Volume II 



Number 3 



Annals 



of the 



Missouri Botanical 



Gard 



en 



Contents 



September, 1915 



Crocorum (Pers. ) DC. and R. Solani Kiihn (Corticium 

 5. & C.) with Notes on Other Soecies . . . . B. M. Dus??ar 



403-458 





Some Relations of Plants to Distilled Water and Certain Dilute 



Toxic Solutions M. C. Merrill 459-506 



Electrolytic Determination of Exosmosis from the Roots of Plants 



Subjected to the Action of Various Agents M. C. Merrill 507r572 



£ _ ._ . , 



Monograph of the North and Central American Species of the Genus 



Senecio— Part II J. M. Greenman 573-626 



The Thelephoraceae of North America. IV E. A. Burt 627-658 



PUBLISHED QUARTERLY BY THE BOARD OF TRUSTEES OP THE MISSOURI 



BOTANICAL GARDEN, ST. LOUIS, MISSOURI 





ntered ad -class waiter at the Poet Offic* uis, Misaonri. under the 



Act of Mar<*h 3, IS? 





