598 MINNESOTA BOTANICAL STUDIES. 



207. Stigeoclonium amoenum Kg. Spec. Alg. 355. 1849. 



Lake of the Woods. July 20, 1894. Coll. Conway 

 MacMillan. 



208. Microspore vulgaris Rabenh. Krypt. Plor. v. Sachs. 



245. 1863. 

 In spring, J. H. R. Works, Red Wing. April 1, 1895. 

 Coll. ,4. A. Butler 



209 Cladophora callicoma Ag. Phyc. Gener. 257. 1843. 



On stones, Mississippi river, Winona. September 15, 

 1894. Coll. J. M. Holzinger. 



210. Rhaphidium brauiiii Naeg. in Kg. Spec. Alg. 891. 1849. 



Bethania Springs, Osceola, Wis. August 31, 1895. 



211. Apiocystis brauniana Naeg. in Kg. Spec. Alg. 208. 1849. 



On sides of zinc sorghum tub containing rainwater, 

 Long lake, Hennepin county. September 3, 1895. 

 Coll. B. T. Shaver and J". E. T. 



212. Protocqccus riridis Ag. Syst. Alg. 13. 1824. 



On tree trunk five feet from ground, on bank of Mis- 

 sissippi river, Minneapolis. September 17, 1895. 



213. Mougeotia geimflexa (Dillw.) Ag. Syst, Alg. 83. 1824 



St. Peter. October 4, 1895. Coll. Henry Tilden. 



214. Zygnema stellmnm (Vauch.) Ag. Syst. Alg. 77. 1824. 



State fish hatcheries, St. Paul. August 15, 1895. 



215. Spirogyra porticalis (Muell.) Cleve. Svensk. 22.^- 5. 



1868. 

 R. R. "L 197," Red Wing. April 1. 1895. Coll. A. A. 

 Butler. 



216 Spirogyra jugalis (Dillw.) Kg. Spec. Alg. 442. 1849. 

 In pond, Zumbrota. July, 1895. Coll. O. A. Ballard. 



217. Spirogyra majuscula Kg. Spec. Alg. 441. 1849. 



Long lake. September 5, 1895. Coll. B. T. Shaver 

 and J. E. T. 



218. Spirogyra calospora Cleve. Svensk. Zygnem. 26. pi. S. f. 



1-5. 1868. 

 Red Wing. June 8, 1895. Coll. A. A. Butler. 



219. Desmidiuin swartzii Ag. Syst. Alg. 9. 1824. 



Pond, St. Peter. October 4, 1895. Coll. Henry Tilden. 



