| Salix fragilis x alba = S. x rubens | GB, VC6 North Somerset, Corston | David Fry | IRGMA | 30/5/1891 to 16/8/1891 | LIV |
| Salix fragilis x alba = S. x rubens | GB, VC6 North Somerset, Saltford | A Fry | IRGMA | 29/5/1891 24/8/1891 | LIV |
| Salix fragilis x triandra = S. x alopecuroides | GB, Somerset | James Walter White | Liverpool University IRGMA | 5/1887 6/1887 | LIV |
| Salix aurita x repens = S. x ambigua | GB, VC9 Dorset, Bournemouth Cultivated GB, VC90 Angus, Clova | Edward Francis Linton | IRGMA Set of British Willows | 4/1892 6/1895 | LIV |
| Salix fragilis x alba = S. x rubens | GB, VC9 Dorset, Bournemouth Cultivated GB, VC9 Dorset, Tarrant Keynston | Edward Francis Linton | IRGMA Edward Francis Linton | 29/4/1895 21/6/1895 | LIV |
| Salix fragilis x triandra = S. x alopecuroides | GB, VC9 Dorset, Bournemouth Cultivated GB, VC9 Dorset, Tarrant Keynston | Edward Francis Linton | IRGMA Set of British Willows | 7/5/1897 5/7/1897 | LIV |
| Salix fragilis x triandra = S. x alopecuroides | GB, VC9 Dorset, Kingston | Edward Francis Linton | IRGMA | 10/1890 | LIV |
| Salix fragilis x triandra = S. x alopecuroides | GB, VC9 Dorset, Kinson | Edward Francis Linton | IRGMA Set of British Willows | 13/4/1894 22/8/1894 | LIV |
| Salix fragilis x triandra = S. x alopecuroides | GB, VC9 Dorset, Kinson | Edward Francis Linton | IRGMA | 13/4/1894 24/8/1895 | LIV |
| Salix aurita x repens = S. x ambigua | GB, VC9 Dorset, Little Sea | Edward Francis Linton | IRGMA Edward Francis Linton | 4/7/1895 | LIV |
| Salix fragilis x alba = S. x rubens | GB, VC11 South Hampshire, Christchurch | William Richardson Linton | IRGMA | 4/5/1893 | LIV |
| Salix fragilis x alba = S. x rubens | GB, VC17 Surrey, Byfleet | Gertrude Foggitt | IRGMA Frederick William Holder | 21/5/1936 | LIV |
| Salix aurita x repens = S. x ambigua | GB, VC18 South Essex, Epping Forest | | IRGMA | 6/1883 to 4/10/1883 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC21 Middlesex, Finchley GB, VC21 Middlesex, Hendon | | IRGMA | 10/1883 5/4/1884 | LIV |
| Salix pentandra x fragilis = S. x meyeriana | GB, VC26 West Suffolk, Barton Mills | Thomas Jackson Foggitt | IRGMA Frederick William Holder | 13/7/1925 | LIV |
| Salix pentandra x fragilis = S. x meyeriana | GB, VC26 West Suffolk, Barton Mills | Thomas Jackson Foggitt | IRGMA Joseph Norman Frankland | 13/7/1928 | LIV |
| Salix cinerea x aurita = S. x multinervis | GB, VC26 West Suffolk, Hopton | | Liverpool University IRGMA | 10/4/1883 25/6/1883 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC26 West Suffolk, Market Weston | Edward Francis Linton | IRGMA | 11/4/1883 | LIV |
| Dryopteris dilatata | GB, VC27 East Norfolk, Cromer | G Gorton | IRGMA | 10/10/1972 | BON |
| Salix viminalis x caprea = S. x smithiana | GB, VC27 East Norfolk, Sprowston | | IRGMA | 22/9/1883 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC26 West Suffolk, Market Weston GB, VC27 East Norfolk, Sprowston Cultivated | Edward Francis Linton | IRGMA | 4/5/1887 29/9/1887 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC30 Bedfordshire, Turvey | | IRGMA | 24/4/1884 11/9/1884 | LIV |
| Salix cinerea x aurita = S. x multinervis | GB, VC31 Huntingdonshire, Holme Cultivated | William Richardson Linton | IRGMA William Richardson Linton | 5/1891 7/1891 | LIV |
| Salix cinerea x aurita = S. x multinervis | GB, VC31 Huntingdonshire, Holme Fen GB, VC9 Dorset, Bournemouth Cultivated | Edward Francis Linton | IRGMA Set of British Willows | 7/4/1894 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC31 Huntingdonshire, Sawtry | Arthur Bennett | IRGMA | 20/4/1885 3/9/1885 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC31 Huntingdonshire, Sawtry | | IRGMA | 20/4/1885 3/9/1885 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Ross | William Henry Purchas | IRGMA | 4/1852 31/7/1852 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Rudhall nr Ross-on-Wye | William Henry Purchas | IRGMA William Henry Purchas | 4/1852 30/6/1852 | LIV |
| Salix fragilis x triandra = S. x alopecuroides | GB, VC36 Herefordshire, Sellack | Augustin Ley | Botanical Exchange Club of The British Isles IRGMA | 5/1904 8/1904 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC38 Warwickshire, Kenilworth Chase | Henry Bromwich | Botanical Exchange Club of The British Isles IRGMA Henry Bromwich | 4/1881 9/1881 | LIV |
| Salix fragilis x triandra = S. x alopecuroides | GB, VC38 Warwickshire, Quinton Pool | Thomas Kirk | IRGMA | 4/1849 10/1852 | LIV |
| Salix fragilis x alba = S. x rubens | GB, VC38 Warwickshire, Warwick | John (Joannis) Fraser | Botanical Exchange Club of The British Isles IRGMA John (Joannis) Fraser | 5/1878 7/1878 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC38 Warwickshire, Wyken | Thomas Kirk | IRGMA | 25/4/1853 19/9/1853 | LIV |
| Salix cinerea x aurita = S. x multinervis | GB, VC39 Staffordshire, Biddulph | T Law | IRGMA William Hunt Painter | 5/1894 7/1894 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC40 Shropshire, Dawley | William Hunt Painter | Botanical Exchange Club of The British Isles IRGMA William Hunt Painter | 4/1894 7/1894 | LIV |
| Salix pentandra x fragilis = S. x meyeriana | GB, VC40 Shropshire, Hanwood | William Allport Leighton | IRGMA | 1842 | LIV |
| Salix fragilis x alba = S. x rubens | GB, VC40 Shropshire, Kemberton | William Hunt Painter | IRGMA William Hunt Painter | 7/1894 | LIV |
| Salix cinerea x aurita = S. x multinervis | GB, VC41 Glamorganshire, Swansea Cultivated | William Richardson Linton | IRGMA | 24/4/1894 7/8/1894 | LIV |
| Salix aurita x repens = S. x ambigua | GB, VC48 Merionethshire, Llanfair | William Richardson Linton | IRGMA | 13/8/1895 | LIV |
| Salix cinerea x aurita = S. x multinervis | GB, VC49 Caernarvonshire, Bangor | William Richardson Linton | IRGMA | 26/7/1892 | LIV |