| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Oxford | | Druce Herbarium, Oxford Arthur Langford Still | 6/9/1937 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC34 West Gloucestershire, Lydbrook | Arthur Langford Still | | 28/8/1936 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC17 Surrey, Wallington Cultivated GB, VC34 West Gloucestershire, Symonds Yat | Arthur Langford Still | Botanical Exchange Club of The British Isles | 8/1937 | K |
| Mentha arvensis x spicata = M. x gracilis | GB, VC34 West Gloucestershire, Symonds Yat Cultivated | Arthur Langford Still | | 8/1937 | OXF |
| 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 arvensis x spicata = M. x gracilis | GB, VC36 Herefordshire, Symonds Yat | Arthur Langford Still | | 27/8/1936 | K |
| Mentha arvensis x spicata = M. x gracilis | GB, VC36 Herefordshire, Symonds Yat | Arthur Langford Still | | 27/8/1936 | SLBI |
| Mentha arvensis x spicata = M. x gracilis | GB, VC41 Glamorganshire, Bishopston | Arthur Langford Still | Botanical Society & Exchange Club of The British Isles Druce Herbarium, Oxford | 3/9/1937 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC41 Glamorganshire, Bishopston | Arthur Langford Still | Edward Charles Wallace Job Edward Lousley | 13/8/1934 | SLBI |
| 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, VC41 Glamorganshire, Llangennith | Arthur Langford Still | Edward Charles Wallace | 16/9/1934 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC41 Glamorganshire, Llangennith | Arthur Langford Still | Botanical Exchange Club of The British Isles Edward Charles Wallace Job Edward Lousley | 10/8/1934 | SLBI |
| Mentha arvensis x spicata = M. x gracilis | GB, VC41 Glamorganshire, Parkmill, Gower | Arthur Langford Still | Botanical Society & Exchange Club of The British Isles Druce Herbarium, Oxford | 1/9/1937 | OXF |
| 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 |
| Mentha gentilis var. gracilis | GB, VC17 Surrey, Wallington Cultivated | Arthur Langford Still | Botanical Society & Exchange Club of The British Isles Arthur Langford Still | 8/1936 | K |
| Mentha gentilis var. vesana | GB, VC41 Glamorganshire, Bishopston | Arthur Langford Still | Botanical Exchange Club of The British Isles | 3/9/1937 | K |
| Mentha gracilis var. cardiaca | GB, VC17 Surrey, Ashtead GB, VC17 Surrey, Wallington Cultivated | Arthur Langford Still | | | SLBI |
| Mentha gracilis var. cardiaca | GB, VC17 Surrey, Shalford | Arthur Langford Still | | 2/9/1933 | SLBI |
| Mentha longifolia | GB, VC1 West Cornwall, Saint Columb Minor | Arthur Langford Still | Job Edward Lousley | 21/8/1935 | SLBI |
| Mentha longifolia | GB, VC17 Surrey, Bramley | Arthur Langford Still | | 13/8/1935 | SLBI |
| Mentha longifolia | GB, VC90 Angus, Glamis | Arthur Langford Still | | 19/8/1937 | SLBI |
| Mentha piperita var. piperita | GB, VC17 Surrey, Chiddingfold | Arthur Langford Still | Job Edward Lousley | 15/9/1937 | K |
| Mentha piperita var. piperita | GB, VC33 East Gloucestershire, Fossebridge | Arthur Langford Still | Arthur Langford Still Job Edward Lousley | 23/8/1937 | K |
| Mentha pulegium | GB, VC1 West Cornwall, Mullion | Arthur Langford Still | Job Edward Lousley | 22/8/1935 | SLBI |
| Mentha pulegium | GB, VC41 Glamorganshire, Reynoldston | Arthur Langford Still | Edward Charles Wallace Job Edward Lousley | 8/8/1934 | SLBI |
| Mentha rubra | GB, VC6 North Somerset, Chewton Mendip | Harold Stuart Thompson | Harold Stuart Thompson Rex Alan Henry Graham Arthur Langford Still | 12/8/1935 to 22/8/1935 | BIRM |
| Mentha rubra | GB, VC6 North Somerset, Litton Upper Reservoir | Harold Stuart Thompson | Arthur Langford Still Harold Stuart Thompson | 12/8/1935 | BIRM |
| Mentha rubra | GB, VC17 Surrey, North Holmwood | Arthur Langford Still | Harold Stuart Thompson | 2/9/1935 | BIRM |
| Mentha spicata | GB, VC1 West Cornwall, Bissoe | Arthur Langford Still | Job Edward Lousley | 21/8/1935 | SLBI |
| Mentha spicata | GB, VC1 West Cornwall, Poldhu Cove GB, VC17 Surrey, Wallington Cultivated | Arthur Langford Still | Job Edward Lousley | 10/8/1940 | K |
| Mentha spicata | GB, VC6 North Somerset, Clifton Bridge | Harold Stuart Thompson | Arthur Langford Still Harold Stuart Thompson | 3/9/1933 | BIRM |
| Mentha spicata | GB, VC16 West Kent, Farningham | Arthur Langford Still | Arthur Langford Still | 29/7/1934 | K |
| Mentha spicata | GB, VC17 Surrey, Bramley GB, VC17 Surrey, Wallington Cultivated | Arthur Langford Still | Job Edward Lousley | 8/1935 | K |
| Mentha spicata | GB, VC17 Surrey, Bramley | Arthur Langford Still | Edward Charles Wallace | 4/9/1934 | K |
| Mentha spicata | GB, VC17 Surrey, Dorking | Arthur Langford Still | Edward Charles Wallace Job Edward Lousley | 26/8/1935 | SLBI |
| Mentha spicata | GB, VC17 Surrey, Wallington Cultivated GB, VC2 East Cornwall, Crackington | Arthur Langford Still | Job Edward Lousley | 1/8/1940 | K |
| Mentha spicata | GB, VC17 Surrey, Wallington Cultivated | Arthur Langford Still | Edward Charles Wallace | 29/8/1935 | K |