CONTENTS 



Agronomy 1-62 



Bibliography, Biography and History 63-93 



Botanical Education 94-116 



Ecology and Plant Geography p. 16 



Forest Botany and Forestry 117-214 



Genetics 215-280 



Horticulture 281-330 



Morphology and Taxonomy of Algse p. 52 



Morphology, Anatomy and Histology of Vascular Plants 331-343 



Morphology and Taxonomy of Bryophytes 344-347 



Morphology and Taxonomy of Fungi, Lichens, Bacteria and Myxomycetes 348-373 



Paleobotanj' and Evolutionary History 374-388 



Pathology 389-453 



Pharmaceutical Botany and Pharmacognosy 454-467 



Physiology 468-531 



Soil Science 532-558 



Taxonomy of Vacular Plants p. 86 



Micellaneous, Unclassified Publications 559-576 



BOARD OF EDITORS FOR 1921 

 AND ASSISTANT EDITORS 



Editor-in-Chief, J. R. SCHRAMM 

 Cornell University, Ithaca, New York 



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. Neil E. Stevens, 

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



Botanical Education. C. Stuart Gager, Brooklyn 

 Botanic Garden, Brooklyn, New York. — Assistant 

 Editor, .\i,FRED GuNDERSEN, Brooklyn Botanic 

 Garden, Brooklyn, New York. 



Cytology. Gilbert M. Smith, University of Wisconsin 

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

 Bbtan, University of Wisconsin, Madison, Wisconsin 



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

 University of Chicago, Chicago, Illinois. — Assistant 

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

 Chicago, Illinois. 



Forest Botanyand Forestry. Raphael Zon, U. S. Forest 

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

 HoFMANN, U. S. Fqrest Service, Wind River Ex- 

 periment Station, Stabler, Washington. 



Genetics. Gkokqe H. .Shull, Princeton University, 

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

 KiLLT, Pennsylvania State College, State College, 

 Pennsylvania. 



Hortiftulture .)._ H. Gourlet, Ohio Agricultural Ex- 

 periment Station, Wooster, Ohio. — Assistant Editor, 

 H. E. Knowlton, West Virginia University, Morgan- 

 town. West Virginia. 



Miscellnneous, Unclassified Publications. Burton E. 

 Livingston, The Johns Hopkins University, Balti- 

 more, Maryland. — Assistant Editor, Saji F. Tre- 

 LEA8E, The Johns Hopkins University, Baltimore, 

 Maryland. 



Morphology, Anatomy and Histology of Vascular Plants 

 E. W. SiNNOTT, Connecticut Agricultural College 

 Storrs, Connecticut. 



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

 Ohio State University, Columbus, Ohio. 



Morphology and Taxonomy of Bryophytes. Alexandkb 

 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. 

 Bekrt, 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. Hebeb W. 

 YouNGKEN, Philadelphia College of Pharmacy and 

 Science, Philadelphia, Pennsylvania. —Assistant Editor, 



E. N. Gathercoal, 701 South Wood St., Chicago, 

 Illinois. 



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

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

 DoDOE, Harvard University, Cambridge, Massachu- 

 setts. 



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, Univeraity of 

 Wyoming, Laiamie, Wyoming. 



BIBLIOGRAPHY COMMITTEE FOR 1921 



J. R. Schramm, Chairman, Cornell Uui't ersity, Ithaca, New York 



H. O BuCKMAN 



W. H. Chandler 

 A.J. Eames 

 R. a. Emerson 

 H. M. FrrzPATRiCK 



II. HOSMER 



L. Knudson 

 D. Redoick 

 L. W. Sharp 

 K. M. Wieqand 



R. S. IlARlfts, Hecretarij 



