| 1853 |
B. xanthina crossed with B. hatacoa by Benedict Roezl. Large leaves of B. xanthina and the silver color of B. hatacoa. |
| 1857 |
B. xanthina crossed with B. laciliata in Belgium. |
| B. xanthina x B. hatacoa crossed with B. rex by Jean Linden in Belgium |
|
| William Rollison in Springfield Nursey, Upper Tooting, UK acquires Linden’s tick plants with exclusive distribution rights for England. |
|
| 1858 |
Ambroise Verschaffelt crosses B. griffithii with B. 'Xanthina Marmorea' creating B. 'Mme.Wagner'. William Rollison in Springfield Nursey, Upper Tooting, UK, crosses B. Rex with B. splendida (B. robusta) creating B. 'Grandes' |
| 1861 |
L. de Smet also crosses also B. rex with B. splendida creating B. 'Splendidissima' and B. 'Inimitibles' |
| 1866 |
B. ‘Fireflush’ French hybrid from Rougler with long red hairs from B. robusta. |
| note: it is listed as having B. muricata and B. annulata as a female and male parent respectively. |
|
| 1879 |
Jacob Makay also crosses also B. rex with B. splendida creating B. 'Louise Chretian' |
| 1883 |
Nemeczek in Hungary produces B. ‘Spirilis Comtesse Louise Erdody’ one of the first spiral/helix leafed hybrids. |
| 1886 |
Jacob Makay also crosses B. rex with B. splendida again creating B. 'Lucie Closson'" |
| 1889 |
Not yet done with this combination Jacob Makay crosses B. rex with B. splendida yet again creating B. 'Louise Closson'" |
| 1876 |
Forbel in Zurich, Switzerland crosses B. rex with B. imperialis creating B. 'Otto Foster' & B. smargadina with B. rex creating B. 'Mironda' |
| 1878 |
DeBruant, in Potiers, France, crosses B. rex with B. discolor creating B. 'Abel Carriere' |
| 1880 |
DeBruant, in Potiers, France, crosses B. rex with B. discolor creating B. 'Ed Pynaerd' and a total of 18 hybrids of this cross. |
| 1885 |
DeBruant, in Potiers, France, crosses B. rex with B. diadema creating B. 'Lesoudi' and B. 'Clementine' |
| 1885 |
M. Lionnet (working in Frane for Arthur Mallet) crosses B. rex with an earlier hybrid B. subpeltata to create the Mallet series; including in this year, B. 'Naomi Mallet' |
| Nb. Tebbit writes that the Mallet series was created by crossing a Rex cultorum with B.incarnata |
|
| 1886 |
M. Lionnet (working in Frane for Arthur Mallet) crosses B. rex with an earlier hybrid B. subpeltata to create the Mallet series; including in this year, B. 'Arthur Mallet'. |
| Nb. Tebbit writes that the Mallet series was created by crossing a Rex cultorum with B.incarnata |
|
| 1888 |
De Lyon, also crosses B. rex with B. diadema creating B. 'Arien Schmidt'. A nursery catalog from Nancy, France The Crousse Horticulteur, lists 67 B. rex varieties. |
| 1889 |
Lionnet (working in Frane for Arthur Mallet) crosses B. rex with an earlier hybrid B. subpeltata to create the Mallet series; including in this year, B. 'Madame Hardy', B. 'Monsieur Hardy' and B. 'Madame Leonnet' ('Madame Leonnet' is now more commonly known as 'Tingley Mallet'). |
| Nb. Tebbit writes that the Mallet series was created by crossing a Rex cultorum with B.incarnata |
|
| 1890 |
Veitch also crosses B. rex and B. subpeltata to create B. 'Margaritacea' |
| 1891 |
Sanders crosses B. decora with unidentified B. rex forms creating B. 'Gemmata', B. 'Conspicua', and B. 'Punctatissima' |
| 1894 |
Sanders & Co. crosses B. rex with B. socotrana to create B. 'Winter Queen' |
| 1895 |
By this date, there are some 45 named hybrids of the B. rex x B. discolor cross, 26 named hybrids of the B. Rex with B. diadema cross |
| 1900 |
By now, 31 named B. rex forms x B. decora hybrids had been produced |
| 1903 |
Adolph Van den Heedee lists 218 named rex begonia cultivars in his publication Les Begonia. The company, Sanders of St. Albans, England crosses B. cathayana (B. bowringiana) with unnamed rex varieties creating B. 'Our Queen', B. 'Mrs. H. J. Moon', and B. 'His Majesty'. These cultivars were shown at the International Exposition in Ghent Belgium, in April 1903. |
| 1904 |
B. cathayana (B. bowringiana) crossed with unnamed rex varieties to create, B. 'Mme. Sanders' |