,:i;.iliisHiill!![>""•ssmWMiiiiiiBotanicalAbstractsabstractsmonthly serial furnishing and citations of publications in the internationalAfield of botany in its broadest sense.VOLUME VIIFEBRUARY, 1921-APRIL, 1921PUBLISHED MONTHLY UNDER THE DIRECTION OFTHE BOARD OF CONTROL OF BOTANICAL ABSTRACTS, INC.democratically constituted organization,A with members representing many societiesininterested plants.BALTIMORE, U. S. A.WILLIAMS & WILKINS COMPANY1921)(6nsLtCopyright, 1921Williams & Wilkins CompanyBaltimore, U. S. A.THE SOCIETIES NOW REPRESENTEDANDTHE MEMBERS OF THE BOARD OF CONTROLMembers the Executive Committee for 1921 are indicated by asterisks){Tht ofAdvancement Paleontological Society America.American Association for tlie ofof Science, Section G. Arthur Hollick, 61 Wall Street, NewColumbia University, Brighton, York.R. A. Harper, NewE. W. Berry, Johns Hopkins University,New York City.Jolins Hopkins Uni- Baltimore, Maryland.B. E. Livingston,Baltimore, Maryland.versity,American Society of Agronomy.Society of America, GeneralBotanicalC. B. Hutchinson, Cornell University,Section.Ithaca, New York.Gleason, New York BotanicalH. A. C. A. Mooers, University of Tennessee,Garden, New York City.Knoxville, Tennessee.*B. M. Davis, University of Michigan,Ann Arbor, Michigan. Society for Horticultural Science.Physiologi- Gardner, University of Missouri,Botanical Society of America, V. R.cal Section. Columbia, Missouri. of Wisconsin,E. J ...
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abstractsmonthly serial furnishing and citations of publications in the internationalA
field of botany in its broadest sense.
VOLUME VII
FEBRUARY, 1921-APRIL, 1921
PUBLISHED MONTHLY UNDER THE DIRECTION OF
THE BOARD OF CONTROL OF BOTANICAL ABSTRACTS, INC.
democratically constituted organization,A with members representing many societies
ininterested plants.
BALTIMORE, U. S. A.
WILLIAMS & WILKINS COMPANY
1921)(6
nsLt
Copyright, 1921
Williams & Wilkins Company
Baltimore, U. S. A.THE SOCIETIES NOW REPRESENTED
AND
THE MEMBERS OF THE BOARD OF CONTROL
Members the Executive Committee for 1921 are indicated by asterisks){Tht of
Advancement Paleontological Society America.American Association for tlie of
of Science, Section G. Arthur Hollick, 61 Wall Street, New
Columbia University, Brighton, York.R. A. Harper, New
E. W. Berry, Johns Hopkins University,New York City.
Jolins Hopkins Uni- Baltimore, Maryland.B. E. Livingston,
Baltimore, Maryland.versity,
American Society of Agronomy.
Society of America, GeneralBotanical
C. B. Hutchinson, Cornell University,
Section.
Ithaca, New York.
Gleason, New York BotanicalH. A. C. A. Mooers, University of Tennessee,
Garden, New York City.
Knoxville, Tennessee.
*B. M. Davis, University of Michigan,
Ann Arbor, Michigan. Society for Horticultural Science.
Physiologi- Gardner, University of Missouri,Botanical Society of America, V. R.
cal Section. Columbia, Missouri. of Wisconsin,E. J. Kraus,University,Otis F. Curtis, Cornell
Madison, W^isconsin.Ithaca, New York.
the Board),*B. M. Duggar (Chairman of American Phytopathological Society.
Louis,Missouri Botanical Garden, St.
L. R. Jones, University of Wisconsin,
Missouri.
Madison, W^isconsin.
of America, SystematicBotanical Society *DoNALD Reddick, Cornell University,
Section. Ithaca, New York.
Marshall A. Howe, New York Botani-
Society of American Foresters.cal Garden, New York City.
H. Barnhart, New York Botanical Forest Service, Wash-J. Raphael Zon, U. S.
Garden, New York City. ington, D. C.
Pennsylvania DepartmentJ. S. Illick,Botanical Society of America, Mycological
Harrisburg, Pennsylvania.of Forestry,Section.
C. H. Kauffman, University of Michi- Conference of PharmaceuticalAmerican
gan, Ann Arbor, Michigan. Faculties.
Bruce Fink, Miami University, Oxford, Col-W. Youngken, PhiladelphiaHeber
Ohio.
lege of Pharmacy and Science, Phila-
American Society of Naturalists. delphia, Pennsylvania.
Michigan, Henry Kraemer.H. H. Bartlett, University of
Ann Arbor, Michigan.
Agricultur-Canadian Society of Technical
Experimental*J. A. Harris, Station for
ists.
Harbor, L. I.,Evolution, Cold Spring
of Sas-W. P. Thompson, UniversityNew York.
Saskatchewan.katchewan, Saskatoon,
of America.Ecological Society
College,B. T. Dickson, Macdonald
L. Shantz, Bureau of PlantH. U. S. Macdonald College, Quebec.
Washington, D. C.Industry,
Canada.Royal Society of*Forrest Shreve, Desert Laboratory,
Carnegie Institution, Tucson, Arizona. No elections.
At large.
Washington, D. COrton, U. S. Bureau of Plant Industry,W. A.
111——— ——
BOARD OF EDITORS AND ASSISTANT EDITORS
FOR VOLUME VII
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, BureauU. S. of Morphology and Taxonomy of Algae. E. N
Plant Industry, Washington, D. C. Transeau, Ohio State University,
Assistant Editor, Mart R. Burr, U. S. Columbus, Ohio.
Bureau of Plant Industry, Washington,
Morphology andD. C. Taxonomy of Bryophytes.
Alexander W. Evans,Bibliography, Biography, and History. Yale University,
New Haven, Connecticut.Neil E. Stevens, U. S. Bureau of Plant
Industry, Washington, D. C.
Morphology and Taxonomy of Fungi,
Botanical Education. C. Stuart Gager,
Lichens, Bacteria, and Myxomycetes.
Brooklyn Botanic Garden, Brooklyn,
H. M. FiTZPATRicK, Cornell University,New York.—Assistant Editor, Alfred
Ithaca, New York.—Assistant Editor,GuNDERSEN, Brooklyn Botanic Garden, Carlos E. Chardon, Cornell
Brooklyn, New York.
Ithaca, New York.
Cytology. Gilbert M. Smith, University
of Wisconsin, Madison, Wisconsin. Paleobotany and Evolutionary History.
Assistant Editor, Geo. S. Bryan, Uni- Edward W. Berry, The Johns Hopkins
versity ofWisconsin, Madison, University, Baltimore, Maryland.
Ecology and Plant Geography. H. C.
CowLES, The University Pathology. G. H.of Chicago, Coons, Michigan Agri-
Chicago, Illinois. cultural College,—Assistant Editor, Geo. East Lansing, Michi-
D. Fuller, The gan.—Assistant of Editor, C. W. Bennett, Illinois. Michigan Agricultural College, East
Forest Botany and Forestry. Raphael Lansing, Michigan.
ZoN, Forest Service, Washington,U. S.
PharmaceuticalBotanyandPharmacognosy.D. C.—Assistant Editor, J. V. Hofmann,
Heber W. Youngken, PhiladelphiaU. S. Forest Service, Wind River Experi-
College of Pharmacy and Science, Phila-ment Station, Stabler, Washington.
delphia, Pennsylvania.—Assistant Edi-Genetics. George H. Shull, Princeton
tor, E. N. Gathercoal, 701 South WoodUniversity, Princeton, New Jersey.
Street, Chicago, Illinois.Assistant Editor, J. P. Kelly, Pennsyl-
vania State College, State College, Penn-
Physiology. B. M. Dugqar, Missouri
sylvania.
Botanical Garden, Louis, Missouri.St.
Horticulture. J. H. Gourley,West Virginia
Assistant Editor, Carroll W. Dodge,
University, Morgantown, Virgmia.
Brown University, Providence, Rhode—Assistant Editor, H. E. Knowlton,
Island.
West Virginia University, Morgantown, Virginia. Soil Science. J. J. Skinner, U. S. Bureau
Miscellaneous, Unclassified Publications. of Plant Industry, Washington, D. C.
Burton E. Livingston, The Johns Assistant Editorj F. M. Schertz, U. S.
Hopkins University, Baltimore, Mary- Bureau of Plant Industry, Washington,
land.—Assistant Editor, Sam F. Tre- D. C.
LEASE, The Johns Hopkins University,
Baltimore, Taxonomy of Vascular Plants. J. M.Maryland.
Greenman, Missouri Botanical Garden,Morphology, Anatomy, and Histology of
Vascular Plants. St. Louis, Missouri.—Assistant Editor,E. W. Sinnott, Con-
necticut Agricultural E. B. Payson, Missouri Botanical Gar-College, Storrs,
Connecticut. den, St. Louis, Missouri.
COMMITTEE FOR 1921BIBLIOGRAPHY
J. R. Schramm, Chairman, Cornell University, Ithaca, New York
H. O. BucKMAN R. Hosmer
W. H. Chandler L. Knudson
A. J. Eames E. G. Montgomery
R. A. Emerson D. Reddick
Fitzpatrick L. W. SharpH. M.
K. M.Wiegand
R. S. Harris, Secretary
iv: :
CONTENTS
The Societies Represented and the Members of the Board of Control Page iii
of Editors and Assistant EditorsThe Board for Volume VII Page iv
Sections:
Agronomy Entries 1-63, 566-684, 1528-1588
Bibliography, Biography, and History 64-76, 685-710, 158&-1606
Botanical Education Entries 77-99, 1607-1610711-718,
Cytology Entries 719-739, 1611-1617
Forestry and Forest Botany Entries 100-156, 740-838, 1618-1667
Genetics 157-249, 839-943, 1668-1854
Horticulture:
Fruits and General Horticulture Entries 250-291, 944-1009, 1885-1945
Floriculture and Ornamental Horticulture Entries 292-311, 1010-1025, 1855-1884
Vegetable Culture 312-313, 1026-1035, 1946-1953
Horticultural Products Entries 314-315, 1036-1047, 1954-1956
Morphology, Anatomy, and Histology of Vascular Plants Entries 31&-337, 1048-1077,
1957-1967
Morphology and Taxonomy of Bryophytes Entries 338-354, 1078-1096, 1968-1977
Morphology Taxonomy of Fungi,and Lichens, Bacteria, and Myxomycetes:
Fungi Entries 355-370, 1978-1991
Lichens 371-372, 1992-1995
Bacteria 1996-2001Entries 373-377,
Myxomycetes 2002-2004Entries
Paleobotany and Evolutionary History 2005-2016Entries 378-395, 1097-1124,
Pathology
Plant Disease Survey (Reports of Disease Occurrence and Severity) Entries 1125-
1138, 2017-2020
The Pathogene (Biology, Infection Phenomena, Dispersal) Entries 1139-1149,
2021-2028
The Host (Resistance, Susceptibility, Morbid Anatomy, and Physiology) Entries
1150-1167, 2029-2031
Descriptive Plant Pathology Entries 1168-1213, 2032-2049
Eradication and Control 1214-1255, 2050-2061
Regulatory Measures Entries 1256-1259
Miscellaneous (Methods, Cognate Researches, etc.). .Entries 1260-1275, 2062-2074
Pharmaceutical Botany and Pharmacognosy Entries 1276-1289, 2075-2111
Physiology
General Entries 396-400, 2112
Protoplasm, Motility 2113-2114Entries 1290-1291,
Diffusion, Permeability, Adsorption 1292-1296, 2115-2117
Water Relations Entries 2118-21191297-1298,
Mineral Nutrients Entries 401-406, 2120-21261299,
Photosynthesis Entries 1300-1301, 2127-2131
Metabolism (General) Entries 407-419, 1302-1328, 2132-2141 (Nitrogen Relations) Entries 1329-1336, 2142-2145 (Enzymes, Fermentation) Entries 420-421, 1337-1351, 214&-2153
Metabolism (Respiration) Entries 1352-1354
Organism 2154-2156as a Whole Entries 422-426, 1355-1358,
Growth, Development, 2157-2162Reproduction 427-430, 1359-1363,
Movements of Growth 2163-2166and Turgor Changes Entries 431, 1364-1366,
Germination, Renewal of Activity Entries 432-433, 1367-1368
VVI CONTENTS
Entries 434-435, 1369-1370, 2167Temperature Relations
Entries 436-437, 1371-1373, 2168-2171Radiant Energy 438-440, 1374-1378, 2172-2174Toxic Agents
Entries 441-442, 1379Physiology of Disease
2175-2176Entries 443-446, 1380-1385,Miscellaneous
Soil Science:
Entries 1386-1397, 2177-2180General 447-450, 1398-1401Soil Acidity
Entries 451-456, 1402-1407, 2181-2184Influence of Biological Agents
Entries 457-467, 2185-2189Fertility Studies
Entries 1408-1413Fertilization
1414-1420Fertilizer Resources
468-472EntriesMoisture Relations 473^76Peat
Entries 477-480Miscellaneous
Plants:Taxonomy of Vascular
Entries 481-496General
Entries 503-551, 1421-1498, 2190-2259Spermatophytes
Entries 497-502Pteridophytes
Entries 552-565, 1499-1527, 2260-2271Unclassified PublicationsMiscellaneous,
VII Pa^e 335Authors' Names appearing in VolumeIndex to
ERRATA
Volume VII
Gerome read Gerome.Entry 29. For
For Morris, C. read Morris, Daniel. 72. J.
Brierly, W. G. read Brierley, W. G.Entry 169. For
For Gunliffe read Cunliffe.Entry 263.
B.F