| Mentha aquatica x spicata = M. x piperita | GB, VC24 Buckinghamshire, Iver | Arthur Langford Still | Job Edward Lousley | 21/9/1935 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC24 Buckinghamshire, Iver | Arthur Langford Still | | 21/9/1935 | SLBI |
| Mentha aquatica | GB, VC20 Hertfordshire, Royston | Arthur Langford Still | Arthur Langford Still | 29/9/1935 | K |
| Carex elata | GB, VC49 Caernarvonshire, Cwm-y-glo | Arthur Langford Still | Job Edward Lousley | 6/1936 | SLBI |
| Carex nigra | GB, VC49 Caernarvonshire, Cwm-y-glo | Arthur Langford Still | Job Edward Lousley | 6/1936 | SLBI |
| Carex elata | GB, VC49 Caernarvonshire, Cwm-y-glo | Arthur Langford Still | Job Edward Lousley | 6/1936 | SLBI |
| Carex elata | GB, VC49 Caernarvonshire, Cwm-y-glo | Arthur Langford Still | Job Edward Lousley | 6/1936 | SLBI |
| Carex nigra | GB, VC49 Caernarvonshire, Cwm-y-glo | Arthur Langford Still | Job Edward Lousley | 6/1936 | SLBI |
| Senecio vulgaris | GB, VC49 Caernarvonshire, Porthmadog | Arthur Langford Still | Job Edward Lousley | 6/1936 | SLBI |
| Ranunculus fluitans | GB, VC52 Anglesey, Llyn Coron | Arthur Langford Still | Job Edward Lousley | 6/1936 | SLBI |
| Carex muricata subsp. pairae | GB, VC52 Anglesey, Llyn Coron | Arthur Langford Still | Job Edward Lousley | 6/1936 | SLBI |
| Carex muricata subsp. pairae | GB, VC52 Anglesey, Llyn Coron | Arthur Langford Still | Job Edward Lousley | 6/1936 | SLBI |
| Carex vesicaria | GB, VC49 Caernarvonshire, Llyn Padarn | Arthur Langford Still | Edward Charles Wallace | 9/6/1936 | E |
| Carex dioica | GB, VC49 Caernarvonshire, Cwm Idwal | Arthur Langford Still | Robert MacKechnie | 25/6/1936 | E |
| Hymenophyllum wilsonii | GB, VC49 Caernarvonshire, Dolbadarn Castle | Arthur Langford Still | Harold Stuart Thompson Edward Charles Wallace | 27/6/1936 | BIRM |
| Carex muricata subsp. pairae | GB, VC52 Anglesey, Bodorgan | Arthur Langford Still | | 29/6/1936 | BM |
| Carex muricata subsp. pairae | GB, VC52 Anglesey, Bodorgan Station | Arthur Langford Still | Arthur Langford Still | 29/6/1936 | BM |
| Carex disticha | GB, VC52 Anglesey, Llyn Coron | Arthur Langford Still | Edward Charles Wallace Robert MacKechnie | 29/6/1936 | E |
| 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 arvensis x spicata = M. x gracilis | GB, VC17 Surrey, Wallington Cultivated | Arthur Langford Still | F W Holder | 8/1936 | LIV |
| 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, VC34 West Gloucestershire, Lydbrook | Arthur Langford Still | | 28/8/1936 | OXF |
| Mentha suaveolens x longifolia = M. x rotundifolia | GB, VC34 West Gloucestershire, Symonds Yat | Arthur Langford Still | Job Edward Lousley | 28/8/1936 | SLBI |
| Torilis arvensis | GB, VC17 Surrey, Addington, Croydon | Arthur Langford Still | | 8/1936 | BIRM |
| Mentha arvensis x spicata = M. x gracilis | GB, VC12 North Hampshire, Hazeley Heath | Arthur Langford Still | Job Edward Lousley | 4/9/1936 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC17 Surrey, Wallington Cultivated GB, VC20 Hertfordshire, Roydon | Arthur Langford Still | Botanical Exchange Club of The British Isles | 6/9/1936 | OXF |
| Mentha aquatica | GB, VC17 Surrey, Wallington Cultivated GB, VC20 Hertfordshire, Roydon | Arthur Langford Still | Botanical Exchange Club of The British Isles | 6/9/1936 | K |
| Mentha aquatica | GB, VC17 Surrey, Wallington Cultivated | Arthur Langford Still | Botanical Exchange Club of The British Isles | 6/9/1936 | SLBI |
| Mentha x piperita | GB, VC14 East Sussex, Danehill | Arthur Langford Still | Botanical Society & Exchange Club of The British Isles | 8/9/1936 | K |
| Mentha aquatica x spicata = M. x piperita | GB, VC14 East Sussex, Danehill | Arthur Langford Still | Botanical Exchange Club of The British Isles Job Edward Lousley | 8/9/1936 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC14 East Sussex, Danehill | Arthur Langford Still | Botanical Exchange Club of The British Isles | 8/9/1936 | SLBI |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC21 Middlesex, Stanmore | Arthur Langford Still | Botanical Exchange Club of The British Isles | 18/9/1936 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC21 Middlesex, Stanmore | Arthur Langford Still | | 18/9/1936 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC21 Middlesex, Stanmore | Arthur Langford Still | Botanical Exchange Club of The British Isles | 18/9/1936 | SLBI |
| 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 |
| Potamogeton alpinus | GB, VC11 South Hampshire, Basingstoke Canal | Arthur Langford Still | | 6/1937 | SLBI |
| Carex nigra | GB, VC52 Anglesey, Holyhead, Carreg Fawr | Arthur Langford Still | Job Edward Lousley | 6/1937 | SLBI |
| Carex muricata subsp. pairae | GB, VC52 Anglesey, South Stack | Arthur Langford Still | Arthur Langford Still | 6/1937 | BM |
| Carex flacca | GB, VC52 Anglesey, Trearddur Bay | Arthur Langford Still | Job Edward Lousley | 5/6/1937 | SLBI |