XX. LIST OF FEESH-WATER ALGAE COLLECTED 

 IN MINNESOTA DURING 1894 



Josephine E. Tilden. 



The accompanying list is a continuation of the one published 

 in Minnesota Botanical Studies, Part I, p. 25, 1894. It 

 includes all new species collected during the intervening year 

 and those of the former list found in new localities. All gather- 

 ings were made within a radius of seventy miles of Minneapo- 

 lis. The nomenclature for the most part is based upon the 

 Sylloge Algarum of DeToni, the Monographie des Oscillarides of 

 Gomont and the Essai de Classification des Nostochin^es of 

 Thuret. 



OEDOGONIACEAE (De By.) Wittr. Pr. Mon. Oedog. 6. 

 1874. 



90. Oedogoniuni huiitii Wood, Freshw. Alg. U. S. J97. 



1862. 

 Bush lake, Eden Prairie, Hennepin county. July 13, 

 1894. 



91. Oedogonium franklinianum Wittr. in Wittr. et 



Nordst. Alg. Aq. Dulc. Exsicc. n. 309. 1880. 

 Minneapolis. August 7, 1894. Coll. A. P. Anderson. 



92. Oeclogoniuniobtruncatuni Wittr. var. oblatum Tild. 



Am. Alg. no. 3. 1894. 

 In tanks in greenhouse, Minneapolis. November 23, 

 1894. 



93. Oedogoiiiiim priaceps (Hass. ) Wittr. Prodr. Monogr. 



Oedog. 42. 1874. 

 Purgatory creek, Eden Prairie, Hennepin county. 

 July 9, 1894. 



SPHAEROPLEACEAE (Kg.) Cohn in Monat. Koen. Akad. 

 Wiss. in Berl. 335. 1855. 



