INDEX 283 



INDEX TO VOLUME ELEVEN. 



Arthur, J. C. — A Search for Rusts in Colorado 69 



Bennett, Mrs. Cora — List of Colorado Trees 66 



Blumer, J. C. — Some Observations on Arizona Fungi 14 



Distributional features of Some Southwestern Shrubs 117 



Brown, Herbert — The Hashish Plant in Arizona and New Mexico..- 180 



Cannon, W. A. — On the Electric Resistance of Solutions of Salt 



Plants and Solutions of Alkali Soils 10 



Acclimatization of Plants at Del Monte, California 113 



Bower's Origin of a Land Flora 215 



A Redwood Sport 232 



Conard, Henry S. — Acres of Liverworts 64 



East, Edward M. — Suggestions Concerning Certain Bud Variations 77 



Howe, R. Heber — Aspects of New England Lichens 45 



Hoyt, W. D. — Periodicity in the Fruiting of a Marine Alga 102 



Livingston, B. E. — -Evaporation and Plant Habitats 1 



A Method for Controlling Plant Moisture 39 



The Botanical Garden of Florence 86 



Evaporation and Centers of Plant Distribution 106 



The Experimental Morphology of Plants 151 



The Botanical Garden at Pisa 156 



A New Method for Culture of Algae and Mosses 183 



Lloyd, Francis E. — A Perennial Dodder 40 



A Water-storage Organ in Cuscuta 67 



Stomata as Regulators of Transpiration 131 



Extra-floral Nectaries in Cacti 138 



Some Seedlings of the Desert 154 



Some Features of the Anatomy of Guayule 172 



Methods of Vegetative Reproduction in Guayule and 



Mariola 201 



McCallum, W. B.— Steven's Introduction to Botany 20 



The Flowering Stalk of the Century Plant 141 



iVIacDougal, D. T. — Problems of the Desert 28 



First Crosses Breeding True 42 



The Poisonous Action of Loco-weed and Ladies' Slipper 85 



Across Papagueria 93, 123 



The Course of the Vegetative Seasons in Southern 



Arizona 189, 217, 237, 261 



50071 



