| 0 | 53117 | 12E0100002 | 'Antonin Dvorak' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 4 | 12E0100002 ** |
| 1 | 53118 | 12E0100003 | 'Aurora' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 4 | 12E0100003 ** |
| 2 | 53123 | 12E0100008 | 'Humoreska' | Rhododendron hybr. | Czechoslovakia | | 4 | 12E0100008 ** |
| 3 | 53130 | 12E0100015 | 'Marie Oliva Schlickova' | Rhododendron decorum Franch. | Czechoslovakia | | 4 | 12E0100015 ** |
| 4 | 53134 | 12E0100019 | 'Profesor Jelinek' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 4 | 12E0100019 ** |
| 5 | 53136 | 12E0100021 | 'Saba' | Rhododendron decorum Franch. | Czechoslovakia | | 4 | 12E0100021 ** |
| 6 | 53139 | 12E0100024 | 'Arnost Silva Tarouca' | Rhododendron decorum Franch. | Czechoslovakia | | 4 | 12E0100024 ** |
| 7 | 53143 | 12E0100028 | 'America' | Rhododendron hybr. | Netherlands | | 4 | 12E0100028 ** |
| 8 | 53144 | 12E0100029 | 'Arthur Bedford' | Rhododendron ponticum L. | United Kingdom | | 4 | 12E0100029 ** |
| 9 | 53145 | 12E0100030 | 'Bellini' | Rhododendron wardii W. W. Sm. | Germany | | 4 | 12E0100030 ** |
| 10 | 53162 | 12E0100047 | 'General Grant' | Rhododendron catawbiense Michx. | United States | | 4 | 12E0100047 ** |
| 11 | 53167 | 12E0100052 | 'Gudrun' | Rhododendron hybr. | Germany | | 4 | 12E0100052 ** |
| 12 | 53176 | 12E0100061 | 'Lady Annette de Trafford' | Rhododendron maximum L. | United Kingdom | | 4 | 12E0100061 ** |
| 13 | 53178 | 12E0100063 | 'Lady Clermont' | Rhododendron catawbiense Michx. | United Kingdom | | 4 | 12E0100063 ** |
| 14 | 53212 | 12E0100097 | 'Arno' | Rhododendron catawbiense Michx. | Germany | | 4 | 12E0100097 ** |
| 15 | 53219 | 12E0100104 | 'Blue Ensign' | Rhododendron hybr. | United Kingdom | | 4 | 12E0100104 ** |
| 16 | 53239 | 12E0100124 | 'Madame Linden' | Rhododendron hybr. | Germany | | 4 | 12E0100124 ** |
| 17 | 53246 | 12E0100131 | 'Emma' | Rhododendron catawbiense Michx. | Germany | | 4 | 12E0100131 ** |
| 18 | 53247 | 12E0100132 | 'Erich' | Rhododendron hybr. | Germany | | 4 | 12E0100132 ** |
| 19 | 53252 | 12E0100137 | 'Mount Everest' | Rhododendron hybr. | United Kingdom | | 4 | 12E0100137 ** |
| 20 | 53262 | 12E0100147 | 'Giganteum' | Rhododendron catawbiense Michx. | United Kingdom | | 4 | 12E0100147 ** |
| 21 | 53277 | 12E0100162 | 'Humboldt' | Rhododendron catawbiense Michx. | Germany | | 4 | 12E0100162 ** |
| 22 | 53368 | 12E0100253 | 'Julischka' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 4 | 12E0100253 ** |
| 23 | 53379 | 12E0100264 | 'Hachmann's Ornament' | Rhododendron hybr. | Germany | | 4 | 12E0100264 ** |
| 24 | 53391 | 12E0100276 | 'Schneebukett' | Rhododendron hybr. | Germany | | 4 | 12E0100276 ** |
| 25 | 53436 | 12E0100321 | 'Priska' | Rhododendron hybr. | Germany | | 4 | 12E0100321 ** |
| 26 | 53459 | 12E0100344 | 'Azurro' | Rhododendron hybr. | Germany | | 4 | 12E0100344 ** |
| 27 | 53477 | 12E0100362 | 'Morgenrot' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 4 | 12E0100362 ** |
| 28 | 53478 | 12E0100363 | 'Clivia' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 4 | 12E0100363 ** |
| 29 | 53491 | 12E0100376 | 'Mrs R. S. Holford' | Rhododendron catawbiense Michx. | United Kingdom | | 4 | 12E0100376 ** |
| 30 | 53508 | 12E0100393 | 'Buketta' | Rhododendron hybr. | Germany | | 4 | 12E0100393 ** |
| 31 | 53514 | 12E0100399 | 'Doctor Tjebbes' | Rhododendron hybr. | Netherlands | | 4 | 12E0100399 ** |
| 32 | 53525 | 12E0100410 | 'General D. Eisenhower' | Rhododendron griffithianum Wight | Netherlands | | 4 | 12E0100410 ** |
| 33 | 53566 | 12E0100451 | 'Roland' | Rhododendron hybr. | United Kingdom | | 4 | 12E0100451 ** |
| 34 | 53580 | 12E0100465 | 'Torero' | Rhododendron hybr. | Germany | | 4 | 12E0100465 ** |
| 35 | 53581 | 12E0100466 | 'Kalamaika' | Rhododendron hybr. | Germany | | 4 | 12E0100466 ** |
| 36 | 53591 | 12E0100476 | 'Fasching' | Rhododendron hybr. | Germany | | 4 | 12E0100476 ** |
| 37 | 53608 | 12E0100493 | 'Allotria' | Rhododendron kaempferi Planch. | Germany | | 4 | 12E0100493 ** |
| 38 | 53635 | 12E0100520 | 'Lilienstein' | Rhododendron kiusianum Makino | *German Democratic Republic | | 4 | 12E0100520 ** |
| 39 | 53647 | 12E0100533 | 'George Cunningham' | Rhododendron hybr. | unknown | | 4 | 12E0100533 ** |
| 40 | 53662 | 12E0100548 | 'Marie Podvalova' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 4 | 12E0100548 ** |
| 41 | 53664 | 12E0100550 | 'Bozena Nemcova' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 4 | 12E0100550 ** |
| 42 | 53669 | 12E0100555 | 'Henry's Red' | Rhododendron hybr. | Germany | | 4 | 12E0100555 ** |
| 43 | 53671 | 12E0100557 | 'Silberglanz' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 4 | 12E0100557 ** |
| 44 | 53690 | 12E0100609 | 'Otava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 4 | 12E0100609 ** |
| 45 | 53693 | 12E0100612 | 'Ledikanense' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czechoslovakia | | 4 | 12E0100612 ** |
| 46 | 53701 | 12E0100805 | 'Johann Stern' | Rhododendron hybr. | Germany | | 4 | 12E0100805 ** |
| 47 | 53716 | 12E0100820 | 'Bariton' | Rhododendron hybr. | Germany | | 4 | 12E0100820 ** |
| 48 | 53718 | 12E0100822 | 'Dominik' | Rhododendron hybr. | Germany | | 4 | 12E0100822 ** |
| 49 | 53720 | 12E0100824 | 'Turkana' | Rhododendron hybr. | Germany | | 4 | 12E0100824 ** |
| 50 | 53725 | 12E0100829 | 'Holstein' | Rhododendron catawbiense Michx. | Germany | | 4 | 12E0100829 ** |
| 51 | 53736 | 12E0100840 | 'Sarasate' | Rhododendron hybr. | Germany | | 4 | 12E0100840 ** |
| 52 | 53751 | 12E0100855 | 'Blue Boy' | Rhododendron hybr. | Washington, United States | | 4 | 12E0100855 ** |
| 53 | 53753 | 12E0100857 | 'Orlik' | Rhododendron hybr. | Czech Republic | | 4 | 12E0100857 ** |
| 54 | 53757 | 12E0100861 | 'Karlstejn' | Rhododendron hybr. | Czech Republic | | 4 | 12E0100861 ** |