CONTENTS 



Agronomy 879- 903 



Bibliography, Biography and History 904- 964 



Botanical Education 965- 975 



Cytology 976-1010 



Forest Botany and Forestry 1011-1048 



Genetics • • • • 1049-1145 



Horticulture 1146-1179 



Morphology, Anatomy and Histology of Vascular Plants 1180-1188 



Morphology and Taxonomy of Algae 1189-1204 



Morphology and Taxonomy of Bryophytes 1205-1212 



Morphology and Taxonomy of Fungi, Lichens, Bacteria, and Myxomycetes 1213-1232 



Paleobotany and Evolutionary History 1233-1255 



Pathology 1256-1295 



Pharmaceutical Botany and Pharmacognosy ." 1296-1305 



Physiology 1306-1364 



Soil Science. 1365-1392 



Miscellaneous, Unclassified Publications 1393-1397 



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, 

 DC. 



Bibliography, Biography and History. Lincoln W. 

 Riddle, "Harvard University, Cambridge, Massa- 

 ohusptts. 



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 Botanv 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. 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. Transeac, 

 Ohio State University, Columbus, Ohio. 



Morphology ana Taxonomy of Bryophytes. A lexandeb 

 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. 



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

 souri Botanical Garden, St. Louis, Missouri. — 

 Assistant Editor, E. B. Payson, 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. Eameb D. Reddick 



R. A. Emerson L. W. Sharp 



H. M. Fitzpatrick K. M. Wiegand 

 R. Hosmer 



