| Mentha longifolia | GB, VC12 North Hampshire, Hook | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles Edward Charles Wallace Charles Edward Britton | 9/9/1933 | SLBI |
| Callitriche truncata | GB, VC13 West Sussex, Burpham | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 14/6/1936 | K |
| Ulmus glabra subsp. montana | GB, VC17 Surrey, Betchworth | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 5/4/1942 10/5/1942 8/1942 | SLBI |
| Ulmus glabra subsp. montana | GB, VC17 Surrey, Betchworth | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 11/4/1942 10/5/1942 9/1942 | SLBI |
+ | Wolffia arrhiza | GB, VC17 Surrey, Burgh Heath | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 10/9/1937 | MANCH |
| Ulmus campestris | GB, VC17 Surrey, Ewell | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 5/4/1942 1/5/1942 8/1942 | SLBI |
| Carex otrubae x remota = C. x pseudoaxillaris | GB, VC17 Surrey, Newdigate | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles Edward Charles Wallace Patrick Martin Hall | 6/9/1933 | BM |
| Cirsium arvense | GB, VC17 Surrey, Nonsuch Park | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 23/8/1946 | SLBI |
| Cirsium arvense | GB, VC17 Surrey, Nonsuch Park | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 23/8/1946 | SLBI |
| Carex muricata subsp. pairae | GB, VC17 Surrey, West Horsley | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 28/6/1947 | SLBI |
| 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 |
| Bupleurum tenuissimum | GB, VC18 South Essex, Burnham on Crouch | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles Edward Charles Wallace Job Edward Lousley | 17/9/1932 | SLBI |
| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC64 Mid-west Yorkshire, Harewood | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles Job Edward Lousley | 3/8/1943 | SLBI |
| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC64 Mid-west Yorkshire, Newby | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 24/7/1943 | MANCH |
| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC64 Mid-west Yorkshire, Weeton | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 3/5/1943 | MANCH |
| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC64 Mid-west Yorkshire, Weston | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 3/8/1943 | MANCH |
| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC64 Mid-west Yorkshire, Weston | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 3/8/1943 | MANCH |
| Persicaria minor | GB, VC65 North-west Yorkshire, Kirklington | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 10/9/1944 | SLBI |
| Carex divulsa | GB, VC70 Cumberland, Keswick | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles Edward Charles Wallace | 20/7/1944 | SLBI |
| Luzula arcuata | GB, VC97 West Inverness-shire, Aonach Beag | Edward Charles Wallace Robert MacKechnie | Botanical Society & Exchange Club of The British Isles | 15/7/1936 | SLBI |
| Arbutus alpina | GB, VC97 West Inverness-shire, Glen Spean | Edward Charles Wallace Robert MacKechnie | Botanical Society & Exchange Club of The British Isles | 13/7/1936 | SLBI |
| Carex dioica | GB, VC98 Argyllshire, Bridge of Orchy | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 21/6/1940 | BM |
| Mentha longifolia | GB, VC13 West Sussex, Amberley | Edward Charles Wallace | Botanical Society of The British Isles | 8/8/1953 | SLBI |
| Mentha gentilis var. varigata | GB, VC13 West Sussex, Bexley Hill | Edward Charles Wallace | Botanical Society of The British Isles | 22/8/1948 | K |
| Mentha arvensis x spicata = M. x gracilis | GB, VC13 West Sussex, Bexley Hill | Edward Charles Wallace | Botanical Society of The British Isles | 22/8/1948 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC14 East Sussex, Danehill | Arthur Langford Still | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford Edward Charles Wallace | 8/9/1926 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC17 Surrey, Leith Hill | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles Druce Herbarium, Oxford Edward Charles Wallace | 6/8/1934 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC17 Surrey, Sutton Cultivated | Edward Charles Wallace | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford | 9/1937 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC21 Middlesex, Stanmore Common | Arthur Langford Still | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford Edward Charles Wallace | 19/9/1936 | OXF |
| Epilobium alsinifolium | GB, VC92 South Aberdeenshire, Loch Callater | Robert MacKechnie | London Botanical Exchange Club Edward Charles Wallace Harold Stuart Thompson | 11/7/1933 | BIRM |
| Carex contigua | GB, VC9 Dorset, Studland | Arthur Langford Still | National Museum of Wales Edward Charles Wallace Job Edward Lousley | 8/6/1933 | SLBI |
| Carex lachenalii x curta = C. x helvola | GB, VC96 East Inverness-shire, Corrie Sneachda | William Andrew Shoolbred | National Museum of Wales Watson Botanical Exchange Club Edward Charles Wallace Harold Stuart Thompson William Andrew Shoolbred | 8/8/1898 | BIRM |
| Mentha suaveolens x longifolia = M. x rotundifolia var. webberi | GB, VC99 Dunbartonshire, Arrochar | Edward Charles Wallace Robert MacKechnie | Reading University Job Edward Lousley | 8/5/1938 8/8/1938 | K |
| Mentha suaveolens x longifolia = M. x rotundifolia var. webberi | GB, VC100 Clyde Islands, Lamlash | Robert MacKechnie | Reading University Edward Charles Wallace Job Edward Lousley | 16/8/1934 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC17 Surrey, Holmwood Common | Edward Charles Wallace | RNG Edward Charles Wallace | 17/8/1932 | LIV |
| Carex lachenalii | GB, VC92 South Aberdeenshire, Ben Macdui, Loch Etchachan | Edward Charles Wallace | Botanical Exchange Club of The British Isles Royal Botanic Gardens, Kew | 11/7/1935 | E |
| Carex lachenalii | GB, VC92 South Aberdeenshire, Lochnagar | Edward Charles Wallace | Botanical Exchange Club of The British Isles Royal Botanic Gardens, Kew | 14/7/1935 | E |
| Salicornia dolichostachya | GB, VC3 South Devon, Axmouth | Edward Charles Wallace | Watson Botanical Exchange Club Edward Charles Wallace | 27/9/1933 | SLBI |
| Allium ursinum | GB, VC5 South Somerset, Dunster | Edward Charles Wallace | Watson Botanical Exchange Club | 9/7/1929 | SLBI |
| Jasione montana | GB, VC5 South Somerset, Porlock | Edward Charles Wallace | Watson Botanical Exchange Club Edward Charles Wallace | 11/7/1929 | SLBI |