406 MINNESOTA BOTANICAL STUDIES. 



1392. Wittrock. Y. B. Oedogoneae Americanae hucusque 

 cognitae. Bot. Notiser. 133. 1878.— (Hedwigia. 17:178-181. 

 D1878.) 



1393. . Om snoens och isens flora, sarskildt i de 



arktiska trakterna. A, E. Nordenskioeld's "Studier och 

 forskningar, foeranledda af mina resor i hoega Norden." 1883. 

 Bot. Gesell. 7Mrl883.— (Bot. Centralb. 14:158, 159. 1883.) 

 — (Am. Mo. Mic. Jour. 5:139. J11884.)— (Nature. 30:638-640. 

 3001884.) 



1394. Wolle, F. Fresh- water Algae. Bull. Torr. Bot. 

 Club. 6:121-123. N1876. Part II. 6: 137-141. Mrl877. Part 

 III. 6:181-189. N1877. Part IV. 7:43-48. Apl880. Part V. 

 8:37. 1881. Part VI. 9:25-30. pi. 13. Mrl882. Part VII. 

 10:13-21. p^. ^7. F1883. Part VIII. \l:12>-\7. pi. U. F1884. 

 Part IX. 12:1-6. pi. J^7. Jal885. Part X. 12:125-129. pi. 51. 

 D1885. 



First paper : Thirty species believed to be new to the United States 

 and 10 new to science. Collected mostly within twenty miles of 

 Bethlehem, Pennsylvania. Second paper: Addition of 100 species 

 to the United States lists. Third paper: Notes 150 forms new to 

 the United States and 24 new species. Fourth paper: Lists 90 new 

 to the United States and 18 new to science. Fifth paper : 81 

 species new to United States, of which 4 are new to science. Sixth 

 paper; 70 species enumerated as being new to United States, 15 

 new species and varieties. Seventh paper: 77 species and varieties 

 new to United States, of which 31 are entirely new. Eighth paper: 

 38 species and varieties new to North America, of which 20 are new. 

 Ninth paper: Nearly 50 species and varieties new to the flora of the 

 United States, 15 entirely new. Tenth paper: 26 new species and 

 varieties new to United States of which 14 are new to science. 



1395. . A Nostoc the Matrix of Scytonema. Bull. 



Torr. Bot. Club. 6:217, 218. 1 pi. Apl878. 



1396. . Fresh-water Algae. Bot. Gaz. 3:68-70. 



Agl878. 



1397. . Fresh -water Algae. Synopsis of Discoveries 



and Researches in 1878. Bull. Torr. Bot. Club 6:281-288. 

 JaF1879. 



About 125 species new to the United States listed. 



1398. . Dubious Character of some of the Genera of 



Fresh-water Algae. Am. Quart. Mic. Jour. 1 : 205-208. pi. 18. 

 (24F.) Apl879.— (Brebissonia. 1:185-188. 30Jel879.) 



1399. . Fallacious Appearances among the Fresh- 

 water Algae. Am. Mo, Mic. Jour. 1:21, 22. /. 9. F1880.— (Bot. 

 Centralb. 6:37. 1881.) 



