| Mentha arvensis x spicata = M. x gracilis | GB, VC3 South Devon, Staverton | | University of Exeter | 6/8/1935 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC4 North Devon, Belstone | | University of Exeter | 12/7/1937 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC4 North Devon, Belstone | Arthur Langford Still | University of Exeter | 29/7/1937 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC4 North Devon, Sticklepath | | University of Exeter | 9/7/1937 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC83 Midlothian, Haughhead | | University of Exeter | 29/9/1934 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC83 Midlothian, Loganbank | | University of Exeter | 13/10/1934 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC50,VC51, Moel Fammau | M E M Atkinson | | 16/8/1959 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC59 South Lancashire, Whalley Range | Charles Bailey | | 11/8/1900 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC78 Peeblesshire, Peebles | Charles Bailey | Botanical Exchange Club of The British Isles Charles Bailey | 27/9/1898 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC17 Surrey, Kew Cultivated | John Gilbert Baker | John Gilbert Baker | 8/1866 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC62 North-east Yorkshire, Coxwold | John Gilbert Baker | IRGMA | 7/1855 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC62 North-east Yorkshire, Kilvington | John Gilbert Baker | IRGMA | | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC15 East Kent, Maidstone | Frederic Barham | | 8/1851 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC17 Surrey, Chiddingfold | William Hadden Beeby | | 21/8/1885 | LIV |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC57 Derbyshire, Wirksworth | William Bell | | 7/7/1906 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, Cornwall GB, VC17 Surrey, Croydon Cultivated | Arthur Bennett | Botanical Exchange Club of The British Isles | | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC17 Surrey, Croydon Cultivated | Arthur Bennett | | 1886 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC31 Huntingdonshire, Sawtry | Arthur Bennett | IRGMA | 20/4/1885 3/9/1885 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC36 Herefordshire, Ledbury Cultivated | Spencer Henry Bickham | Spencer Henry Bickham | 20/8/1909 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC36 Herefordshire, Underdown, Ledbury Cultivated | Spencer Henry Bickham | Botanical Exchange Club of The British Isles Spencer Henry Bickham | 6/8/1900 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC58 Cheshire, Macclesfield | Richard Francis Towndrow Spencer Henry Bickham | Watson Botanical Exchange Club IRGMA Spencer Henry Bickham | 6/4/1905 8/8/1905 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC43 Radnorshire, Newbridge on Wye | M Hildred Bigwood | M Hildred Bigwood | 27/7/1976 | LIV |
| Salix aurita x repens = S. x ambigua | GB, VC49 Caernarvonshire, Great Orme | M Hildred Bigwood | M Hildred Bigwood | 4/1958 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC50 Denbighshire, Llangollen | M Hildred Bigwood | M Hildred Bigwood | 28/7/1954 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC50 Denbighshire, Llangollen | M Hildred Bigwood | | 4/9/1955 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC50 Denbighshire, Llangollen | M Hildred Bigwood | | 4/9/1955 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC85 Fifeshire, Balmuto Cultivated | John Thomas Irvine Boswell-Syme | | | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC57 Derbyshire, Bakewell | Bowman | | 1833 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC3 South Devon, Plymstock | Thomas Richard Archer Briggs | | 27/9/1876 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC17 Surrey, Wimbledon Common | Charles Edward Britton | Charles Edward Britton | 8/1911 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire | Henry Bromwich | | 9/1886 | LIV |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC38 Warwickshire, Chesterton | Henry Bromwich | Botanical Exchange Club of The British Isles | 9/1898 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley Cultivated | Henry Bromwich | Botanical Exchange Club of The British Isles | 9/1886 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles | 9/1886 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC80 Roxburghshire, Kelso | Andrew Brotherston | IRGMA | 9/4/1876 to 9/1876 | LIV |
| Salix aurita x repens = S. x ambigua | GB, VC80 Roxburghshire, Primside Bog | Andrew Brotherston | IRGMA | 5/1878 8/1878 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC58 Cheshire, Shotwick | R Brown | | 9/1884 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC58 Cheshire, Broxton | Robert Brown | | 28/9/1874 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC58 Cheshire, Capenhurst | Robert Brown | | 11/9/1875 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC58 Cheshire, Mollington | Robert Brown | | 19/8/1878 | LIV |