| Mentha aquatica x spicata = M. x piperita | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1948 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1948 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1948 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1948 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1947 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1947 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1947 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1947 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1948 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1948 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC4 North Devon, Lynmouth | Spencer Henry Bickham | Spencer Henry Bickham | 18/9/1902 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC4 North Devon, Lynton | Spencer Henry Bickham | Spencer Henry Bickham | 17/9/1902 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC5 South Somerset, Bossington | Edward Shearburn Marshall | | 14/9/1907 | CGE |
| Mentha piperita var. piperita | GB, VC5 South Somerset, Bossington | Edward Shearburn Marshall | | 1/9/1907 | CGE |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC5 South Somerset, Bossington | Edward Shearburn Marshall | Edward Francis Linton | 14/9/1907 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC5 South Somerset, Hestercombe | Edward Shearburn Marshall | | 16/8/1906 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC5 South Somerset, Kings Brompton | Edward Shearburn Marshall | Spencer Henry Bickham | 9/9/1907 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC5 South Somerset, Minehead | Spencer Henry Bickham | Spencer Henry Bickham | 3/9/1895 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC5 South Somerset, Minehead | Henry Oxley Stephens | | 1841 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC5 South Somerset, Minehead | Edward Shearburn Marshall | Edward Francis Linton | 20/9/1906 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC5 South Somerset, Monkton Heathfield | Edward Shearburn Marshall | Spencer Henry Bickham | 16/8/1906 | CGE |
| Salix caprea x cinerea = S. x reichardtii | GB, VC5 South Somerset, Simonsbath | Edward Shearburn Marshall | | 30/8/1918 | CGE |
| Salix cinerea x aurita = S. x multinervis | GB, VC5 South Somerset, Simonsbath | Edward Shearburn Marshall | | 29/8/1918 | CGE |
| Mentha spicata x longifolia = M. x villosonervata | GB, VC5 South Somerset, West Monkton Cultivated | Edward Shearburn Marshall | Edward Shearburn Marshall Spencer Henry Bickham | 16/8/1907 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC5 South Somerset, Wiveliscombe | Edward Shearburn Marshall | | 12/8/1916 | CGE |
| Mentha spicata x suaveolens = M. x villosa | GB, VC6 North Somerset, Batcombe | Edward Shearburn Marshall | | 18/8/1913 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC6 North Somerset, Bath | Charles Cardale Babington | John Stevens Henslow | 9/1833 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC6 North Somerset, Claverton Wood | | Charles Cardale Babington | 9/1833 | CGE |
| Salix cinerea x aurita = S. x multinervis | GB, VC6 North Somerset, Clevedon | Ida Mary Roper | Watson Botanical Exchange Club Ida Mary Roper | 25/3/1913 24/9/1913 | CGE |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC6 North Somerset, Clifton Cultivated | James Walter White | Watson Botanical Exchange Club James Walter White Spencer Henry Bickham | 14/8/1908 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC6 North Somerset, Compton Dando | James Walter White | Spencer Henry Bickham | 1/9/1925 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC6 North Somerset, Compton Dando | James Walter White | Joseph Edward Little | 1/9/1925 | CGE |
| Salix triandra x viminalis = S. x mollissima | GB, VC6 North Somerset, Corston | Ida Mary Roper | Ida Mary Roper | 24/4/1915 | CGE |
| Salix triandra x viminalis = S. x mollissima | GB, VC6 North Somerset, Corston | Ida Mary Roper | Ida Mary Roper | 16/8/1915 | CGE |
| Salix caprea x cinerea = S. x reichardtii | GB, VC6 North Somerset, Failand | Ida Mary Roper | Ida Mary Roper | 17/3/1925 | CGE |
| Salix fragilis x alba = S. x rubens | GB, VC6 North Somerset, Kenn | Ida Mary Roper | Watson Botanical Exchange Club Edward Francis Linton Ida Mary Roper Joseph Edward Little | 22/5/1915 to 17/8/1915 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Langridge | | Charles Cardale Babington | 8/1833 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Mendip Hills | James Walter White | | 16/9/1908 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Mendip Hills | James Walter White | | 16/9/1908 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Newton Saint Loe | Ida Mary Roper | Watson Botanical Exchange Club Spencer Henry Bickham | 13/9/1916 | CGE |