The 



Plant World 



j\ Mag'azine of General Botany 



VOLUME 12 

 NUMBER 11 

 NOV. 190 9 



Containing 



Botanical Aspects of Stanford University 



By George J. Peirce 245 



A Double Flowered Sarracenia 



By W. C. Coker 253 



Suggestions for Lichen Studies 



By Albert W. C. T. Herre 255 



Parasitism of Orthocarpus purpurascens 



By W. A. Cannon 259 



Books and Current Literature 2 62 



Notes and Comment 267 



Tucson, Arizona 



Entered as Second Class Matter, Dec. 17, 1907, at the Post-Office, Tucson, 

 Arieona, under the Act of Congress of March 3, 1879 



