| Carex x helvola | GB, VC92 South Aberdeenshire, Lochnagar | William Andrew Shoolbred | Botanical Society & Exchange Club of The British Isles William Andrew Shoolbred William Charles Barton | 21/7/1906 | BM |
| Euphrasia nemorosa | GB, VC62 North-east Yorkshire, Knayton | Catherine Muriel Rob | Botanical Society & Exchange Club of The British Isles Catherine Muriel Rob Eric Lister Swann | 2/8/1946 | BR |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Priddy | James Walter White | Botanical Society & Exchange Club of The British Isles Joseph Edward Little | 24/9/1925 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC70 Cumberland, Drigg | Robert Hardy Williamson | Botanical Society & Exchange Club of The British Isles George Claridge Druce Joseph Edward Little | 9/1924 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC17 Surrey, Earlswood Common | Job Edward Lousley | Botanical Society & Exchange Club of The British Isles | 8/9/1929 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC16 West Kent, Medway Valley Cultivated GB, VC17 Surrey, Kew Cultivated | J Fraser | Botanical Society & Exchange Club of The British Isles | 30/8/1924 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC19 North Essex, Tiptree Heath | George Charles Brown | Botanical Society & Exchange Club of The British Isles | 1/9/1912 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC40 Shropshire, Meole Brace | James Cosmo Melvill | Botanical Society & Exchange Club of The British Isles James Cosmo Melvill | 17/8/1916 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC40 Shropshire, Shrewsbury | | Botanical Society & Exchange Club of The British Isles Joseph Edward Little | 24/8/1917 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC83 Midlothian, Banlaw | Robert Stephen Adamson | Botanical Society & Exchange Club of The British Isles Joseph Edward Little | 26/8/1913 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC33 East Gloucestershire, Compton Abdale | Harry Joseph Riddelsdell | Botanical Society & Exchange Club of The British Isles Charles Edgar Salmon George Claridge Druce Joseph Edward Little | 11/9/1919 | CGE |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC56 Nottinghamshire, Clipstone | R Bulley | Botanical Society & Exchange Club of The British Isles | 8/1927 | CGE |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC90 Angus, Roscobie, Forfar | R & M Corstorphine | Botanical Society & Exchange Club of The British Isles Joseph Edward Little | 4/10/1913 | CGE |
| Salix aurita x repens = S. x ambigua | GB, VC33 East Gloucestershire, Todenham | Harry Joseph Riddelsdell | Botanical Society & Exchange Club of The British Isles | 5/8/1915 | CGE |
| Salix caprea x cinerea = S. x reichardtii | GB, VC29 Cambridgeshire, Langley Wood | Edmund Frederic Warburg | Botanical Society & Exchange Club of The British Isles | 9/6/1932 | CGE |
| Salix caprea x cinerea = S. x reichardtii | GB, VC59 South Lancashire, Walton Cultivated | James Alfred Wheldon | Botanical Society & Exchange Club of The British Isles | 4/1916 8/1916 | CGE |
| Salix pentandra x fragilis = S. x meyeriana | GB, VC47 Montgomeryshire, Glyn Cogan | Henry Haselfoot Haines | Botanical Society & Exchange Club of The British Isles | 4/1944 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Berechurch | George Charles Brown | Botanical Society & Exchange Club of The British Isles Joseph Edward Little | 21/5/1923 to 14/8/1923 | CGE |
| Carex muricata | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Society & Exchange Club of The British Isles | 1/6/1929 | E |
| Carex spicata | GB, VC23 Oxfordshire, Beckley | John Frederick Gustav Chapple | Botanical Society & Exchange Club of The British Isles Druce Herbarium, Oxford | 14/6/1932 | E |
| Carex vulpina | GB, VC23 Oxfordshire, Otmoor | John Frederick Gustav Chapple | Botanical Society & Exchange Club of The British Isles Druce Herbarium, Oxford Martin F Gardner & Sabina G Knees | 1/8/1936 1/8/1946 | E |
| Ballota nigra var. borealis | GB, VC41 Glamorganshire, Kenfig | George Claridge Druce | Botanical Society & Exchange Club of The British Isles Charles Edward Britton | 8/1927 | K |
| Bupleurum tenuissimum | GB, VC18 South Essex, Burnham on Crouch | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles Edward Charles Wallace | 12/9/1932 | K |
| Callitriche autumnalis | GB, VC112 Shetland, Spiggie | George Claridge Druce | Botanical Society & Exchange Club of The British Isles Charles Edward Britton | 7/1924 | K |
| Callitriche intermedia | GB, VC70 Cumberland, Seathwaite | Clara Winsome Muirhead | Botanical Society & Exchange Club of The British Isles Carlisle Museum Herbarium | 17/6/1946 | K |
| Callitriche platycarpa | GB, VC23 Oxfordshire, Otmoor | John Frederick Gustav Chapple | Botanical Society & Exchange Club of The British Isles John Frederick Gustav Chapple | 4/5/1937 | K |
| Callitriche truncata | GB, VC13 West Sussex, Burpham | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 14/6/1936 | K |
| Callitriche truncata | GB, VC56 Nottinghamshire, Wiseton,Drakeholes | William Arthur Sledge | Botanical Society & Exchange Club of The British Isles William Arthur Sledge | 2/8/1945 | K |
| Digitalis lanata | GB, VC16 West Kent, Dartford | Job Edward Lousley | Botanical Society & Exchange Club of The British Isles | 4/8/1947 | K |
| Festuca arundinacea | GB, VC6 North Somerset, Ashton Gate | Ida Mary Roper | Botanical Society & Exchange Club of The British Isles Ida Mary Roper | 13/7/1928 | K |
| Festuca arundinacea | GB, VC27 East Norfolk, Burgh Saint Margaret | Rowland John Burdon | Botanical Society & Exchange Club of The British Isles Charles Edward Britton | 9/7/1928 | K |
| Festuca arundinacea | GB, VC39 Staffordshire, Milton | Eric Smoothy Edees | Botanical Society & Exchange Club of The British Isles | 11/7/1936 | K |
| Galeopsis bifida | GB, VC17 Surrey, Burgh Heath | Charles Edward Britton | Botanical Society & Exchange Club of The British Isles Charles Edward Britton | 19/8/1928 | K |
| Galeopsis bifida | GB, VC48 Merionethshire, Maentwrog | William Charles Barton | Botanical Society & Exchange Club of The British Isles Charles Edward Britton William Charles Barton | | K |
| Glechoma hederacea | GB, VC6 North Somerset, Wraxall | Ida Mary Roper | Botanical Society & Exchange Club of The British Isles Ida Mary Roper | 2/5/1928 | K |
| Glechoma hederacea | GB, VC23 Oxfordshire, Bloxham | Harry Joseph Riddelsdell | Botanical Society & Exchange Club of The British Isles Charles Edward Britton | 1/6/1925 | K |
| Hyssopus officinalis | GB, VC11 South Hampshire, Beaulieu Abbey | Spencer Henry Bickham | Botanical Society & Exchange Club of The British Isles Spencer Henry Bickham | 21/7/1919 | K |
| Kickxia spuria | GB, VC41 Glamorganshire, Porthcawl | Ethel Mancy Miles Thomas | Botanical Society & Exchange Club of The British Isles National Museum of Wales | 1934 | K |
| Lamium amplexicaule | GB, VC61 South-east Yorkshire, Hornsea | R Bulley | Botanical Society & Exchange Club of The British Isles Wollaton Hall Natural History Museum, Nottingham | 14/7/1938 | K |
| Lamium purpureum var. hybridum | GB, VC20 Hertfordshire, Great Wymondley | Joseph Edward Little | Botanical Society & Exchange Club of The British Isles | 2/6/1928 | K |