CONTENTS 



Entry nos. 



Agronomy 1086-1233 



Bibliography, Biography and History 1234-1259 



Botanical Education 1260-1264 



Cytology 1265-1269 



Forest Botany and Forestry 1270-1418 



Genetics 1419-1702 



Horticulture 1703-1877 



Morphology, Anatomy and Histology of Vascular Plants 1878-1914 



Morphology and Taxonomy of Bryophytes 1915-1924 



Morphology and Taxonomy of Fungi, Lichens, Bacteria and Myxomycetes 1925-1977 



Paleobotany and Evolutionary History 1978-2000 



Pathology 2001-2122 



Pharmaceutical Botany and Pharmacognosy ■. . 2123-2135 



Physiology 2136-2256 



Soil Science 2257-2335 



Taxonomy of Vascular Plants 2336-2402 



Miscellaneous, Unclassified Publications 2403-2426 



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, 



n 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. Cowlf.s, 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, New Hampshire Agri- 

 cultural College, Durham, New Hampshire. 



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. Alexandeb 

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



Morpholcgy 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 Ed itor,. 



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 19-0 



J. R. Schramm, Cliairman. 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 



