| 0 | 53121 | 12E0100006 | 'Don Juan' | Rhododendron hybr. | Czechoslovakia | | 3 | 12E0100006 ** |
| 1 | 53122 | 12E0100007 | 'Eva' | Rhododendron hybr. | Czechoslovakia | | 3 | 12E0100007 ** |
| 2 | 53123 | 12E0100008 | 'Humoreska' | Rhododendron hybr. | Czechoslovakia | | 3 | 12E0100008 ** |
| 3 | 53124 | 12E0100009 | 'Hurvinek' | Rhododendron dichroanthum Diels subsp. scyphocalyx (Balf. f. & Forrest) Cowan | Czechoslovakia | | 3 | 12E0100009 ** |
| 4 | 53128 | 12E0100013 | 'Milan' | Rhododendron hybr. | Czechoslovakia | | 3 | 12E0100013 ** |
| 5 | 53129 | 12E0100014 | 'Moravanka' | Rhododendron dichroanthum Diels subsp. scyphocalyx (Balf. f. & Forrest) Cowan | Czechoslovakia | | 3 | 12E0100014 ** |
| 6 | 53133 | 12E0100018 | 'Petr' | Rhododendron hybr. | Czechoslovakia | | 3 | 12E0100018 ** |
| 7 | 53138 | 12E0100023 | 'Vilem Heckel' | Rhododendron hybr. | Czechoslovakia | | 3 | 12E0100023 ** |
| 8 | 53147 | 12E0100032 | 'Blue Danube' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | United Kingdom | | 3 | 12E0100032 ** |
| 9 | 53148 | 12E0100033 | Blue Peter | Rhododendron hybr. | United Kingdom | | 3 | 12E0100033 ** |
| 10 | 53153 | 12E0100038 | 'Catawbiense Grandiflorum' | Rhododendron catawbiense Michx. | United Kingdom | | 3 | 12E0100038 ** |
| 11 | 53154 | 12E0100039 | 'Cunningham's White' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100039 ** |
| 12 | 53155 | 12E0100040 | 'Violetta' | Rhododendron decorum Franch. | Czech Republic | | 3 | 12E0100040 ** |
| 13 | 53156 | 12E0100041 | 'Doctor H. C. Dresselhuys' | Rhododendron hybr. | Netherlands | | 3 | 12E0100041 ** |
| 14 | 53157 | 12E0100042 | 'Edward S. Rand' | Rhododendron catawbiense Michx. | United Kingdom | | 3 | 12E0100042 ** |
| 15 | 53160 | 12E0100045 | 'Fastuosum Flore Pleno' | Rhododendron hybr. | unknown | | 3 | 12E0100045 ** |
| 16 | 53163 | 12E0100048 | 'Genoveva' | Rhododendron catawbiense Michx. | Germany | | 3 | 12E0100048 ** |
| 17 | 53166 | 12E0100051 | 'Gomer Waterer' | Rhododendron catawbiense Michx. | United Kingdom | | 3 | 12E0100051 ** |
| 18 | 53171 | 12E0100056 | 'Hugh Koster' | Rhododendron hybr. | Netherlands | | 3 | 12E0100056 ** |
| 19 | 53180 | 12E0100065 | 'Lee's Dark Purple' | Rhododendron catawbiense Michx. | unknown | | 3 | 12E0100065 ** |
| 20 | 53181 | 12E0100066 | 'Leopold' | Rhododendron catawbiense Michx. | Germany | | 3 | 12E0100066 ** |
| 21 | 53183 | 12E0100068 | 'Marchioness of Landsdowne' | Rhododendron maximum L. | United Kingdom | | 3 | 12E0100068 ** |
| 22 | 53210 | 12E0100095 | 'Mrs Davies Evans' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100095 ** |
| 23 | 53216 | 12E0100101 | 'Bashful' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 3 | 12E0100101 ** |
| 24 | 53221 | 12E0100106 | 'Blue Tit' | Rhododendron impeditum Balf. f. & W. W. Sm. | United Kingdom | | 3 | 12E0100106 ** |
| 25 | 53223 | 12E0100108 | 'Sweet Simplicity' | Rhododendron ponticum L. | United Kingdom | | 3 | 12E0100108 ** |
| 26 | 53239 | 12E0100124 | 'Madame Linden' | Rhododendron hybr. | Germany | | 3 | 12E0100124 ** |
| 27 | 53240 | 12E0100125 | 'Doctor V. H. Rutgers' | Rhododendron hybr. | Netherlands | | 3 | 12E0100125 ** |
| 28 | 53243 | 12E0100128 | 'Effner' | Rhododendron hybr. | Germany | | 3 | 12E0100128 ** |
| 29 | 53244 | 12E0100129 | 'Eidam' | Rhododendron brachycarpum D. Don ex G. Don | Germany | | 3 | 12E0100129 ** |
| 30 | 53246 | 12E0100131 | 'Emma' | Rhododendron catawbiense Michx. | Germany | | 3 | 12E0100131 ** |
| 31 | 53252 | 12E0100137 | 'Mount Everest' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100137 ** |
| 32 | 53277 | 12E0100162 | 'Humboldt' | Rhododendron catawbiense Michx. | Germany | | 3 | 12E0100162 ** |
| 33 | 53280 | 12E0100165 | 'Ibsen' | Rhododendron smirnowii Trautv. | unknown | | 3 | 12E0100165 ** |
| 34 | 53289 | 12E0100174 | 'Midsummer' | Rhododendron maximum L. | United Kingdom | | 3 | 12E0100174 ** |
| 35 | 53294 | 12E0100179 | 'Lord Fairhaven' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100179 ** |
| 36 | 53296 | 12E0100181 | 'Anilin' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100181 ** |
| 37 | 53298 | 12E0100183 | 'Bambola' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100183 ** |
| 38 | 53299 | 12E0100184 | 'Barmstedt' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100184 ** |
| 39 | 53301 | 12E0100186 | 'Blurettia' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100186 ** |
| 40 | 53304 | 12E0100189 | 'Daniela' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100189 ** |
| 41 | 53306 | 12E0100191 | 'Fantastica' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100191 ** |
| 42 | 53311 | 12E0100196 | 'Jacksonii' | Rhododendron caucasicum Pall. | unknown | | 3 | 12E0100196 ** |
| 43 | 53313 | 12E0100198 | 'Kantilene' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100198 ** |
| 44 | 53315 | 12E0100200 | 'Lamentosa' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100200 ** |
| 45 | 53320 | 12E0100205 | 'Mims' | Rhododendron catawbiense Michx. | Germany | | 3 | 12E0100205 ** |
| 46 | 53322 | 12E0100207 | 'Mrs P. den Ouden' | Rhododendron hybr. | Netherlands | | 3 | 12E0100207 ** |
| 47 | 53326 | 12E0100211 | 'Oudijk's Sensation' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 3 | 12E0100211 ** |
| 48 | 53330 | 12E0100215 | 'Hachmann's Porzellan' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100215 ** |
| 49 | 53336 | 12E0100221 | 'Renata' | Rhododendron hybr. | Germany | | 3 | 12E0100221 ** |
| 50 | 53338 | 12E0100223 | 'Roseum Elegans' | Rhododendron catawbiense Michx. | United Kingdom | | 3 | 12E0100223 ** |
| 51 | 53340 | 12E0100225 | 'Hachmann's Rosita' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100225 ** |
| 52 | 53343 | 12E0100228 | 'Schneekrone' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100228 ** |
| 53 | 53347 | 12E0100232 | 'Sonatine' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100232 ** |
| 54 | 53349 | 12E0100234 | 'Scarlet Wonder' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 3 | 12E0100234 ** |
| 55 | 53350 | 12E0100235 | 'Brigitte' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 3 | 12E0100235 ** |
| 56 | 53353 | 12E0100238 | 'August Lamken' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 3 | 12E0100238 ** |
| 57 | 53355 | 12E0100240 | 'Hachmann's Brasilia' | Rhododendron wardii W. W. Sm. | Germany | | 3 | 12E0100240 ** |
| 58 | 53356 | 12E0100241 | 'Catharine van Tol' | Rhododendron catawbiense Michx. | Netherlands | | 3 | 12E0100241 ** |
| 59 | 53357 | 12E0100242 | 'Elisabeth Hobbie' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 3 | 12E0100242 ** |
| 60 | 53363 | 12E0100248 | 'Bad Eilsen' | Rhododendron forrestii Balf. f. ex Diels subsp. forrestii | Germany | | 3 | 12E0100248 ** |
| 61 | 53365 | 12E0100250 | 'Bibber' | Rhododendron catawbiense Michx. | Germany | | 3 | 12E0100250 ** |
| 62 | 53368 | 12E0100253 | 'Julischka' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100253 ** |
| 63 | 53373 | 12E0100258 | 'Toucan' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100258 ** |
| 64 | 53376 | 12E0100261 | 'Margret' | Rhododendron smirnowii Trautv. | Germany | | 3 | 12E0100261 ** |
| 65 | 53377 | 12E0100262 | 'Obergaertner Robenek' | Rhododendron hybr. | Germany | | 3 | 12E0100262 ** |
| 66 | 53379 | 12E0100264 | 'Hachmann's Ornament' | Rhododendron hybr. | Germany | | 3 | 12E0100264 ** |
| 67 | 53382 | 12E0100267 | 'Pink Cherub' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 3 | 12E0100267 ** |
| 68 | 53387 | 12E0100272 | 'Hachmann's Rosarka' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 3 | 12E0100272 ** |
| 69 | 53388 | 12E0100273 | 'Roselyn' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 3 | 12E0100273 ** |
| 70 | 53392 | 12E0100277 | 'Stadt Essen' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 3 | 12E0100277 ** |
| 71 | 53395 | 12E0100280 | 'Vorwerk Abendsonne' | Rhododendron hybr. | Germany | | 3 | 12E0100280 ** |
| 72 | 53397 | 12E0100282 | 'Admiral Vanessa' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | Germany | | 3 | 12E0100282 ** |
| 73 | 53414 | 12E0100299 | 'Hachmann's Constanze' | Rhododendron hybr. | Germany | | 3 | 12E0100299 ** |
| 74 | 53422 | 12E0100307 | 'Scintillation' | Rhododendron fortunei Lindl. subsp. fortunei | United States | | 3 | 12E0100307 ** |
| 75 | 53429 | 12E0100314 | 'Persil' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100314 ** |
| 76 | 53430 | 12E0100315 | 'Ben Moseley' | Rhododendron fortunei Lindl. subsp. fortunei | United States | | 3 | 12E0100315 ** |
| 77 | 53431 | 12E0100316 | 'Cornelia Schroeder' | Rhododendron hybr. | Germany | | 3 | 12E0100316 ** |
| 78 | 53438 | 12E0100323 | 'Bruns Schneewittchen' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 3 | 12E0100323 ** |
| 79 | 53439 | 12E0100324 | 'Ursula Seidel' | Rhododendron hybr. | Germany | | 3 | 12E0100324 ** |
| 80 | 53449 | 12E0100334 | 'Ariane' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 3 | 12E0100334 ** |
| 81 | 53452 | 12E0100337 | 'Ovation' | Rhododendron haematodes Franch. | United Kingdom | | 3 | 12E0100337 ** |
| 82 | 53453 | 12E0100338 | 'Odessa' | Rhododendron smirnowii Trautv. | unknown | | 3 | 12E0100338 ** |
| 83 | 53456 | 12E0100341 | 'Berliner Liebe' | Rhododendron insigne Hemsl. & E. H. Wilson | Germany | | 3 | 12E0100341 ** |
| 84 | 53458 | 12E0100343 | 'Belkanto' | Rhododendron hybr. | Germany | | 3 | 12E0100343 ** |
| 85 | 53463 | 12E0100348 | 'Polarnacht' | Rhododendron hybr. | Germany | | 3 | 12E0100348 ** |
| 86 | 53469 | 12E0100354 | 'Hachmann's Diadem' | Rhododendron hybr. | Germany | | 3 | 12E0100354 ** |
| 87 | 53470 | 12E0100355 | 'Hachmann's Marlis' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100355 ** |
| 88 | 53471 | 12E0100356 | 'Nicoletta' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100356 ** |
| 89 | 53472 | 12E0100357 | 'Konsonanz' | Rhododendron hybr. | Germany | | 3 | 12E0100357 ** |
| 90 | 53473 | 12E0100358 | 'Puccini' | Rhododendron hybr. | Germany | | 3 | 12E0100358 ** |
| 91 | 53475 | 12E0100360 | 'Malwine' | Rhododendron hybr. | Germany | | 3 | 12E0100360 ** |
| 92 | 53476 | 12E0100361 | 'Sonare' | Rhododendron hybr. | Germany | | 3 | 12E0100361 ** |
| 93 | 53477 | 12E0100362 | 'Morgenrot' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100362 ** |
| 94 | 53478 | 12E0100363 | 'Clivia' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100363 ** |
| 95 | 53481 | 12E0100366 | 'Eggert Rohwer' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100366 ** |
| 96 | 53484 | 12E0100369 | 'Sylphides' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100369 ** |
| 97 | 53491 | 12E0100376 | 'Mrs R. S. Holford' | Rhododendron catawbiense Michx. | United Kingdom | | 3 | 12E0100376 ** |
| 98 | 53496 | 12E0100381 | 'James Burchett' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | United Kingdom | | 3 | 12E0100381 ** |
| 99 | 53502 | 12E0100387 | 'Berlin' | Rhododendron williamsianum Rehder & E. H. Wilson | Germany | | 3 | 12E0100387 ** |
| 100 | 53503 | 12E0100388 | 'Bertha' | Rhododendron catawbiense Michx. | Germany | | 3 | 12E0100388 ** |
| 101 | 53506 | 12E0100391 | 'Blue Tit Magor' | Rhododendron impeditum Balf. f. & W. W. Sm. | United Kingdom | | 3 | 12E0100391 ** |
| 102 | 53507 | 12E0100392 | 'Bluebird' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100392 ** |
| 103 | 53508 | 12E0100393 | 'Buketta' | Rhododendron hybr. | Germany | | 3 | 12E0100393 ** |
| 104 | 53513 | 12E0100398 | 'Schneegold' | Rhododendron hybr. | Germany | | 3 | 12E0100398 ** |
| 105 | 53517 | 12E0100402 | 'Edelweiss' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100402 ** |
| 106 | 53540 | 12E0100425 | 'Radiant' | Rhododendron hybr. | Netherlands | | 3 | 12E0100425 ** |
| 107 | 53541 | 12E0100426 | 'Ken Janeck' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United States | | 3 | 12E0100426 ** |
| 108 | 53545 | 12E0100430 | 'Ladybird' | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | United Kingdom | | 3 | 12E0100430 ** |
| 109 | 53550 | 12E0100435 | 'Silber' | Rhododendron makinoi Tagg ex Nakai | Germany | | 3 | 12E0100435 ** |
| 110 | 53553 | 12E0100438 | 'Mrs T. H. Lowinsky' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100438 ** |
| 111 | 53556 | 12E0100441 | 'Nofretete' | Rhododendron insigne Hemsl. & E. H. Wilson | United Kingdom | | 3 | 12E0100441 ** |
| 112 | 53560 | 12E0100445 | 'Silver Slipper' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100445 ** |
| 113 | 53566 | 12E0100451 | 'Roland' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100451 ** |
| 114 | 53568 | 12E0100453 | 'Hachmann's Rosenelfe' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | Germany | | 3 | 12E0100453 ** |
| 115 | 53570 | 12E0100455 | 'Schlaraffia' | Rhododendron hybr. | unknown | | 3 | 12E0100455 ** |
| 116 | 53573 | 12E0100458 | 'Silver Lady' | Rhododendron hybr. | Germany | | 3 | 12E0100458 ** |
| 117 | 53574 | 12E0100459 | 'Sneezy' | Rhododendron degronianum Carrière subsp. yakushimanum (Nakai) H. Hara var. yakushimanum (Nakai) Kitam. | United Kingdom | | 3 | 12E0100459 ** |
| 118 | 53596 | 12E0100481 | 'Glowing Embers' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100481 ** |
| 119 | 53598 | 12E0100483 | 'Golden Flare' | Rhododendron hybr. | Netherlands | | 3 | 12E0100483 ** |
| 120 | 53599 | 12E0100484 | 'Golden Sunset' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100484 ** |
| 121 | 53603 | 12E0100488 | 'Homebush' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100488 ** |
| 122 | 53605 | 12E0100490 | 'Klondyke' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100490 ** |
| 123 | 53613 | 12E0100498 | 'Blaauw's Pink' | Rhododendron hybr. | unknown | | 3 | 12E0100498 ** |
| 124 | 53614 | 12E0100499 | 'Spaetlese' | Rhododendron hybr. | unknown | | 3 | 12E0100499 ** |
| 125 | 53632 | 12E0100517 | 'Duque de San Lucar' | Rhododendron hybr. | unknown | | 3 | 12E0100517 ** |
| 126 | 53636 | 12E0100521 | 'Rauschenstein' | Rhododendron kiusianum Makino | *German Democratic Republic | | 3 | 12E0100521 ** |
| 127 | 53650 | 12E0100536 | 'Gloria Mundi' | Rhododendron hybr. | unknown | | 3 | 12E0100536 ** |
| 128 | 53652 | 12E0100538 | 'Goldflimmer' | Rhododendron hybr. | unknown | | 3 | 12E0100538 ** |
| 129 | 53663 | 12E0100549 | 'Karolina Svetla' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 3 | 12E0100549 ** |
| 130 | 53664 | 12E0100550 | 'Bozena Nemcova' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 3 | 12E0100550 ** |
| 131 | 53666 | 12E0100552 | 'Pavla Kytlicova' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czech Republic | | 3 | 12E0100552 ** |
| 132 | 53667 | 12E0100553 | 'Fuego' | Rhododendron haematodes Franch. | Germany | | 3 | 12E0100553 ** |
| 133 | 53675 | 12E0100561 | 'Vuyk's Rosyred' | Rhododendron hybr. | unknown | | 3 | 12E0100561 ** |
| 134 | 53677 | 12E0100563 | 'Audia' | Rhododendron impeditum Balf. f. & W. W. Sm. | unknown | | 3 | 12E0100563 ** |
| 135 | 53679 | 12E0100565 | 'Buchlovice' | Rhododendron impeditum Balf. f. & W. W. Sm. | Czechoslovakia | | 3 | 12E0100565 ** |
| 136 | 53685 | 12E0100604 | 'Profesor Jersov' | Rhododendron obtusum (Lindl.) Planch. | Czechoslovakia | | 3 | 12E0100604 ** |
| 137 | 53693 | 12E0100612 | 'Ledikanense' | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | Czechoslovakia | | 3 | 12E0100612 ** |
| 138 | 53695 | 12E0100702 | 'Largo' | Rhododendron forrestii Balf. f. ex Diels | Czechoslovakia | | 3 | 12E0100702 ** |
| 139 | 53697 | 12E0100801 | 'Sychrov' | Rhododendron impeditum Balf. f. & W. W. Sm. | Czechoslovakia | | 3 | 12E0100801 ** |
| 140 | 53702 | 12E0100806 | 'Hachmann's Mikado' | Rhododendron hybr. | Germany | | 3 | 12E0100806 ** |
| 141 | 53741 | 12E0100845 | 'Profesor Scholz' | Rhododendron dichroanthum Diels subsp. scyphocalyx (Balf. f. & Forrest) Cowan | Czech Republic | | 3 | 12E0100845 ** |
| 142 | 53748 | 12E0100852 | 'Bouzov' | Rhododendron decorum Franch. | Czech Republic | | 3 | 12E0100852 ** |
| 143 | 53750 | 12E0100854 | 'Wryneck' | Rhododendron hybr. | United Kingdom | | 3 | 12E0100854 ** |
| 144 | 53768 | 12E0100872 | 'Osmar' | Rhododendron williamsianum Rehder & E. H. Wilson | United Kingdom | | 3 | 12E0100872 ** |