| 0 | 53117 | 12E0100002 | 'Antonin Dvorak' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100002 ** |
| 1 | 53121 | 12E0100006 | 'Don Juan' | Rhododendron hybr. | Czechoslovakia | | 2 | 12E0100006 ** |
| 2 | 53122 | 12E0100007 | 'Eva' | Rhododendron hybr. | Czechoslovakia | | 2 | 12E0100007 ** |
| 3 | 53123 | 12E0100008 | 'Humoreska' | Rhododendron hybr. | Czechoslovakia | | 2 | 12E0100008 ** |
| 4 | 53126 | 12E0100011 | 'Lunik' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100011 ** |
| 5 | 53127 | 12E0100012 | 'Marka' | Rhododendron decorum Franch. | Czechoslovakia | | 2 | 12E0100012 ** |
| 6 | 53128 | 12E0100013 | 'Milan' | Rhododendron hybr. | Czechoslovakia | | 2 | 12E0100013 ** |
| 7 | 53130 | 12E0100015 | 'Marie Oliva Schlickova' | Rhododendron decorum Franch. | Czechoslovakia | | 2 | 12E0100015 ** |
| 8 | 53131 | 12E0100016 | 'Motyl' | Rhododendron decorum Franch. | Czechoslovakia | | 2 | 12E0100016 ** |
| 9 | 53133 | 12E0100018 | 'Petr' | Rhododendron hybr. | Czechoslovakia | | 2 | 12E0100018 ** |
| 10 | 53134 | 12E0100019 | 'Profesor Jelinek' | Rhododendron smirnowii Trautv. | Czechoslovakia | | 2 | 12E0100019 ** |
| 11 | 53135 | 12E0100020 | 'Rose Marie' | Rhododendron decorum Franch. | Czechoslovakia | | 2 | 12E0100020 ** |
| 12 | 53136 | 12E0100021 | 'Saba' | Rhododendron decorum Franch. | Czechoslovakia | | 2 | 12E0100021 ** |
| 13 | 53138 | 12E0100023 | 'Vilem Heckel' | Rhododendron hybr. | Czechoslovakia | | 2 | 12E0100023 ** |
| 14 | 53139 | 12E0100024 | 'Arnost Silva Tarouca' | Rhododendron decorum Franch. | Czechoslovakia | | 2 | 12E0100024 ** |
| 15 | 53141 | 12E0100026 | 'Album Grandiflorum' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100026 ** |
| 16 | 53144 | 12E0100029 | 'Arthur Bedford' | Rhododendron ponticum L. | United Kingdom | | 2 | 12E0100029 ** |
| 17 | 53147 | 12E0100032 | 'Blue Danube' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | United Kingdom | | 2 | 12E0100032 ** |
| 18 | 53151 | 12E0100036 | 'Catawbiense Album' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100036 ** |
| 19 | 53152 | 12E0100037 | 'Catawbiense Boursault' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100037 ** |
| 20 | 53153 | 12E0100038 | 'Catawbiense Grandiflorum' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100038 ** |
| 21 | 53154 | 12E0100039 | 'Cunningham's White' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100039 ** |
| 22 | 53155 | 12E0100040 | 'Violetta' | Rhododendron decorum Franch. | Czech Republic | | 2 | 12E0100040 ** |
| 23 | 53166 | 12E0100051 | 'Gomer Waterer' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100051 ** |
| 24 | 53180 | 12E0100065 | 'Lee's Dark Purple' | Rhododendron catawbiense Michx. | unknown | | 2 | 12E0100065 ** |
| 25 | 53182 | 12E0100067 | 'Madame Masson' | Rhododendron hybr. | France | | 2 | 12E0100067 ** |
| 26 | 53191 | 12E0100076 | 'Picturatum' | Rhododendron maximum L. | United Kingdom | | 2 | 12E0100076 ** |
| 27 | 53221 | 12E0100106 | 'Blue Tit' | Rhododendron impeditum Balf. f. & W. W. Sm. | United Kingdom | | 2 | 12E0100106 ** |
| 28 | 53223 | 12E0100108 | 'Sweet Simplicity' | Rhododendron ponticum L. | United Kingdom | | 2 | 12E0100108 ** |
| 29 | 53246 | 12E0100131 | 'Emma' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100131 ** |
| 30 | 53275 | 12E0100160 | 'Hermann Nitzschner' | Rhododendron hybr. | Germany | | 2 | 12E0100160 ** |
| 31 | 53277 | 12E0100162 | 'Humboldt' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100162 ** |
| 32 | 53284 | 12E0100169 | 'Ponticum Roseum' | Rhododendron hybr. | United States | | 2 | 12E0100169 ** |
| 33 | 53295 | 12E0100180 | 'Marie Fortie' | Rhododendron hybr. | Belgium | | 2 | 12E0100180 ** |
| 34 | 53298 | 12E0100183 | 'Bambola' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100183 ** |
| 35 | 53324 | 12E0100209 | 'Von Oheimb - Woislowitz' | Rhododendron catawbiense Michx. | Germany | | 2 | 12E0100209 ** |
| 36 | 53339 | 12E0100224 | 'Roseum Superbum' | Rhododendron catawbiense Michx. | United Kingdom | | 2 | 12E0100224 ** |
| 37 | 53343 | 12E0100228 | 'Schneekrone' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100228 ** |
| 38 | 53344 | 12E0100229 | 'Schneewolke' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100229 ** |
| 39 | 53369 | 12E0100254 | 'Hachmann's Junifeuer' | Rhododendron hybr. | Germany | | 2 | 12E0100254 ** |
| 40 | 53386 | 12E0100271 | 'Rendezvous' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100271 ** |
| 41 | 53390 | 12E0100275 | 'Seestadt Bremerhaven' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 2 | 12E0100275 ** |
| 42 | 53397 | 12E0100282 | 'Admiral Vanessa' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | Germany | | 2 | 12E0100282 ** |
| 43 | 53405 | 12E0100290 | 'Prinses Marijke' | Rhododendron hybr. | Netherlands | | 2 | 12E0100290 ** |
| 44 | 53426 | 12E0100311 | 'Rothenburg' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 2 | 12E0100311 ** |
| 45 | 53449 | 12E0100334 | 'Ariane' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 2 | 12E0100334 ** |
| 46 | 53458 | 12E0100343 | 'Belkanto' | Rhododendron hybr. | Germany | | 2 | 12E0100343 ** |
| 47 | 53477 | 12E0100362 | 'Morgenrot' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100362 ** |
| 48 | 53481 | 12E0100366 | 'Eggert Rohwer' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 2 | 12E0100366 ** |
| 49 | 53506 | 12E0100391 | 'Blue Tit Magor' | Rhododendron impeditum Balf. f. & W. W. Sm. | United Kingdom | | 2 | 12E0100391 ** |
| 50 | 53527 | 12E0100412 | 'Hachmann's Charmant' | Rhododendron hybr. | Germany | | 2 | 12E0100412 ** |
| 51 | 53529 | 12E0100414 | 'Herkules' | Rhododendron campanulatum D. Don | Germany | | 2 | 12E0100414 ** |
| 52 | 53541 | 12E0100426 | 'Ken Janeck' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United States | | 2 | 12E0100426 ** |
| 53 | 53550 | 12E0100435 | 'Silber' | Rhododendron makinoi Tagg ex Nakai | Germany | | 2 | 12E0100435 ** |
| 54 | 53559 | 12E0100444 | 'Pride of Cambridge' | Rhododendron hybr. | unknown | | 2 | 12E0100444 ** |
| 55 | 53566 | 12E0100451 | 'Roland' | Rhododendron hybr. | United Kingdom | | 2 | 12E0100451 ** |
| 56 | 53570 | 12E0100455 | 'Schlaraffia' | Rhododendron hybr. | unknown | | 2 | 12E0100455 ** |
| 57 | 53574 | 12E0100459 | 'Sneezy' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 2 | 12E0100459 ** |
| 58 | 53580 | 12E0100465 | 'Torero' | Rhododendron hybr. | Germany | | 2 | 12E0100465 ** |
| 59 | 53610 | 12E0100495 | 'Azurwolke' | Rhododendron hybr. | unknown | | 2 | 12E0100495 ** |
| 60 | 53614 | 12E0100499 | 'Spaetlese' | Rhododendron hybr. | unknown | | 2 | 12E0100499 ** |
| 61 | 53618 | 12E0100503 | 'Campfire' | Rhododendron hybr. | unknown | | 2 | 12E0100503 ** |
| 62 | 53628 | 12E0100513 | 'Diamant Rosa' | Rhododendron kiusianum Makino | Germany | | 2 | 12E0100513 ** |
| 63 | 53634 | 12E0100519 | 'Koenigstein' | Rhododendron kiusianum Makino | *German Democratic Republic | | 2 | 12E0100519 ** |
| 64 | 53635 | 12E0100520 | 'Lilienstein' | Rhododendron kiusianum Makino | *German Democratic Republic | | 2 | 12E0100520 ** |
| 65 | 53645 | 12E0100531 | 'Satschiko' | Rhododendron hybr. | Germany | | 2 | 12E0100531 ** |
| 66 | 53655 | 12E0100541 | 'Haruko' | Rhododendron hybr. | unknown | | 2 | 12E0100541 ** |
| 67 | 53664 | 12E0100550 | 'Bozena Nemcova' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 2 | 12E0100550 ** |
| 68 | 53666 | 12E0100552 | 'Pavla Kytlicova' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 2 | 12E0100552 ** |
| 69 | 53667 | 12E0100553 | 'Fuego' | Rhododendron haematodes Franch. | Germany | | 2 | 12E0100553 ** |
| 70 | 53672 | 12E0100558 | 'Silvester' | Rhododendron hybr. | Netherlands | | 2 | 12E0100558 ** |
| 71 | 53675 | 12E0100561 | 'Vuyk's Rosyred' | Rhododendron hybr. | unknown | | 2 | 12E0100561 ** |
| 72 | 53676 | 12E0100562 | 'Ramapo' | Rhododendron minus Michx. var. minus | unknown | | 2 | 12E0100562 ** |
| 73 | 53677 | 12E0100563 | 'Audia' | Rhododendron impeditum Balf. f. & W. W. Sm. | unknown | | 2 | 12E0100563 ** |
| 74 | 53678 | 12E0100564 | 'Krumlov' | Rhododendron impeditum Balf. f. & W. W. Sm. | Czechoslovakia | | 2 | 12E0100564 ** |
| 75 | 53679 | 12E0100565 | 'Buchlovice' | Rhododendron impeditum Balf. f. & W. W. Sm. | Czechoslovakia | | 2 | 12E0100565 ** |
| 76 | 53683 | 12E0100602 | 'Boubin' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100602 ** |
| 77 | 53684 | 12E0100603 | 'Doubrava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100603 ** |
| 78 | 53685 | 12E0100604 | 'Profesor Jersov' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100604 ** |
| 79 | 53686 | 12E0100605 | 'Labe' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100605 ** |
| 80 | 53687 | 12E0100606 | 'Morava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100606 ** |
| 81 | 53688 | 12E0100607 | 'Orlice' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100607 ** |
| 82 | 53689 | 12E0100608 | 'Oslava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100608 ** |
| 83 | 53690 | 12E0100609 | 'Otava' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 2 | 12E0100609 ** |
| 84 | 53693 | 12E0100612 | 'Ledikanense' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czechoslovakia | | 2 | 12E0100612 ** |
| 85 | 53756 | 12E0100860 | 'Hluboka' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 2 | 12E0100860 ** |
| 86 | 53760 | 12E0100864 | 'Kacina' | Rhododendron obtusum (Lindl.) Planch. | Czech Republic | | 2 | 12E0100864 ** |