| 0 | 53116 | 12E0100001 | 'Alena' | Rhododendron decorum Franch. | Czechoslovakia | | 0 | 12E0100001 ** |
| 1 | 53117 | 12E0100002 | 'Antonin Dvorak' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 0 | 12E0100002 ** |
| 2 | 53118 | 12E0100003 | 'Aurora' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 0 | 12E0100003 ** |
| 3 | 53119 | 12E0100004 | 'Bohumil Kavka' | Rhododendron hybr. | Czechoslovakia | | 0 | 12E0100004 ** |
| 4 | 53120 | 12E0100005 | 'Dagmar' | Rhododendron decorum Franch. | Czechoslovakia | | 0 | 12E0100005 ** |
| 5 | 53125 | 12E0100010 | 'Lajka' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 0 | 12E0100010 ** |
| 6 | 53126 | 12E0100011 | 'Lunik' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 0 | 12E0100011 ** |
| 7 | 53127 | 12E0100012 | 'Marka' | Rhododendron decorum Franch. | Czechoslovakia | | 0 | 12E0100012 ** |
| 8 | 53128 | 12E0100013 | 'Milan' | Rhododendron hybr. | Czechoslovakia | | 0 | 12E0100013 ** |
| 9 | 53130 | 12E0100015 | 'Marie Oliva Schlickova' | Rhododendron decorum Franch. | Czechoslovakia | | 0 | 12E0100015 ** |
| 10 | 53131 | 12E0100016 | 'Motyl' | Rhododendron decorum Franch. | Czechoslovakia | | 0 | 12E0100016 ** |
| 11 | 53133 | 12E0100018 | 'Petr' | Rhododendron hybr. | Czechoslovakia | | 0 | 12E0100018 ** |
| 12 | 53134 | 12E0100019 | 'Profesor Jelinek' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 0 | 12E0100019 ** |
| 13 | 53135 | 12E0100020 | 'Rose Marie' | Rhododendron decorum Franch. | Czechoslovakia | | 0 | 12E0100020 ** |
| 14 | 53136 | 12E0100021 | 'Saba' | Rhododendron decorum Franch. | Czechoslovakia | | 0 | 12E0100021 ** |
| 15 | 53137 | 12E0100022 | 'Sputnik' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 0 | 12E0100022 ** |
| 16 | 53138 | 12E0100023 | 'Vilem Heckel' | Rhododendron hybr. | Czechoslovakia | | 0 | 12E0100023 ** |
| 17 | 53139 | 12E0100024 | 'Arnost Silva Tarouca' | Rhododendron decorum Franch. | Czechoslovakia | | 0 | 12E0100024 ** |
| 18 | 53140 | 12E0100025 | 'Album Elegans' | Rhododendron catawbiense Michx. | United Kingdom | | 0 | 12E0100025 ** |
| 19 | 53141 | 12E0100026 | 'Album Grandiflorum' | Rhododendron catawbiense Michx. | United Kingdom | | 0 | 12E0100026 ** |
| 20 | 53144 | 12E0100029 | 'Arthur Bedford' | Rhododendron ponticum L. | United Kingdom | | 0 | 12E0100029 ** |
| 21 | 53147 | 12E0100032 | 'Blue Danube' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | United Kingdom | | 0 | 12E0100032 ** |
| 22 | 53148 | 12E0100033 | Blue Peter | Rhododendron hybr. | United Kingdom | | 0 | 12E0100033 ** |
| 23 | 53149 | 12E0100034 | 'Boule de Neige' | Rhododendron hybr. | France | | 0 | 12E0100034 ** |
| 24 | 53151 | 12E0100036 | 'Catawbiense Album' | Rhododendron catawbiense Michx. | United Kingdom | | 0 | 12E0100036 ** |
| 25 | 53152 | 12E0100037 | 'Catawbiense Boursault' | Rhododendron catawbiense Michx. | United Kingdom | | 0 | 12E0100037 ** |
| 26 | 53153 | 12E0100038 | 'Catawbiense Grandiflorum' | Rhododendron catawbiense Michx. | United Kingdom | | 0 | 12E0100038 ** |
| 27 | 53154 | 12E0100039 | 'Cunningham's White' | Rhododendron hybr. | United Kingdom | | 0 | 12E0100039 ** |
| 28 | 53155 | 12E0100040 | 'Violetta' | Rhododendron decorum Franch. | Czech Republic | | 0 | 12E0100040 ** |
| 29 | 53163 | 12E0100048 | 'Genoveva' | Rhododendron catawbiense Michx. | Germany | | 0 | 12E0100048 ** |
| 30 | 53167 | 12E0100052 | 'Gudrun' | Rhododendron hybr. | Germany | | 0 | 12E0100052 ** |
| 31 | 53179 | 12E0100064 | 'Lavender Girl' | Rhododendron fortunei Lindl. subsp. fortunei | United Kingdom | | 0 | 12E0100064 ** |
| 32 | 53181 | 12E0100066 | 'Leopold' | Rhododendron catawbiense Michx. | Germany | | 0 | 12E0100066 ** |
| 33 | 53182 | 12E0100067 | 'Madame Masson' | Rhododendron hybr. | France | | 0 | 12E0100067 ** |
| 34 | 53204 | 12E0100089 | 'Allah' | Rhododendron catawbiense Michx. | Germany | | 0 | 12E0100089 ** |
| 35 | 53247 | 12E0100132 | 'Erich' | Rhododendron hybr. | Germany | | 0 | 12E0100132 ** |
| 36 | 53275 | 12E0100160 | 'Hermann Nitzschner' | Rhododendron hybr. | Germany | | 0 | 12E0100160 ** |
| 37 | 53277 | 12E0100162 | 'Humboldt' | Rhododendron catawbiense Michx. | Germany | | 0 | 12E0100162 ** |
| 38 | 53295 | 12E0100180 | 'Marie Fortie' | Rhododendron hybr. | Belgium | | 0 | 12E0100180 ** |
| 39 | 53301 | 12E0100186 | 'Blurettia' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 0 | 12E0100186 ** |
| 40 | 53313 | 12E0100198 | 'Kantilene' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 0 | 12E0100198 ** |
| 41 | 53322 | 12E0100207 | 'Mrs P. den Ouden' | Rhododendron hybr. | Netherlands | | 0 | 12E0100207 ** |
| 42 | 53323 | 12E0100208 | 'Nova Zembla' | Rhododendron catawbiense Michx. | Netherlands | | 0 | 12E0100208 ** |
| 43 | 53324 | 12E0100209 | 'Von Oheimb - Woislowitz' | Rhododendron catawbiense Michx. | Germany | | 0 | 12E0100209 ** |
| 44 | 53330 | 12E0100215 | 'Hachmann's Porzellan' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 0 | 12E0100215 ** |
| 45 | 53338 | 12E0100223 | 'Roseum Elegans' | Rhododendron catawbiense Michx. | United Kingdom | | 0 | 12E0100223 ** |
| 46 | 53339 | 12E0100224 | 'Roseum Superbum' | Rhododendron catawbiense Michx. | United Kingdom | | 0 | 12E0100224 ** |
| 47 | 53344 | 12E0100229 | 'Schneewolke' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 0 | 12E0100229 ** |
| 48 | 53371 | 12E0100256 | 'Hachmann's Lagerfeuer' | Rhododendron hybr. | Germany | | 0 | 12E0100256 ** |
| 49 | 53390 | 12E0100275 | 'Seestadt Bremerhaven' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 0 | 12E0100275 ** |
| 50 | 53402 | 12E0100287 | 'Kluis Sensation' | Rhododendron griffithianum Wight | Netherlands | | 0 | 12E0100287 ** |
| 51 | 53426 | 12E0100311 | 'Rothenburg' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 0 | 12E0100311 ** |
| 52 | 53449 | 12E0100334 | 'Ariane' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 0 | 12E0100334 ** |
| 53 | 53506 | 12E0100391 | 'Blue Tit Magor' | Rhododendron impeditum Balf. f. & W. W. Sm. | United Kingdom | | 0 | 12E0100391 ** |
| 54 | 53525 | 12E0100410 | 'General D. Eisenhower' | Rhododendron griffithianum Wight | Netherlands | | 0 | 12E0100410 ** |
| 55 | 53540 | 12E0100425 | 'Radiant' | Rhododendron hybr. | Netherlands | | 0 | 12E0100425 ** |
| 56 | 53547 | 12E0100432 | 'Lavendelzauber' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 0 | 12E0100432 ** |
| 57 | 53581 | 12E0100466 | 'Kalamaika' | Rhododendron hybr. | Germany | | 0 | 12E0100466 ** |
| 58 | 53591 | 12E0100476 | 'Fasching' | Rhododendron hybr. | Germany | | 0 | 12E0100476 ** |
| 59 | 53596 | 12E0100481 | 'Glowing Embers' | Rhododendron hybr. | United Kingdom | | 0 | 12E0100481 ** |
| 60 | 53618 | 12E0100503 | 'Campfire' | Rhododendron hybr. | unknown | | 0 | 12E0100503 ** |
| 61 | 53637 | 12E0100522 | 'Schrammstein' | Rhododendron kiusianum Makino | unknown | | 0 | 12E0100522 ** |
| 62 | 53638 | 12E0100523 | 'Wildenstein' | Rhododendron kiusianum Makino | unknown | | 0 | 12E0100523 ** |
| 63 | 53645 | 12E0100531 | 'Satschiko' | Rhododendron hybr. | Germany | | 0 | 12E0100531 ** |
| 64 | 53653 | 12E0100539 | 'Hachmann's Granada' | Rhododendron hybr. | Germany | | 0 | 12E0100539 ** |
| 65 | 53666 | 12E0100552 | 'Pavla Kytlicova' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 0 | 12E0100552 ** |
| 66 | 53669 | 12E0100555 | 'Henry's Red' | Rhododendron hybr. | Germany | | 0 | 12E0100555 ** |
| 67 | 53672 | 12E0100558 | 'Silvester' | Rhododendron hybr. | Netherlands | | 0 | 12E0100558 ** |
| 68 | 53674 | 12E0100560 | 'Marilee' | Rhododendron nakaharae Hayata | unknown | | 0 | 12E0100560 ** |
| 69 | 53676 | 12E0100562 | 'Ramapo' | Rhododendron minus Michx. var. minus | unknown | | 0 | 12E0100562 ** |
| 70 | 53677 | 12E0100563 | 'Audia' | Rhododendron impeditum Balf. f. & W. W. Sm. | unknown | | 0 | 12E0100563 ** |
| 71 | 53678 | 12E0100564 | 'Krumlov' | Rhododendron impeditum Balf. f. & W. W. Sm. | Czechoslovakia | | 0 | 12E0100564 ** |
| 72 | 53679 | 12E0100565 | 'Buchlovice' | Rhododendron impeditum Balf. f. & W. W. Sm. | Czechoslovakia | | 0 | 12E0100565 ** |
| 73 | 53680 | 12E0100566 | 'Charles Bagley' | Rhododendron catawbiense Michx. | United Kingdom | | 0 | 12E0100566 ** |
| 74 | 53693 | 12E0100612 | 'Ledikanense' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czechoslovakia | | 0 | 12E0100612 ** |
| 75 | 53697 | 12E0100801 | 'Sychrov' | Rhododendron impeditum Balf. f. & W. W. Sm. | Czechoslovakia | | 0 | 12E0100801 ** |