CLASSIFIED CATALOG OF ILLINOIS ALGAE 141 



Transeau: Clark, Casey^ — pond (May). Johnson & Atwell 1890, 

 p. 20: Cook, Winnetka— (Apr.). 



PLEUROTAENIUM Naegeli, 1849 



P. CORONATUM (Breb.) Rab. West & West, loc. cit., p. 199. pi. 18. f. 4 



(1904). 



Transeau: Coles, Ashmore — pond (June). 



P. EHRENBERGii (Breb.) DeBary. West & West, loc. cit., p. 205. pi. 30 



f. 1 (1904). 



Transeau: Clark, Casey — pond (May). 



P. TRABECULA (Ehr.) Naeg. West & West, loc. cit., p. 209. pi. 30. f. 



11-13 (1904). 

 Docidium trabecula Naeg. 



Transeau: Coles, Ashmore — pond (June, Nov.). Johnson & At- 

 well 1890, p. 20, as Docidium trabecula: Cook — "Big Woods" 

 (Apr.). 



SPONDYLOSIUM Brebisson, 1844 



S. PLANUM (Wolle) W. & G. S. West. West & West, Brit. Desmid. 5: 

 222. pi. 160. f. 23-25 (1923). 



Eddy 1931 B, p. 462: Pulaski, Wetaug— sink-hole pond (Apr.). 

 S. PYGMAEUM (Cooke) W. West. West & West, loc. cit., p. 220. pi. 160. 

 f. 18-19 (1923). 



Daily 1938, p. 80: Cook, Evanston — Lake Michigan. 



STAURASTRUM Meyen, 1829 



S. ALTERNANS Breb. West & West, Brit. Desmid. 4: 126. f. 8-9 (1912). 

 Transeau: Clark, Casey— pond (May). 



S. CRENATUM Bail. Wolle, Desmids U. S., p. 138. f. 5-6 (1892). 

 Transeau: Coles, Ashmore — pond (Nov.). 



S. CUSPIDATUM Breb. West & West, Brit. Desmid. 5: 23. pi. 132. f. 



13-15 (1923). 



Jelliffe 1893, p. 310: Cook, Chicago— Lake Michigan. Eddy 

 1931 B, p. 462: Pulaski, Wetaug— sink-hole pond (Dec). 



S. DILATATUM Ehr. West & West, Brit. Desmid. 4: 172. pi. 126. f. 



10-15 (1912). 



Transeau: Clark, Casey — pond (May). Coles, Ashmore^ — pond 

 (June, Nov.). Johnson & Atwell 1890, p. 20: Cook— "Big Ditch" 

 (Oct.). 



S. GRACILE Ralfs. West & West, Brit. Desmid. 5: 96. pi. 144. f. 3-7 



(1923). 



Galtsoff 1924, pp. 399, 404: Carroll— Mississippi River (July). 

 Transeau: Coles, Charleston- — pond (July). Galtsoff, loc. cit.: 

 Henderson, Jo Daviess- — Mississippi River (Aug., July). Kofoid 

 1908, pp. 60, 61, 319: Mason, Havana— Illinois River (all 



