CONTENTS 



Agronomy 474-493 



Botanical Education 494-510 



Forest Botany and Forestry 511-644 



Genetics 645-751 



Morphology, Anatomy and Histology of Vascular Plants 752-772 



Morphology and Taxonomy of Fungi, Lichens, Bacteria and Myxomycetes 773-791 



Paleobotany and Evolutionary History 792-802 



Pharmaceutical Botany and Pharmacognosy 803-827 



Physiology 828-878 



BOARD OF EDITORS FOR 1920 

 AND ASSISTANT EDITORS 



Editor-in-Chief, Burton E. Livingston 



The Johns Hopkins University, Baltimore 



Associate, Lon A. Hawkins 



U. S. Bureau of Plant Industry, Washington, D. C. 



EDITORS FOR SECTIONS 



Agronomy. C. V. Piper, U. S. Bureau of Plant Indus- 

 try, Washington, D. C. — Assistant Editor, Mart R. 

 Burr, U. S. Bureau of Plant Industry, Washington, 

 D.C. 



Bibliography, Biography and History. Lincoln W. 

 Riddle, Harvard University, Cambridge, Massa- 

 chusetts. 



Botanical Education. C. Stuart Gager, Brooklyn 

 Botanic Garden, Brooklyn, New York. — Assistant 

 Editor, Alfred Gundersen, Brooklyn Botanic 

 Garden, Brooklyn, New York. 



Cytology. Gilbert M. Smith, University of Wisconsin, 

 Madison, Wisconsin. — Assistant Editor, Geo. S. 

 Bryan, University of Wisconsin, Madison, Wisconsin. 



Ecology and Plant Geography. H. C. Cowles, The 

 University of Chicago, Chicago, Illinois. — Assistant 

 Editor, Geo. D. Fuller, The University of Chicago, 

 Chicago, Illinois. 



Forest Botany and Forestry. Raphael Zon, U. S. Forest 

 Sendee, Washington, D. C. — Assistant Editor, J. V. 

 Hofmann, U. S. Forest Service, Wind River Ex- 

 periment Station, Stabler, Washington. 



Genetics. George H. Shull, Princeton University, 

 Princeton, New Jersey. — Assistant Editor, J. P. Kelly, 

 Pennsylvania State College, State College, Penn- 

 sylvania. 



Horticulture. J. H. Gourlet, West Virginia Univer- 

 sity, Morgantown, West Virginia. 



Miscellaneous, Unclassified Publications. Burton E. 

 Livingston, The Johns Hopkins University, Balti- 

 more, Maryland. 



Morphology, Anatomy and Histology of Vascular Plants. 

 E. W. Sinnott, Connecticut Agricultural College, 

 Storrs, Connecticut. 



Morphology and Taxonomy of Algae. E. N. Tban3ead, 

 Ohio State University, Columbus, Ohio. 



Morphology ana Taxonomy of Bryophytes. Alexander 

 W. Evans, Yale University, New Haven, Connecticut. 



Morphology and Taxonomy of Fungi, Lichens, Bacteria 

 and Myxomycetes. H. M. Fitzpatrick, Cornell 

 University, Ithaca, New York.^ 



Paleobotany and Evolutionary History. Edward W. 

 Berrt, The Johns Hopkins University, Baltimore, 

 Maryland. 



Pathology. G. H. Coons, Michigan Agricultural Col- 

 lege, East Lansing, Michigan. — Assistant Editor, C. W. 

 Bennett, Michigan Agricultural College, East Lans- 

 ing, Michigan. 



Pharmaceutical Botany and Pharmacognosy. Heber W. 

 Youngken, Philadelphia College of Pharmacy and 

 Science, Philadelphia.Pennsylvania.— Assistant Editor, 



E. N. Gathercoal, University of Illinois, Urbana, 

 Illinois. 



Physiology. B. M. Duggar, Missouri Botanical Garden, 

 St. Louis, Missouri. — Assistant Editor, Carroll W. 

 Dodge, Brown University, Providence, Rhode Island. 



Soil Science. J. J. Skinner, U. S. Bureau of Plant 

 Industry, Washington, D. C. — Assistant Editor, 



F. M. Schertz, U. S. Bureau of Plant Industry, Wash- 

 ington, D. C. 



Taxonomy of Vascular Plants. J. M. Greenman, Mis- 

 souri Botanical Garden, St. Louis, Missouri. — 

 Assistant Editor, E. B. Patson, Missouri Botanical 

 Garden, St. Louis, Missouri. 



BIBLIOGRAPHY COMMITTEE FOR 1920 



J. R. Schramm, Chairman, Cornell University, Ithaca, New York 



H. O Buckman L. Knudson 



W. H. Chandler E. G. Montgomery 



A.J. Eames D. Reddick 



R. A. Emerson L. W. Sharp 



H. M. Fitzpatrick K. M.Wiegand 

 R. Hosmer 



