Volume II 



umbers 1 and 2 





nnals 



of the 



Missouri Botanical 



Garden 



Anniversary Proceedings 



Contents 



February-April, 1915 



The Twenty-fifth Anniversary Celebration 1-32 



The Vegetation of Mona Island N. L. Britton 33- 58 



The Flora of Norway and its Immigration. . N. Wille 59-108 



The Phylogenetic Taxonomy of Flowering Plants C. E. Bessey 109-164 



The Botanical Garden of Oaxaca C. Conzatti 165-174 



The Origin of Monocotyledony J. M. Coulter 175-183 



The History and Functions of Botanic Gardens '. . A. W. Hill 185-240 



Recent Investigations on the Protoplasm of Plant Cells and its 



Colloidal Properties F. Czapek 241-252 



The Experimental Modification of Germ-Plasm .. D. T. MacDougal 253-274 

 The Relations between Scientific Botany and Phytopathology 



O. Appel ... 275-285 



The Law of Temperature Connected with the Distribution of 



the Marine Algae W A. Setchell 287-305 



Phytopathology in the Tropics Johanna Westerdijk 307-313 



Phj'logeny and Relationships in the Ascomycetes. . .G. F. Atkinson 315-376 



A Conspectus of Bacterial Diseases of Plants E. F. Smith 377-401 



PUBLISHED QUARTERLY BY THE BOARD OF TRUSTEES OF THE MISSOURI 



BOTANICAL GARDEN, ST. LOUIS, MISSOURI 



red a* gecond-rlflRH matter at tb* Post Office at I I on\% Misaonri, tinder the 



Art of March 3, 1875*. 



