| Carex otrubae | GB, VC4 North Devon, Tiverton | Arthur Langford Still | Job Edward Lousley | 24/6/1944 | SLBI |
| Eleocharis multicaulis | GB, Devon, Tiverton | Arthur Langford Still | Job Edward Lousley | 10/6/1944 | SLBI |
| Carex divulsa | GB, Devon, Tiverton | Arthur Langford Still | Job Edward Lousley | 6/6/1944 | SLBI |
| Sagina apetala | GB, Devon, Tiverton | Arthur Langford Still | Job Edward Lousley | 15/5/1944 | SLBI |
| Hieracium trichocaulon | GB, VC4 North Devon, Bampton | Arthur Langford Still | John Richard Wallis | 12/8/1942 | SLBI |
| Polygala vulgaris subsp. collina | GB, VC4 North Devon, Cove, Landrake | Arthur Langford Still | Edward Charles Wallace | 2/7/1942 | SLBI |
| Carex paniculata x remota = C. x boenninghauseniana | GB, Devon, Tiverton | Arthur Langford Still | Arthur Langford Still | 16/6/1942 | BM |
| Carex paniculata x remota = C. x boenninghauseniana | GB, VC6 North Somerset, Twerton | Arthur Langford Still | Arthur Langford Still | 16/6/1942 | BM |
| Galeopsis tetrahit | GB, Devon, Tiverton | Arthur Langford Still | Arthur Langford Still | 17/7/1941 | SLBI |
| Carex paniculata x remota = C. x boenninghauseniana | GB, VC4 North Devon, Tiverton | Arthur Langford Still | | 1/7/1941 | BM |
| Carex paniculata x remota = C. x boenninghauseniana | GB, Devon, Tiverton | Arthur Langford Still | Job Edward Lousley | 24/6/1941 | SLBI |
| Melittis melissophyllum | GB, VC4 North Devon, Hartland | Arthur Langford Still | Job Edward Lousley | 10/6/1941 | SLBI |
| Carex paniculata x remota = C. x boenninghauseniana | GB, VC4 North Devon, Tiverton | Arthur Langford Still | John Richard Wallis | 24/5/1941 | SLBI |
| Mentha arvensis x spicata = M. x gracilis | GB, VC4 North Devon, Tiverton | Arthur Langford Still | John Richard Wallis | 12/5/1941 | SLBI |
| Mentha arvensis | GB, VC37 Worcestershire, Cotheridge | | Arthur Langford Still Job Edward Lousley | 12/9/1940 | K |
| Mentha x verticillata var. rivalis | GB, VC36 Herefordshire, Canon Frome | Arthur Langford Still | Arthur Langford Still Job Edward Lousley | 5/9/1940 | K |
| Mentha aquatica x spicata = M. x piperita | GB, VC17 Surrey, Wallington Cultivated GB, VC37 Worcestershire, Alfrick | Arthur Langford Still | Job Edward Lousley | 9/1940 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC36 Herefordshire, Ledbury | Francis Morland Day | Arthur Langford Still | 29/8/1940 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC17 Surrey, Wallington | Arthur Langford Still | Job Edward Lousley | 10/8/1940 | K |
| Mentha arvensis x spicata = M. x gracilis | GB, VC34 West Gloucestershire, Symonds Yat | Arthur Langford Still | Job Edward Lousley | 10/8/1940 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC34 West Gloucestershire, Symonds Yat | Arthur Langford Still | | 10/8/1940 | CGE |
| Mentha spicata | GB, VC1 West Cornwall, Poldhu Cove GB, VC17 Surrey, Wallington Cultivated | Arthur Langford Still | Job Edward Lousley | 10/8/1940 | K |
| Mentha x piperita | GB, VC17 Surrey, Wallington Cultivated GB, Wiltshire, Bedwyn | Arthur Langford Still | Job Edward Lousley | 10/8/1940 | K |
| Nepeta cataria | GB, VC17 Surrey, Addington | Arthur Langford Still | | 10/8/1940 | SLBI |
| Mentha aquatica | GB, VC17 Surrey, Wallington Cultivated GB, VC2 East Cornwall, Boscastle | Arthur Langford Still | Job Edward Lousley | 1/8/1940 | K |
| Mentha aquatica x spicata = M. x piperita | GB, VC2 East Cornwall, Boscastle | Arthur Langford Still | Job Edward Lousley | 1/8/1940 | CGE |
| Mentha spicata | GB, VC17 Surrey, Wallington Cultivated GB, VC2 East Cornwall, Crackington | Arthur Langford Still | Job Edward Lousley | 1/8/1940 | K |
| Veronica agrestis | GB, VC17 Surrey, Addington | Arthur Langford Still | Job Edward Lousley | 4/7/1940 | K |
| Veronica agrestis | GB, VC17 Surrey, Addington | Arthur Langford Still | | 4/7/1940 | SLBI |
| Carex acuta | GB, VC16 West Kent, Tonbridge | Arthur Langford Still | | 20/5/1940 | SLBI |
| Carex elongata | GB, VC16 West Kent, Tonbridge | Arthur Langford Still | Robert MacKechnie | 20/5/1940 | E |
| Mentha arvensis x spicata = M. x gracilis | GB, VC41 Glamorganshire, Gower Cultivated | Arthur Langford Still | Job Edward Lousley | 10/8/1939 | SLBI |
| Mentha arvensis x spicata = M. x gracilis | GB, VC41 Glamorganshire, Gower Cultivated | Arthur Langford Still | | 10/8/1939 | SLBI |
| Mentha arvensis x spicata = M. x gracilis | GB, VC46 Cardiganshire, Aberarth Cultivated | Arthur Langford Still | Job Edward Lousley | 6/8/1939 | SLBI |
| Mentha arvensis x spicata = M. x gracilis | GB, VC46 Cardiganshire, Aberarth Cultivated | Arthur Langford Still | | 6/8/1939 | SLBI |
| Damasonium alisma | GB, VC17 Surrey, Worplesdon | Arthur Langford Still | | 7/7/1939 | E |
| Carex vulpina | GB, VC16 West Kent, Tonbridge, River Medway | Arthur Langford Still Edward Charles Wallace | Arthur Langford Still Patrick Martin Hall | 24/6/1939 | BM |
| Carex remota x vulpina = C. axilaris | GB, VC2 East Cornwall, Marhamchurch | Arthur Langford Still | Arthur Langford Still | 20/6/1939 | SLBI |
| Carex otrubae x remota = C. x pseudoaxillaris | GB, VC2 East Cornwall, Marhamchurch | Arthur Langford Still | Arthur Langford Still Patrick Martin Hall | 12/6/1939 | BM |
| Carex otrubae x remota = C. x pseudoaxillaris | GB, VC2 East Cornwall, Marhamchurch | Arthur Langford Still | Patrick Martin Hall | 12/6/1939 | BM |