R. metternichii var. micranthum
Photo by Hideo Suzuki
See Cover Article

The Quarterly Bulletin
of the
American Rhododendron Society

Spring 1976
Vol. 30 No. 2

Published quarterly by the AMERICAN RHODODENDRON SOCIETY, Rt. 2, Box 254, Aurora, Oregon. Membership subscription to the American Rhododendron Society $12 a year. The Quarterly Bulletin of the American Rhododendron Society is included as a benefit of membership. Copyright 1976 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 Azaleas as Refugees and Colonists on the Volcanoes by Frank Doleshy	undefined	undefined A Half Century of Rhododendrons at Seacrest Arboretum by John E. Ford
Issue Contents Phosphorus by Bob Badger	undefined	undefined Calcium - A Needed Element by R. L. Ticknor
Issue Contents Azaleas of the Obtusum Subseries at Winterthur by Hal Bruce	undefined	undefined Endangered and Threatened Rhododendron Species by Byron Vernimb
Issue Contents 1976 ARS Annual Meeting Annual Meeting Program	undefined	undefined A Visit to Hong Kong by P. G. Valder
Issue Contents Rhododendron Breeders Roundtable 1976	undefined	undefined Rhododenutrition by Dave Goheen
Issue Contents A Growing Medium for Malesian Rhododendrons by Arthur W. Headlam	undefined	undefined Pukeiti Rhododendron Trust to Celebrate 25th Jubilee by Graham Smith
Issue Contents R. metternichii var. micranthum by Hideo Suzuki	undefined	undefined R. campylogynum var. cremastum by Harold Greer
Issue Contents A New Malesian Hybrid by P. H. Brydon	undefined	undefined More on R. vemicosum aff. 18139 by Ray and Jane Goodrich
Issue Contents Behold a Gardener's Best Friend - The Earthworm by Art Frazer	undefined	undefined A Good Natural Fertilizer for Rhododendrons by Frank Packard
Issue Contents Incubation Temperature and Pollen Tube Growth in Rhododendron: A Preliminary Report by Robert J. Campbell	undefined	undefined Propagation of Evergreen Azaleas by R. D. Welshmer
		Issue Contents Rhododendron Monograph in Preparation
Issue Contents Lewis County Chapter Bronze Medal 1975	undefined	undefined Arthur O. "Art" Wright 1907-1975 by Howard Slonecker
Issue Contents ARS Plant Registry	undefined	undefined ARS Show Dates
Issue Contents Princeton Chapter Bronze Medals	undefined	undefined Letter to the Editor from T. Lelliott
Issue Contents	undefined	undefined Advertisements

OFFICERS
President	undefined Eastern Vice President	undefined Western Vice President
DR. AUGUST KEHR	undefined FRED GALLE	undefined E C BROCKENBROUGH
Secretary-Treasurer	undefined Executive Secretary	undefined Editor
TED VAN VEEN	undefined BERNICE J. LAMB	undefined MOLLY GROTHAUS

BOARD OF DIRECTORS
BOARD OF DIRECTORS 1976
BOARD OF DIRECTORS WARREN BERG - JOHN P. EVANS - THOMAS W. KOENIG - ED EGAN
BOARD OF DIRECTORS 1977
BOARD OF DIRECTORS ESTHER BERRY - ARTHUR DOME - GEORGE W. CLARKE - HENRY A SCHANNEN
BOARD OF DIRECTORS 1978
BOARD OF DIRECTORS SIDNEY BURNS - DR L KEITH WADE - FRANKLIN WEST - ERNEST YELTON
BOARD OF DIRECTORS

PRESIDENTS OF CHAPTERS
PRESIDENTS OF CHAPTERS AZALEA	undefined LEWIS COUNTY	undefined OLYMPIC PENINSULA	undefined SOUTHERN CALIFORNIA
PRESIDENTS OF CHAPTERS Frank A. Smith	undefined Antone Johson	undefined Mrs Robert S Lockhart	undefined Carl Deul
PRESIDENTS OF CHAPTERS BIRMINGHAM	undefined MASSACHUSETTS	undefined PHILADELPHIA	undefined SOUTHEASTERN
PRESIDENTS OF CHAPTERS R. D. Welshmer	undefined Jack Cowles	undefined George W. Muller Jr.	undefined Mrs Ann Richardson
PRESIDENTS OF CHAPTERS CALIFORNIA	undefined MIDDLE ATLANTIC	undefined PIEDMONT	undefined SOUTHWESTERN OR
PRESIDENTS OF CHAPTERS Hadley Osborn	undefined Kenneth McDonald	undefined Daniel H Rumple Jr.	undefined Tom Drake
PRESIDENTS OF CHAPTERS CONNECTICUT	undefined MIDWEST	undefined PORTLAND	undefined TACOMA
PRESIDENTS OF CHAPTERS Rudolph Berg	undefined Tom Homer	undefined Edgar H Olsen	undefined Dan Morris
PRESIDENTS OF CHAPTERS DENMARK	undefined MOHAWK-HUDSON	undefined POTOMAC VALLEY	undefined TAPPAN ZEE
PRESIDENTS OF CHAPTERS Palle Kristensen	undefined Mrs Helen Breeze	undefined S E Saunders	undefined Emil V Bohnel
PRESIDENTS OF CHAPTERS EUGENE	undefined MONTEREY BAY	undefined PRINCETON	undefined TIDEWATER
PRESIDENTS OF CHAPTERS Ed Siegmund	undefined Mrs Marie Oleson	undefined Richard P Clark	undefined Cdr. Ian E. M. Donovan
PRESIDENTS OF CHAPTERS GRAYS HARBOR	undefined NEW JERSEY	undefined SAN MATEO	undefined TUALATIN VALLEY
PRESIDENTS OF CHAPTERS Mrs Harry Sprangler	undefined M. S. Ahlen	undefined Marge Farwell	undefined Ralph Shumm
PRESIDENTS OF CHAPTERS GREAT LAKES	undefined NEW YORK	undefined SEATTLE	undefined VALLEY FORGE
PRESIDENTS OF CHAPTERS Otto Prycl	undefined Dorothy Schlaikjer	undefined David Bledsoe	undefined Carol J High, VMD
PRESIDENTS OF CHAPTERS INDIANAPOLIS	undefined NORTH KITSAP	undefined SHELTON	undefined VANCOUVER, B. C.
PRESIDENTS OF CHAPTERS Lloyd Hahn	undefined Marshall Major	undefined Dr Louis H. Bock	undefined Milton Wildong
PRESIDENTS OF CHAPTERS JUAN de FUCA	undefined OLYMPIA	undefined SIUSLAW	undefined WILLIAM BARTRAM
PRESIDENTS OF CHAPTERS Robert E Wells	undefined William Melton	undefined Bruce Pratt	undefined Henry C. Burdette
PRESIDENTS OF CHAPTERS
PRESIDENTS OF CHAPTERS EDITORIAL BOARD
PRESIDENTS OF CHAPTERS P H BRYDON, Chairman, Portland Chapter - HADLEY OSBORN, California Chapter
PRESIDENTS OF CHAPTERS DR. HARRY HOITINK, Great Lakes Chapter - FRED KNAPP, New York Chapter
PRESIDENTS OF CHAPTERS FRED GALLE, Middle Atlantic Chapter

ADVERTISING RATES FOR THE A.R.S. BULLETIN Copy should be received six weeks preceding date of publication.
FULL PAGE	undefined One-Time Rate   $85.00	undefined Four-Time Rate  $300.00
ONE HALF PAGE	undefined One-Time Rate   $50.00	undefined Four-Time Rate  $170.00
ONE FOURTH PAGE	undefined One-Time Rate   $25.00	undefined Four-Time Rate  $85.00
RATE PER INCH	undefined One-Time Rate   $6.00	undefined Four-Time Rate  $20.00
For information on membership, publications, and advertising write to the Executive Secretary, Bernice J. Lamb, Portland OR.  Send advertising copy and material for the Bulletin to Molly M. Grothaus, Lake Oswego, OR.