R. pemakoense
See Cover Article

The Quarterly Bulletin
of the
American Rhododendron Society

April 15, 1964
Vol. 18 No. 2

Published quarterly by the AMERICAN RHODODENDRON SOCIETY, 3514 N. Russet St., Portland. Ore, Membership subscription to the American Rhododendron Society $5.00 a year. The Quarterly Bulletin of the American Rhododendron Society is included as a benefit of membership. Copyright 1964 by the American Rhododendron Society. Permission to reprint any portion of this volume must be granted in writing by the Society

Issue Contents
Issue Contents The Effect of Phosphorus on Rhododendron Flower Bud Formation by Arthur Myhre and W. Mortensen	undefined	undefined An Addition to the Yak About yakusimanum by David G. Leach
Issue Contents Amateur Rhododendron Propagation Techniques by John G. Lofthouse	undefined	undefined Hybrids of Rhododendron yakushimanum by Robert Adams
Issue Contents The Species Situation in the U. S. A. by J. Harold Clarke	undefined	undefined More About Rhododendrons in Southern Red Clay by Charles A. Dewey Jr.
Issue Contents Cover Article
Issue Contents Study of Hair Types in Rhododendrons by Dr. Alexander Martin	undefined	undefined Further Comments on Azalea Species by S. D. Coleman
Issue Contents The Ralph Van Landingham Garden by Charles A. Dewey Jr.	undefined	undefined The Case for R. 'Rosa Mundi' by Ruth Jacobson
Issue Contents We've Gone to Seed by Esther Berry	undefined	undefined Growing Rhododendrons in the Southeast
Issue Contents ARS Plant Registry	undefined	undefined Rhododendron Ratings
Issue Contents Bonsai	undefined	undefined Rhododendrons for New England
Issue Contents Growth Retardants	undefined	undefined A Note from Japan
Issue Contents Rhododendrons in Czechoslovakia	undefined	undefined Show Announcements
Issue Contents What's Going On In The World Rhododendron News From Here And There	undefined	undefined Book Notes: The Rhododendron Handbook, Part I, The Rhododendron and Camellia Yearbook, 1964
Issue Contents By-Laws	undefined	undefined Advertisements

OFFICERS
President	undefined Vice President
E. B. DUNN	undefined CARL H. PHETTEPLACE, M.D.
Secretary-Treasurer	undefined Executive Vice President and Editor
RUTH M. HANSEN	undefined DR. J. HAROLD CLARKE

BOARD OF DIRECTORS
BOARD OF DIRECTORS MRS. ROBERT BERRY, Aberdeen, Wash., Term expires 1965
BOARD OF DIRECTORS JAMES P. BERRY, JR., Margate, N.J., President Philadelphia Chapter
BOARD OF DIRECTORS SIDNEY V. BURNS, Syosset, L. I., N.Y., President New York Chapter
BOARD OF DIRECTORS MERLE E. CISNEY, Camas, Wash., Term expires 1965
BOARD OF DIRECTORS ROY W. CLARK, Olympia, Wash., President Olympia Chapter
BOARD OF DIRECTORS R. E. COMERFORD, Marion, Ore., Term expires 1965
BOARD OF DIRECTORS E. F. DRAKE, Port Townsend, Wash., President Olympic Peninsula Chapter
BOARD OF DIRECTORS JOHN EICHELSER, Olympia, Wash., President Tacoma Chapter
BOARD OF DIRECTORS ARTHUR ELLIOTT, Otter Lake, Mich., President Great Lakes Chapter
BOARD OF DIRECTORS CARL FAWCETT, Tacoma, Wash., Term expires 1964
BOARD OF DIRECTORS HENRY FLEMING, Upper Nyack, N.Y., President Tappan Zee Chapter
BOARD OF DIRECTORS DAVID FREEMAN, Vancouver, B.C., President Vancouver B.C. Chapter
BOARD OF DIRECTORS GEORGE GRACE, Portland, Ore., Term expires 1964
BOARD OF DIRECTORS LOUIS C. GROTHAUS, Portland, Ore., President Portland Chapter
BOARD OF DIRECTORS C. T. HANSEN, Portland, Ore., Term expires 1964
BOARD OF DIRECTORS PAUL N. HARRIS, M.D., Indianapolis, Ind., President Indianapolis Chapter
BOARD OF DIRECTORS JOHN HENNY, Brooks, Ore., Term expires 1964
BOARD OF DIRECTORS DR. F. W. HERRICK, Shelton, Wash., President Shelton Chapter
BOARD OF DIRECTORS DR. LEON J. HEUSER, Princeton, N.J., President Princeton Chapter
BOARD OF DIRECTORS CHRIS JOHNSON, Mercer Island, Wash., President Seattle Chapter
BOARD OF DIRECTORS ALFRED F. KELLY, Middletown, N.J., President Mid-Jersey Chapter
BOARD OF DIRECTORS EDWARD H. LONG, Oakland, Calif., President California Chapter
BOARD OF DIRECTORS KENNETH MARSHALL, Aberdeen, Wash., President Grays Harbor Chapter
BOARD OF DIRECTORS DONALD MCCLURE, Seattle, Wash., Term expires 1964
BOARD OF DIRECTORS DALE MCCURDY, Aurora, Ill., President Midwest Chapter
BOARD OF DIRECTORS EVERETT MITCHELL, Asheville, N. C., President Southeastern Chapter
BOARD OF DIRECTORS FRED REES, Wyckoff, N. J., President New Jersey Chapter
BOARD OF DIRECTORS CECIL SMITH, Aurora, Ore., Term expires 1964
BOARD OF DIRECTORS DR. ROBERT L. TICKNOR, Canby, Ore., Term expires 1965
BOARD OF DIRECTORS MERVIN B. VATER, Eugene, Ore., President Eugene Chapter
BOARD OF DIRECTORS MILTON V. WALKER, M.D., Creswell, Ore., Term expires 1965
BOARD OF DIRECTORS THOMAS WHEELDON, M.D., Richmond, Va., President Middle Atlantic Chapter
BOARD OF DIRECTORS

ADVERTISING RATES FOR THE A.R.S. BULLETIN Copy should be received by the 15th of the month preceding date of publication
ADVERTISING RATES FOR THE A.R.S. BULLETIN Copy should be received by the 15th of the month preceding date of publication FULL PAGE	undefined One-Time Rate  $35.00	undefined Four-Time Rate  $125.00
ADVERTISING RATES FOR THE A.R.S. BULLETIN Copy should be received by the 15th of the month preceding date of publication ONE HALF PAGE	undefined One-Time Rate  $20.00	undefined Four-Time Rate  $70.00
ADVERTISING RATES FOR THE A.R.S. BULLETIN Copy should be received by the 15th of the month preceding date of publication ONE FOURTH PAGE	undefined One-Time Rate  $10.00	undefined Four-Time Rate  $35.00
ADVERTISING RATES FOR THE A.R.S. BULLETIN Copy should be received by the 15th of the month preceding date of publication RATE PER INCH	undefined One-Time Rate  $3.00	undefined Four-Time Rate  $10.00
ADVERTISING RATES FOR THE A.R.S. BULLETIN Copy should be received by the 15th of the month preceding date of publication
ADVERTISING RATES FOR THE A.R.S. BULLETIN Copy should be received by the 15th of the month preceding date of publication Advertising information, The Editor, Dr. J. Harold Clarke, Long Beach, Wash.