R. 'Parker's Pink'
See Cover Article

The Quarterly Bulletin
of the
American Rhododendron Society

July, 1971
Vol. 25 No. 3

Published quarterly by the AMERICAN RHODODENDRON SOCIETY, Rt. 2, Box 254, Aurora, Oregon. Membership subscription to the American Rhododendron Society $7.50 a year. The Quarterly Bulletin of the American Rhododendron Society is included as a benefit of membership. Copyright 1971 by the American Rhododendron Society. Permission to reprint any portion of this volume must be granted by the Society.

Issue Contents
What is Hardiness All About? by Fred E. Knapp		The Kalmias and Their Hybrids by Richard A. Jaynes
Microclimates and Their Effect on Plant Hardiness by Alfred J. Fordham		Exbury Azaleas - From Seed, Cuttings, and Stools by Lawrence L. Carville
Hybridization in the Genus Rhododendron with Particular Reference to Inheritance of White Flower Color in R. dauricum by Gustav A. L. Mehlquist		Our Front Cover by Mrs. Fred E. Knapp
		Lester E. Brandt by Roy Hacanson & Fred Robbins
Rhododendron pseudochrysanthum by Carl H. Phetteplace, M.D.		R. davidsonianum 'Ruth Lyons' by Mrs. Ruth Lyons
R. wardii R.S.F. #96 by P. H. Brydon		Bosley - Dexter Rhododendrons by Richard W. Bosley
President's Report, Annual Meeting, 1971 by Carl H. Phetteplace M.D.		Princeton Chapter Bronze Medal Citations by Josephine V. Heuser
A. R. S. Plant Registry		Frank S. Curto
A New Look at Azalea Petal Blight Control by J. Peterson and S. H. Davis Jr.		Rhododendron catawbiense at Low Elevations by Robert L. Schwind
Rhododendron and Azalea Collection of the John T. Tyler Arboretum by John Wister & R. Macdonald		Rhododendrons in South Eastern Washington and Adjacent Areas by D. Radebaugh, Jr.
Siuslaw and Connecticut Bronze Medals		Advertisements

OFFICERS
President	Eastern Vice President	Western Vice President
DR. ROBERT L. TICKNOR	ALFRED S. MARTIN	R. CURT HUEY
Secretary-Treasurer		Executive Secretary
		MRS. W. J. CURTIS
Editor	Associate Editor	Contributing Editor
P. H. BRYDON	FRED E. KNAPP	DR. HERBERT HECKENBLEIKNER

BOARD OF DIRECTORS

MELVIN C. ALLEN, Santa Cruz, Calif., President Monterey Bay Chapter

CHARLES H. ANDERSON, Bellevue, Wn., Term expires 1971

LEWIS BAGOLY, Phoenixville, Pa., President Valley Forge Chapter

RICHARD J. BABA, Chicago, Ill., President Midwest Chapter

WARREN BERG, Kent, Wn., Term expires 1973

MRS. ROBERT BERRY, Aberdeen, Wn., Terms expires 1972

GEORGE BETTS, Rochester, Wa., President Lewis County Chapter

WALTER J. BLYSKAL, Spring Valley, N.Y., President Tappan Zee Chapter

BEN M. BOYD, Atlanta, Ga., President Azalea Chapter

E. C. BROCKENBROUGH, M.D., Bellevue, Wa., President Seattle Chapter

JAMES CAPERCI, Seattle, Wn., Term expires 1973

GEORGE CLARKE, Portland, Ore., Term expires 1974

DR. J. HAROLD CLARKE, Long Beach, Wn., Term expires 1972

FRED COLLINS, Haney, B.C., Canada, President, Vancouver, B.C. Chapter

ROBERT COMERFORD, Marion, Ore., Term expires 1972

ARTHUR COYLE, Waller, Tex., President Southern Chapter

FRANK DOLESHY, Seattle, Wa., Term Expires 1971

DARIUS ECCLES, Port Townsend, Wn., President Olympic Peninsula Chapter

NEWTON W. EDWARDS, Alexandria, Va., President Potomac Valley Chapter

ERNEST EGAN, New Haven, Conn., President Connecticut Chapter

JOHN E. EICHELSER, Olympia, Wn., President Olympia Chapter

JOHN EVANS, Oakland, Ca., President California Chapter

EVERETT FARWELL JR., Woodside, Ca., President San Mateo County Chapter

M. ROBERT FENTON, Pittsburgh, Pa., President Great Lakes Chapter

DAVID FLUHARTY, M.D., Newport News, Va., President Tidewater Chapter, Term Expires 1974

FRED GALLE, Pine Mountain, Ga., Term expires 1972

DR. DAVID GOHEEN, Camas, Wa., President Portland Chapter

MRS. JAMES HAINES, Aberdeen, Wn., President Grays Harbor Chapter

DR. HERBERT HECHENBLEIKNER, Charlotte, N.C., President Piedmont Chapter

JOHN HENNY, Brooks, Ore., Term expires 1973

DR. FRANKLIN HERRICK, Shelton, Wa., President Shelton Chapter

MRS. LEON J. HEUSER, Robbinsville, N.J., President Princeton Chapter

HENRY HEYDERHOFF, Bloomingdale, N.J., President New Jersey Chapter

MRS. HARVEY HOOKS, Birmingham, Ala., President Birmingham Chapter

ROBERT R. HUBER, Salford, Pa., President Valley Forge Chapter

R. CURT HUEY, Springfield, Ore., P resident Eugene Chapter

OLAV JACOBSEN, Bainbridge Island, Wa., President North Kitsap Chapter

GORDON JONES. Planting Fields Arboretum, N.Y., Term Expires 1974

FRED E. KNAPP, Locust Valley, N. Y., President New York Chapter

EDMUND V. MEZITT, Hopkington, Mass., President Massachusetts Chapter

RAY MICHEL, Indianapolis, Ind., President Indianapolis Chapter

HARRY NASH, Waynesboro, Va., President Middle Atlantic Chapter

JAY O'LEARY, M.D., Coos Bay, Or., President Southwestern Oregon Chapter

DEVERN W. PINNOCK, M.D., Florence, Ore., President Siuslaw Chapter

DR. EMERSON A. REED, Media, Pa., President Philadelphia Chapter

TED RICHARDSON, Mountain Home, N.C., President Southeastern Chapter

GEORGE W. RING, Fairfax, Va., President Potomac Valley Chapter

GORDON SAHNOW, JR., Hillsboro, Ore., President Tualatin Valley Chapter

BRITT M. SMITH, Kent, Wa., President Tacoma Chapter

RALPH H. SMITH, Delmar, N.Y., President Mohawk-Hudson Chapter

TED VAN VEEN, Portland, Ore., Term expires 1973

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For information on membership, publications, and advertising write to the Executive Secretary, Mrs. William Curtis, Sherwood, Ore.  Send material for Bulletin to P. H. Brydon, Salem, Ore.