LIST OF AUTHORS 



Allen, L. M. See Sampson, A. W. and Allen, 

 L. M. 



Bergman, H. F. and Stallard, Harvey. The de- 

 velopment of Climax Formations in 

 Northern Minnesota 333 



Bergman, H. F. Comments on Malva rotnndi- 



folia L. and its allies 437 



Butters, Frederic K. The seeds and seedling- of 



Caulophyllum thalictroides 11 



Butters, Frederic K. and Rosendahl, C. Otto. 

 Some effects of severe frost upon vegeta- 

 tion in a condition of active growth 1,^3 



Butters, Frederic K. Notes on the species of 

 Liagora and Galaxaura of the Central 

 Pacific 161 



Butters, Frederic K. Some peculiar cases of 

 plant distribution in the Selkirk Moun- 

 tains, British Columbia 313 



Butters, Frederic K. See Rosendahl, C. O. and 

 Butters, F. K. 



Clements, Frederic E. and Shantz, H. Le Roy. 



A new genus of bluegreen Algae 133 



Clements, Frederic E. Nova fungorum colo- 



radensium genera 185 



Folsom, Donald. Studies in the Morphology of 



Yucca glauca 427 



Hone, Daisy S. Two Basidiomycetes new to 

 Minnesota : Exobasidium mycetophilum 

 and Cantharellus retirugus 61 



Hone, Daisy S. The Pezizales. Phacidiales, 



and Tuberales of Minnesota 65 



HufF, N. L. Response of micro-organisms to 



copper sulphate treatment 407 



Pool, Raymond J. A study of the vegetation of 



the sandhills of Nebraska 189 



•Rosendahl, C. Otto. Embryo-sac development 

 and embryology of Symplocarpus foe- 

 tidus 1 



Rosendahl, C. Otto. Observations on the mor- 

 phology of the underground stems of 

 Symplocarpus and Lisichiton, together 

 with some notes on geographical distri- 

 bution and relationship 137 



Rosendahl, C. Otto. See Butters, Frederic K. 

 and Rosendahl, C. Otto. 



VI 



