CONTENTS 



Agronomy 1-42 



Bibliography, Biography and History 43- 66 



Botanical Education 67- 72 



Forest Botany and Forestry 73-112 



Horticulture 113-148 



Morphology and Taxonomy of Bryophytes 149-162 



Morphology and Taxonomy of Fungi, Lichens, Bacteria and Myxomycetes 163-212 



Pathology 213-263 



Pharmaceutical Botany and Pharmacognosy 264-276 



Soil Science 277-300 



Taxonomy of Vascular Plants 301-467 



Miscellaneous, Unclassified Publications 46S-473 



BOARD OF EDITORS FOR 1920 



AND ASSISTANT EDITORS 

 Editor-in-Chief, Burto.v 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, Mary 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 

 Service, 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. Gourley, 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. Transeau. 

 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. 

 Berry, 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. 



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

 souri Botanical Garden, St. Louis, Missouri. — 

 Assistant Editor, E. B. Pa yson, 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. Wieqand 

 R. Hosmer 



