Pieters A. J. — Seed Distribution by the United States Department 



of Agriculture 292 



Reed, Howard S. — -An Interesting Marasimus Fairy Ring 12 



Two Species of the Genus Calostoraa 246 



Shreve, Forrest — -The Coastal Deserts of Jamaica 129 



— ■ — ■ — — — — — The Rate of Establishment of the Giant Cactus. . . . 235 



Both, Blanche— The Arctic- Alpine Flora of Pike's Peak 105 



Spalding, V. M. — Plant Associations of the Desert Laboratory 



Domain 31, 56, 86 



Spring, John A. — Calochortus Venustus 266 



Vinson, A. E. — The Chemical Organization of a Typical Fruit 19 



Waldron, L. R. — -Heredity in Populations and in Pure Lines I 



Walker, Elda R. — -Conditions Influencng the Growth of Usnea 



longissima , 1 73 



Wolf, F. A. — Parasitic and Saprophytic Fungi in Orchards 164,190 



Formation of Adventitious Roots by the Hackberry. . . 174 



Notes and Comment 22, 50, 76, 102, 127, 150, 178, 232, 256, 280, 305 



Books and Current Literature. . .44, 73, 99, 1 19, 148, 175, 202, 252, 275, 301 



