Geological and Natural History Survey of Mi 

 Conway MacMillan, State Botanist 



Minnesota 

 Botanical Studies 



XII. 



XIII. 

 XIV. 



XV. 



XVI. 



XVII. 



XVIII. 



XIX. 



XX. 



XXI. 



XXII. 



Contents 



The moss flora of the upper Minnesota river, John M. 



Holzinger 109 



Two new species of Font ina lis, Jules Car dot - - - 1 29 



Outline of the history of leguminous root nodules and 

 rhizobia with titles of literature concerning the fixa- 

 tion of free nitrogen by plants, III., Albert Schneider. 133 



Report on two collections of Hepaticae from northeastern 

 Minnesota, Alexander W. Evans- - - - - - - 141 



Observations on the tide pool vegetation of Port Renfrew, 



S. A. Skinner - 145 



Observations on Alaria nana sp. nov., Herman F. 



Schrader 157 



Contributions to a knowledge of the lichens of Minne- 

 sota. — VII. Lichens of the northern boundary, 

 Bruce Fink - - -----167 



The Umbellales of Minnesota, W. A. Wheeler - - - 237 



The Pteridophytes of Minnesota, Harold L. Lyon - - 245 



An addition to the knowledge of the flora of south- 

 eastern Minnesota,. C. O. Rosendahl 257 



A new species of Razoumofskya, C. O. Rosendahl - - 271 



Third Series 



Part II - - July J, 1903 



MINNEAPOLIS, MINN. 

 1903 



