| 0 | 53117 | 12E0100002 | 'Antonin Dvorak' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100002 ** |
| 1 | 53118 | 12E0100003 | 'Aurora' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100003 ** |
| 2 | 53123 | 12E0100008 | 'Humoreska' | Rhododendron hybr. | Czechoslovakia | | 2 | 12E0100008 ** |
| 3 | 53124 | 12E0100009 | 'Hurvinek' | Rhododendron dichroanthum Diels subsp. scyphocalyx (Balf. f. & Forrest) Cowan | Czechoslovakia | | 2 | 12E0100009 ** |
| 4 | 53133 | 12E0100018 | 'Petr' | Rhododendron hybr. | Czechoslovakia | | 2 | 12E0100018 ** |
| 5 | 53134 | 12E0100019 | 'Profesor Jelinek' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100019 ** |
| 6 | 53137 | 12E0100022 | 'Sputnik' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100022 ** |
| 7 | 53138 | 12E0100023 | 'Vilem Heckel' | Rhododendron hybr. | Czechoslovakia | | 2 | 12E0100023 ** |
| 8 | 53143 | 12E0100028 | 'America' | Rhododendron hybr. | Netherlands | | 2 | 12E0100028 ** |
| 9 | 53151 | 12E0100036 | 'Catawbiense Album' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100036 ** |
| 10 | 53152 | 12E0100037 | 'Catawbiense Boursault' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100037 ** |
| 11 | 53153 | 12E0100038 | 'Catawbiense Grandiflorum' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100038 ** |
| 12 | 53157 | 12E0100042 | 'Edward S. Rand' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100042 ** |
| 13 | 53159 | 12E0100044 | 'F. D. Godman' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100044 ** |
| 14 | 53169 | 12E0100054 | 'Holbein' | Rhododendron hybr. | Germany | | 2 | 12E0100054 ** |
| 15 | 53170 | 12E0100055 | 'Holger' | Rhododendron hybr. | Germany | | 2 | 12E0100055 ** |
| 16 | 53178 | 12E0100063 | 'Lady Clermont' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100063 ** |
| 17 | 53185 | 12E0100070 | 'Markgraf' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100070 ** |
| 18 | 53188 | 12E0100073 | 'Myrte' | Rhododendron hybr. | Germany | | 2 | 12E0100073 ** |
| 19 | 53199 | 12E0100084 | 'Verbesserte Adriaan Koster' | Rhododendron hybr. | Netherlands | | 2 | 12E0100084 ** |
| 20 | 53204 | 12E0100089 | 'Allah' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100089 ** |
| 21 | 53214 | 12E0100099 | 'Baden Baden' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 2 | 12E0100099 ** |
| 22 | 53216 | 12E0100101 | 'Bashful' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 2 | 12E0100101 ** |
| 23 | 53243 | 12E0100128 | 'Effner' | Rhododendron hybr. | Germany | | 2 | 12E0100128 ** |
| 24 | 53246 | 12E0100131 | 'Emma' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100131 ** |
| 25 | 53247 | 12E0100132 | 'Erich' | Rhododendron hybr. | Germany | | 2 | 12E0100132 ** |
| 26 | 53248 | 12E0100133 | 'Erika' | Rhododendron brachycarpum D. Don ex G. Don | Germany | | 2 | 12E0100133 ** |
| 27 | 53262 | 12E0100147 | 'Giganteum' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100147 ** |
| 28 | 53272 | 12E0100157 | 'Hassan' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100157 ** |
| 29 | 53275 | 12E0100160 | 'Hermann Nitzschner' | Rhododendron hybr. | Germany | | 2 | 12E0100160 ** |
| 30 | 53277 | 12E0100162 | 'Humboldt' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100162 ** |
| 31 | 53280 | 12E0100165 | 'Ibsen' | Rhododendron smirnowii Trautv. | unknown | | 2 | 12E0100165 ** |
| 32 | 53290 | 12E0100175 | 'Moses' | Rhododendron hybr. | Germany | | 2 | 12E0100175 ** |
| 33 | 53311 | 12E0100196 | 'Jacksonii' | Rhododendron caucasicum Pall. | unknown | | 2 | 12E0100196 ** |
| 34 | 53317 | 12E0100202 | 'Lissabon' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 2 | 12E0100202 ** |
| 35 | 53320 | 12E0100205 | 'Mims' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100205 ** |
| 36 | 53323 | 12E0100208 | 'Nova Zembla' | Rhododendron catawbiense Michx. | Netherlands | | 2 | 12E0100208 ** |
| 37 | 53329 | 12E0100214 | 'Polar Star' | Rhododendron smirnowii Trautv. | Netherlands | | 2 | 12E0100214 ** |
| 38 | 53332 | 12E0100217 | 'Progres' | Rhododendron caucasicum Pall. | unknown | | 2 | 12E0100217 ** |
| 39 | 53336 | 12E0100221 | 'Renata' | Rhododendron hybr. | Germany | | 2 | 12E0100221 ** |
| 40 | 53338 | 12E0100223 | 'Roseum Elegans' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100223 ** |
| 41 | 53339 | 12E0100224 | 'Roseum Superbum' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100224 ** |
| 42 | 53342 | 12E0100227 | 'Scharnhorst' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100227 ** |
| 43 | 53347 | 12E0100232 | 'Sonatine' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100232 ** |
| 44 | 53353 | 12E0100238 | 'August Lamken' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 2 | 12E0100238 ** |
| 45 | 53356 | 12E0100241 | 'Catharine van Tol' | Rhododendron catawbiense Michx. | Netherlands | | 2 | 12E0100241 ** |
| 46 | 53359 | 12E0100244 | 'Hachmann's Evelyn' | Rhododendron hybr. | Germany | | 2 | 12E0100244 ** |
| 47 | 53369 | 12E0100254 | 'Hachmann's Junifeuer' | Rhododendron hybr. | Germany | | 2 | 12E0100254 ** |
| 48 | 53371 | 12E0100256 | 'Hachmann's Lagerfeuer' | Rhododendron hybr. | Germany | | 2 | 12E0100256 ** |
| 49 | 53392 | 12E0100277 | 'Stadt Essen' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 2 | 12E0100277 ** |
| 50 | 53395 | 12E0100280 | 'Vorwerk Abendsonne' | Rhododendron hybr. | Germany | | 2 | 12E0100280 ** |
| 51 | 53414 | 12E0100299 | 'Hachmann's Constanze' | Rhododendron hybr. | Germany | | 2 | 12E0100299 ** |
| 52 | 53421 | 12E0100306 | 'Queen Mary' | Rhododendron hybr. | Netherlands | | 2 | 12E0100306 ** |
| 53 | 53431 | 12E0100316 | 'Cornelia Schroeder' | Rhododendron hybr. | Germany | | 2 | 12E0100316 ** |
| 54 | 53433 | 12E0100318 | 'Hurricane' | Rhododendron hybr. | United States | | 2 | 12E0100318 ** |
| 55 | 53436 | 12E0100321 | 'Priska' | Rhododendron hybr. | Germany | | 2 | 12E0100321 ** |
| 56 | 53437 | 12E0100322 | 'Sammetglut' | Rhododendron hybr. | Germany | | 2 | 12E0100322 ** |
| 57 | 53445 | 12E0100330 | 'Pink Perfection' | Rhododendron hybr. | Belgium | | 2 | 12E0100330 ** |
| 58 | 53458 | 12E0100343 | 'Belkanto' | Rhododendron hybr. | Germany | | 2 | 12E0100343 ** |
| 59 | 53465 | 12E0100350 | 'Balalaika' | Rhododendron dichroanthum Diels subsp. scyphocalyx (Balf. f. & Forrest) Cowan | Germany | | 2 | 12E0100350 ** |
| 60 | 53466 | 12E0100351 | 'Tarantella' | Rhododendron hybr. | Germany | | 2 | 12E0100351 ** |
| 61 | 53473 | 12E0100358 | 'Puccini' | Rhododendron hybr. | Germany | | 2 | 12E0100358 ** |
| 62 | 53476 | 12E0100361 | 'Sonare' | Rhododendron hybr. | Germany | | 2 | 12E0100361 ** |
| 63 | 53480 | 12E0100365 | 'Eruption' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | unknown | | 2 | 12E0100365 ** |
| 64 | 53481 | 12E0100366 | 'Eggert Rohwer' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100366 ** |
| 65 | 53489 | 12E0100374 | 'Bruns Loreley' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100374 ** |
| 66 | 53490 | 12E0100375 | 'Otto Hahn' | Rhododendron hybr. | Germany | | 2 | 12E0100375 ** |
| 67 | 53491 | 12E0100376 | 'Mrs R. S. Holford' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100376 ** |
| 68 | 53492 | 12E0100377 | 'Sarina' | Rhododendron hybr. | Germany | | 2 | 12E0100377 ** |
| 69 | 53509 | 12E0100394 | 'H. W. Sargent' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100394 ** |
| 70 | 53523 | 12E0100408 | 'Francesca' | Rhododendron hybr. | United States | | 2 | 12E0100408 ** |
| 71 | 53526 | 12E0100411 | 'Gina Lollobrigida' | Rhododendron hybr. | Netherlands | | 2 | 12E0100411 ** |
| 72 | 53536 | 12E0100421 | 'Hachmann's Juanita' | Rhododendron hybr. | Germany | | 2 | 12E0100421 ** |
| 73 | 53550 | 12E0100435 | 'Silber' | Rhododendron makinoi Tagg ex Nakai | Germany | | 2 | 12E0100435 ** |
| 74 | 53559 | 12E0100444 | 'Pride of Cambridge' | Rhododendron hybr. | unknown | | 2 | 12E0100444 ** |
| 75 | 53566 | 12E0100451 | 'Roland' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100451 ** |
| 76 | 53568 | 12E0100453 | 'Hachmann's Rosenelfe' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100453 ** |
| 77 | 53577 | 12E0100462 | 'The General' | Rhododendron catawbiense Michx. | United States | | 2 | 12E0100462 ** |
| 78 | 53589 | 12E0100474 | 'Cecile' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100474 ** |
| 79 | 53629 | 12E0100514 | 'Diamant Rot' | Rhododendron kiusianum Makino | Germany | | 2 | 12E0100514 ** |
| 80 | 53631 | 12E0100516 | 'Doria' | Rhododendron brachycarpum D. Don ex G. Don | Germany | | 2 | 12E0100516 ** |
| 81 | 53638 | 12E0100523 | 'Wildenstein' | Rhododendron kiusianum Makino | unknown | | 2 | 12E0100523 ** |
| 82 | 53654 | 12E0100540 | 'Graziella' | Rhododendron hybr. | Germany | Historic | 2 | 12E0100540 ** |
| 83 | 53655 | 12E0100541 | 'Haruko' | Rhododendron hybr. | unknown | | 2 | 12E0100541 ** |
| 84 | 53682 | 12E0100601 | 'Blanice' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100601 ** |
| 85 | 53683 | 12E0100602 | 'Boubin' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100602 ** |
| 86 | 53684 | 12E0100603 | 'Doubrava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100603 ** |
| 87 | 53685 | 12E0100604 | 'Profesor Jersov' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100604 ** |
| 88 | 53687 | 12E0100606 | 'Morava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100606 ** |
| 89 | 53688 | 12E0100607 | 'Orlice' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100607 ** |
| 90 | 53689 | 12E0100608 | 'Oslava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100608 ** |
| 91 | 53690 | 12E0100609 | 'Otava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100609 ** |
| 92 | 53693 | 12E0100612 | 'Ledikanense' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czechoslovakia | | 2 | 12E0100612 ** |
| 93 | 53695 | 12E0100702 | 'Largo' | Rhododendron forrestii Balf. f. ex Diels | Czechoslovakia | | 2 | 12E0100702 ** |
| 94 | 53698 | 12E0100802 | 'Olin O. Dobbs' | Rhododendron hybr. | Oregon, United States | | 2 | 12E0100802 ** |
| 95 | 53699 | 12E0100803 | 'Reve d'Amour' | Rhododendron viscosum (L.) Torr. | Netherlands | | 2 | 12E0100803 ** |
| 96 | 53709 | 12E0100813 | 'Germania' | Rhododendron hybr. | Germany | | 2 | 12E0100813 ** |
| 97 | 53728 | 12E0100832 | 'Moser's Maroon' | Rhododendron hybr. | France | | 2 | 12E0100832 ** |
| 98 | 53733 | 12E0100837 | 'Charis' | Rhododendron hybr. | Germany | | 2 | 12E0100837 ** |
| 99 | 53735 | 12E0100839 | 'Kuks' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 2 | 12E0100839 ** |
| 100 | 53738 | 12E0100842 | 'Lenora' | Rhododendron ferrugineum L. | Czech Republic | | 2 | 12E0100842 ** |
| 101 | 53739 | 12E0100843 | 'Loket' | Rhododendron strigillosum Franch. | Czech Republic | | 2 | 12E0100843 ** |
| 102 | 53744 | 12E0100848 | 'Bakkarat' | Rhododendron hybr. | Germany | | 2 | 12E0100848 ** |
| 103 | 53750 | 12E0100854 | 'Wryneck' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100854 ** |
| 104 | 53751 | 12E0100855 | 'Blue Boy' | Rhododendron hybr. | Washington, United States | | 2 | 12E0100855 ** |
| 105 | 53763 | 12E0100867 | 'Belladona' | Rhododendron hybr. | Czech Republic | | 2 | 12E0100867 ** |
| 106 | 53764 | 12E0100868 | 'Golden Eagle' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100868 ** |
| 107 | 53765 | 12E0100869 | 'Ignatius Sargent' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100869 ** |
| 108 | 53766 | 12E0100870 | 'Christian' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100870 ** |
| 109 | 53769 | 12E0100873 | 'C. S. Sargent' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100873 ** |
| 110 | 53770 | 12E0100874 | 'Ursula Siems' | Rhododendron forrestii Balf. f. ex Diels | Germany | | 2 | 12E0100874 ** |
| 111 | 53771 | 12E0100875 | 'Opocno' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 2 | 12E0100875 ** |
| 112 | 67928 | 12E0100897 | 'Kozakov' | Rhododendron hybr. | Czech Republic | | 2 | 12E0100897 ** |