Volume 41 



September-October, 1941 



Number 5 



TORREYA 



A Bi-MoNTiiLY Journal of Botanical Notes and News 



EDITED FOR 



THE TORREY BOTANICAL CLUB 



BY 



WILLIAM J. BONISTEEL 



CONTENTS 



The Great Swamp Kenneth E. Wright 145 



Names of American Plants in Books on Kalm's Travels W. L. McAtee.151 



Local Flora Notes John W. Thomson, Jr. 160 



The Variations of Sagittaria subulata Robert T. Clausen 161 



Chile Tarweed East of the Mississippi Harold N. Moldenke 162 



Weed Records for the Great Basin Bassett Maguire 164 



Some Effects of Cold on Plants in Alabama in 1940 Roland M. Harper 166 



Book Reviews 



Conservation of Renewable Natural Resources W. H. Camp 170 



The Material Basis of Evolution R. C. Benedict 173 



Field Trips of the Club 175 



News Notes 178 



Published for the Club 



By the Free Press Printing Company 

 187 College Street. Burlington, Vermont 



Entered as second class matter at the post office at Burlington, Vermont, 

 October 14, 1939. under the Act of March 3, 1879 



