Volume 44 



July 1944 



NE 

 Number 2 B0 



TORREYA 



EDITED FOR 



THE TORREY BOTANICAL CLUB 



BY 



HAROLD H. CLUM 



CONTENTS 



Western Hemisphere Natural Rubber W. Gordon Whaley 17 



Three New Saprophytic Chytrids Anne M. Hanson 30 



Cuscuta japonica Choisy, an Asiatic Species New to America T. G. Yuncker 34 



Reviews 



The Vegetation and Floristics of Bull Run Mountain, Virginia S. F. Blake 36 



Field Trips of the Club 37 



Proceedings of -the Club 39 



Published for the Club 



By the Free Pkess Printing Company 

 187 College Street, Burlington, Vermont 



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

 October 14, 1939, tinder the Act of March 3, 1879 



