pascher (Cook). Britton (Kan- 

 kakee, Will). 



Champaign, Urbana — pond and small stream (Mar., Apr.). 

 Clark, Casey— pools, ditches, small ponds and streams (Apr., 

 May). Coles, Ashmore^ — pond and small stream (Apr., May); 

 Charleston^ — ponds, pools, ditches, swamps, draintiles, and small 

 streams (all months); Humboldt — ditch (Apr.); Lerna — pond 

 and stream (May); Mattoon — swamp (Apr.). Cook, Glenview— 

 small pond and swamp about \\ miles W., Apr. 7, 1939, #228; 

 Morton Grove — small pond about 1 mile N.W., May 10, 1938, 

 #43; Niles- — shallow intermittent pond on Dempster St. at Mil- 

 waukee Ave., Apr. 2, 1938, #1. Cumberland, Greenup — pond and 

 ditches (May, July, Nov.). Jasper, Rose Hill — small stream 

 (Apr.). Kankakee, Kankakee — in slough along Route 49A about 

 5 miles N., Apr. 18, 1938, #5. Lawrence, Pinkstaff — stream 3^ 



