| 0 | 53123 | 12E0100008 | 'Humoreska' | Rhododendron hybr. | Czechoslovakia | | 3 | 12E0100008 ** |
| 1 | 53138 | 12E0100023 | 'Vilem Heckel' | Rhododendron hybr. | Czechoslovakia | | 3 | 12E0100023 ** |
| 2 | 53153 | 12E0100038 | 'Catawbiense Grandiflorum' | Rhododendron catawbiense Michx. | United Kingdom | | 3 | 12E0100038 ** |
| 3 | 53182 | 12E0100067 | 'Madame Masson' | Rhododendron hybr. | France | | 3 | 12E0100067 ** |
| 4 | 53261 | 12E0100146 | 'Gesche' | Rhododendron hybr. | Germany | | 3 | 12E0100146 ** |
| 5 | 53277 | 12E0100162 | 'Humboldt' | Rhododendron catawbiense Michx. | Germany | | 3 | 12E0100162 ** |
| 6 | 53331 | 12E0100216 | 'Cannon's Double' | Rhododendron hybr. | United States | | 3 | 12E0100216 ** |
| 7 | 53338 | 12E0100223 | 'Roseum Elegans' | Rhododendron catawbiense Michx. | United Kingdom | | 3 | 12E0100223 ** |
| 8 | 53373 | 12E0100258 | 'Toucan' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100258 ** |
| 9 | 53388 | 12E0100273 | 'Roselyn' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 3 | 12E0100273 ** |
| 10 | 53403 | 12E0100288 | 'Pink Delight' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100288 ** |
| 11 | 53423 | 12E0100308 | 'Susan' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100308 ** |
| 12 | 53429 | 12E0100314 | 'Persil' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100314 ** |
| 13 | 53456 | 12E0100341 | 'Berliner Liebe' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 3 | 12E0100341 ** |
| 14 | 53475 | 12E0100360 | 'Malwine' | Rhododendron hybr. | Germany | | 3 | 12E0100360 ** |
| 15 | 53483 | 12E0100368 | 'Fruehlingsgold' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100368 ** |
| 16 | 53490 | 12E0100375 | 'Otto Hahn' | Rhododendron hybr. | Germany | | 3 | 12E0100375 ** |
| 17 | 53492 | 12E0100377 | 'Sarina' | Rhododendron hybr. | Germany | | 3 | 12E0100377 ** |
| 18 | 53506 | 12E0100391 | 'Blue Tit Magor' | Rhododendron impeditum Balf. f. & W. W. Sm. | United Kingdom | | 3 | 12E0100391 ** |
| 19 | 53507 | 12E0100392 | 'Bluebird' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100392 ** |
| 20 | 53536 | 12E0100421 | 'Hachmann's Juanita' | Rhododendron hybr. | Germany | | 3 | 12E0100421 ** |
| 21 | 53540 | 12E0100425 | 'Radiant' | Rhododendron hybr. | Netherlands | | 3 | 12E0100425 ** |
| 22 | 53560 | 12E0100445 | 'Silver Slipper' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100445 ** |
| 23 | 53586 | 12E0100471 | 'Ballerina' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100471 ** |
| 24 | 53589 | 12E0100474 | 'Cecile' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100474 ** |
| 25 | 53591 | 12E0100476 | 'Fasching' | Rhododendron hybr. | Germany | | 3 | 12E0100476 ** |
| 26 | 53596 | 12E0100481 | 'Glowing Embers' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100481 ** |
| 27 | 53598 | 12E0100483 | 'Golden Flare' | Rhododendron hybr. | Netherlands | | 3 | 12E0100483 ** |
| 28 | 53599 | 12E0100484 | 'Golden Sunset' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100484 ** |
| 29 | 53601 | 12E0100486 | 'Goldtopas' | Rhododendron hybr. | Germany | | 3 | 12E0100486 ** |
| 30 | 53603 | 12E0100488 | 'Homebush' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100488 ** |
| 31 | 53605 | 12E0100490 | 'Klondyke' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100490 ** |
| 32 | 53613 | 12E0100498 | 'Blaauw's Pink' | Rhododendron hybr. | unknown | | 3 | 12E0100498 ** |
| 33 | 53618 | 12E0100503 | 'Campfire' | Rhododendron hybr. | unknown | | 3 | 12E0100503 ** |
| 34 | 53626 | 12E0100511 | 'Diamant Lachs' | Rhododendron kiusianum Makino | Germany | | 3 | 12E0100511 ** |
| 35 | 53627 | 12E0100512 | 'Diamant Purpur' | Rhododendron kiusianum Makino | Germany | | 3 | 12E0100512 ** |
| 36 | 53628 | 12E0100513 | 'Diamant Rosa' | Rhododendron kiusianum Makino | Germany | | 3 | 12E0100513 ** |
| 37 | 53629 | 12E0100514 | 'Diamant Rot' | Rhododendron kiusianum Makino | Germany | | 3 | 12E0100514 ** |
| 38 | 53631 | 12E0100516 | 'Doria' | Rhododendron brachycarpum D. Don ex G. Don | Germany | | 3 | 12E0100516 ** |
| 39 | 53634 | 12E0100519 | 'Koenigstein' | Rhododendron kiusianum Makino | *German Democratic Republic | | 3 | 12E0100519 ** |
| 40 | 53635 | 12E0100520 | 'Lilienstein' | Rhododendron kiusianum Makino | *German Democratic Republic | | 3 | 12E0100520 ** |
| 41 | 53636 | 12E0100521 | 'Rauschenstein' | Rhododendron kiusianum Makino | *German Democratic Republic | | 3 | 12E0100521 ** |
| 42 | 53637 | 12E0100522 | 'Schrammstein' | Rhododendron kiusianum Makino | unknown | | 3 | 12E0100522 ** |
| 43 | 53638 | 12E0100523 | 'Wildenstein' | Rhododendron kiusianum Makino | unknown | | 3 | 12E0100523 ** |
| 44 | 53639 | 12E0100524 | 'Hachmann's Estrella' | Rhododendron hybr. | Germany | | 3 | 12E0100524 ** |
| 45 | 53645 | 12E0100531 | 'Satschiko' | Rhododendron hybr. | Germany | | 3 | 12E0100531 ** |
| 46 | 53649 | 12E0100535 | 'Ginger' | Rhododendron hybr. | unknown | | 3 | 12E0100535 ** |
| 47 | 53653 | 12E0100539 | 'Hachmann's Granada' | Rhododendron hybr. | Germany | | 3 | 12E0100539 ** |
| 48 | 53655 | 12E0100541 | 'Haruko' | Rhododendron hybr. | unknown | | 3 | 12E0100541 ** |
| 49 | 53660 | 12E0100546 | 'Hinodegiri' | Rhododendron hybr. | Japan | | 3 | 12E0100546 ** |
| 50 | 53663 | 12E0100549 | 'Karolina Svetla' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 3 | 12E0100549 ** |
| 51 | 53666 | 12E0100552 | 'Pavla Kytlicova' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 3 | 12E0100552 ** |
| 52 | 53675 | 12E0100561 | 'Vuyk's Rosyred' | Rhododendron hybr. | unknown | | 3 | 12E0100561 ** |
| 53 | 53676 | 12E0100562 | 'Ramapo' | Rhododendron minus Michx. var. minus | unknown | | 3 | 12E0100562 ** |
| 54 | 53677 | 12E0100563 | 'Audia' | Rhododendron impeditum Balf. f. & W. W. Sm. | unknown | | 3 | 12E0100563 ** |
| 55 | 53681 | 12E0100567 | 'Signalgluehen' | Rhododendron hybr. | Germany | | 3 | 12E0100567 ** |
| 56 | 53682 | 12E0100601 | 'Blanice' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100601 ** |
| 57 | 53683 | 12E0100602 | 'Boubin' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100602 ** |
| 58 | 53684 | 12E0100603 | 'Doubrava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100603 ** |
| 59 | 53685 | 12E0100604 | 'Profesor Jersov' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100604 ** |
| 60 | 53686 | 12E0100605 | 'Labe' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100605 ** |
| 61 | 53687 | 12E0100606 | 'Morava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100606 ** |
| 62 | 53688 | 12E0100607 | 'Orlice' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100607 ** |
| 63 | 53689 | 12E0100608 | 'Oslava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100608 ** |
| 64 | 53690 | 12E0100609 | 'Otava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100609 ** |
| 65 | 53691 | 12E0100610 | 'Sazava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100610 ** |
| 66 | 53692 | 12E0100611 | 'Vltava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100611 ** |
| 67 | 53699 | 12E0100803 | 'Reve d'Amour' | Rhododendron viscosum (L.) Torr. | Netherlands | | 3 | 12E0100803 ** |
| 68 | 53700 | 12E0100804 | 'Ann Lindsay' | Rhododendron hybr. | Germany | | 3 | 12E0100804 ** |
| 69 | 53703 | 12E0100807 | 'Anna Rose Whitney' | Rhododendron hybr. | United States | | 3 | 12E0100807 ** |
| 70 | 53706 | 12E0100810 | 'Caroline Allbrook' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 3 | 12E0100810 ** |
| 71 | 53711 | 12E0100815 | 'Jock Brydon' | Rhododendron occidentale (Torr. & A. Gray) A. Gray | Oregon, United States | | 3 | 12E0100815 ** |
| 72 | 53712 | 12E0100816 | 'Madame Albert van Hecke' | Rhododendron kaempferi Planch. | Belgium | | 3 | 12E0100816 ** |
| 73 | 53729 | 12E0100833 | 'Taurus' | Rhododendron catawbiense Michx. | United States | | 3 | 12E0100833 ** |
| 74 | 53735 | 12E0100839 | 'Kuks' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 3 | 12E0100839 ** |
| 75 | 53737 | 12E0100841 | 'Lednice' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 3 | 12E0100841 ** |
| 76 | 53740 | 12E0100844 | 'Mala Skala' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 3 | 12E0100844 ** |
| 77 | 53741 | 12E0100845 | 'Profesor Scholz' | Rhododendron dichroanthum Diels subsp. scyphocalyx (Balf. f. & Forrest) Cowan | Czech Republic | | 3 | 12E0100845 ** |
| 78 | 53743 | 12E0100847 | 'Velka Morava' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 3 | 12E0100847 ** |
| 79 | 53745 | 12E0100849 | 'Veltrusy' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 3 | 12E0100849 ** |
| 80 | 53749 | 12E0100853 | 'Pruhonice' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 3 | 12E0100853 ** |
| 81 | 53750 | 12E0100854 | 'Wryneck' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100854 ** |
| 82 | 53760 | 12E0100864 | 'Kacina' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 3 | 12E0100864 ** |
| 83 | 53761 | 12E0100865 | 'Kromeriz' | Rhododendron kiusianum Makino | Czech Republic | | 3 | 12E0100865 ** |
| 84 | 53764 | 12E0100868 | 'Golden Eagle' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100868 ** |
| 85 | 53774 | 12E0100878 | 'Strekov' | Rhododendron hybr. | Czech Republic | | 3 | 12E0100878 ** |