Contributers from 2005
Andersen, Henning, Denmark, zone 6 70
Anderson, Allan, United Kingdon 631 - 634
Anderson, Shirley and Allan, USA, zone 6 494- 499
Barlup, Jim, USA, zone 8   81 - 117
Berg, Warren, USA 536 - 537
Bernardy, Karel, USA 635 - 651
Birck, Jens C., Denmark, zone 6    8 -   15
Birck, Jens C., Denmark, zone 6, additional 257 - 263
Birck, Jens C., Denmark, zone 6, additional II 500 - 502
Blee, Alistair J., New Zealand 253 - 256
Brack, Werner, USA, zone 7a   27 -  31
Brack, Werner, USA, zone 7a - additional 557
Chernykh, Elena, - Tatyana Novokova Central Siberian 555 - 556
Botanical Garden,  Novosibirsk,  Russia: Lake 555 - 556
Baikal region Expedition 2004 555 - 556
Clark, Alan J. 2004 Expedition to N.E. India 662 - 863
Clyburn, Bruce, Canada, zone 6a 211 - 214
Cordy, Earl W., USA   43 -  55
Craven, Rich, USA, zone 7   16 -  20
Cullip, Fred W., USA, zone 6   56 -  59
Doi, Yasuyuki, Japan 489 - 493
Eiberg, Hans, Denmark, zone 6 479 - 482
Emmerich, Robert, USA 661
Farbarik, John, USA 630
Flavell, Richard A., USA, zone 6b 590 - 591
Gehnrich, Herman C. (Bud), USA 616 - 617
Gray, George H., USA   21 -  25
Gustafson, Richard, USA, zone 6 472 - 478
Halse, Jørgen, Denmark 597 - 600
Hansen, Jes Denmark: Sichuan exp. 2004 372 - 375
Hardy, Joan, USA, zone 5b 628 - 629
Hartman, Rosemary, D., USA 215 - 241
Harvey, Joe, Canada 483 - 488
Harvey, Joe, Canada, additional 558
Ishida, Shin'ichi, Japan 131 - 134
Jacobsen, Ole Rolf, Denmark, zone 6   39 -  42
Justice, Clive L., Canada 118 - 119
Kasch, Torsten, Denmark 376 - 381
Kepert, Alan, Australia, Austr.Rhodo.Soc.(Vic. Branch)    1  -    7
Kline, Howard R., USA, zone 6 559 - 561
Larsen, Ole Jonny, Norway 188 - 210
Leijdens, Theo., The Netherlands, zone 7 592 - 596
McCullough, Mike, USA, zone 9 264 - 370
Meltzer, Hanns, Germany, zones 4 - 5 538 - 554
Milner, Tom, USA 618 - 627
Murcott, Richard, USA, zone 7   35 -  38
Ohazama, Hideaki, Japan 412 - 417
Oliver, Michael, USA   71 -  80
Pelurie, Frank, USA 403 - 411
Perkins, John and Sally, USA, zone 6a 382 - 402
Petersen, Knud, Denmark, zone 6 371
Ring, Dr. Tom, USA, zone 6 171 - 174
Ringdahl, Bogge, Sweden   65 -  69
Schaarup, Palle, Denmark, zone 6 120 - 130
Sinclair, June, USA 509 - 535
Staune, Claus J., Denmark, zone 6   60 -  64
Stockman, Harold & Morna, USA 242 - 252
Svensson, Johnny, Sweden 601 - 615
Taylor, Margaret, USA, zone 5A   26
Theqvist, Kristian, Finland, zone 5a 147 - 170
van Oost, Hendrik, Belgium, zone 7 175 - 184
Vestergaard, Per Houbak, Denmark 503 - 508
Voitk, Kaarel, Sweden, zone 6   32 -  34
Walton, Patricia J., USA, zone 6 562 - 589
Weagle, John, Canada, zone 6 418 - 471
Wylie, Gordon, USA 185 - 187
Yoshimura, Eizi, Japan (JRS Seed Exchange) 135 - 146
Zimmermann, Robert,  USA, zone 8 652 - 660
Contributers expeditions
Andersen, Henning --Denmark
Davidson, Barry --Australia
Dethero, David L.--USA
Eiberg, Hans --Denmark
Jacobsen, Kenn --Denmark
Johnston, Ivan --Australia
Kratz, Heinz --Germany
Tomastik, Edmond --USA
Van Oost, Hendrik --Belgium
Veile, Jens O.--Denmark
Vinther, Lilli & Boege --Denmark
Wetzel, Barbara D.--USA
Barnard, Robert--Maple Leaf Nursery, USA
Ehret, William W. USA
Ashford, Jason --USA
Brooks, Walter Jr. --USA
Bean, Timothy W.--USA
MacIntyre, Robert C. --USA
Webb, Ken --Canada
Hardy, Joan --USA
Whittaker, Patti -USA
McCarter, Jackson Howard --USA
Thurber, Amy --USA
Peterson, Gregory --USA
Weiskittel, Harry --Marshy Point Nursery, USA
Korwan, Elaine USA