| Callitriche brutia | IE, VCH38 Co. Down, Holywood | | Benjamin Thompson Lowne jnr | 1850 | K |
| Carthamus tinctorius | GB, Ambiguous locality (GB), Worthing | Benjamin Thompson Lowne jnr | | 8/1935 | SLBI |
| Spinacia oleracea | GB, Ambiguous locality (GB), Worthing | Benjamin Thompson Lowne jnr | | 8/1935 | SLBI |
| Veronica hederifolia subsp. sublobata | GB, Ambiguous locality (GB), West Wickham | Benjamin Thompson Lowne jnr | | 7/5/1898 | K |
| Dactylis glomerata | GB, Ambiguous locality (GB), Buxton | | Benjamin Thompson Lowne jnr | 1847 | K |
| Veronica alpina | GB, VC92 South Aberdeenshire, Cairngorm Mountains | J Johnstone | Benjamin Thompson Lowne jnr | 2/8/1939 | K |
| Vicia orobus | GB, VC90 Angus, Arbroath | J Smith Nicoll | The South London Botanical Institute Alexander Somerville Allan Octavian Hume Benjamin Thompson Lowne jnr | 24/6/1904 | K |
| Veronica fruticans | GB, VC88 Mid Perthshire, Breadalbane | | Benjamin Thompson Lowne jnr | 1850 | K |
| Habenaria albida | GB, VC85 Fifeshire, Dunfermline | Dewar | Benjamin Thompson Lowne jnr | | K |
| Callitriche | GB, VC69 Westmorland, Maize Beck | | Benjamin Thompson Lowne jnr | 27/6/1920 | K |
| Blysmus compressus | GB, VC66 County Durham, Widdybank Fell, Teesdale | Benjamin Thompson Lowne jnr | | 26/6/1920 | K |
| Stachys officinalis | GB, VC66 County Durham, Teesdale | Constance L Wilde | Benjamin Thompson Lowne jnr | 24/7/1919 | K |
| Scrophularia nodosa | GB, VC66 County Durham, Bowlees | | Benjamin Thompson Lowne jnr | 29/6/1920 | K |
| Thymus | GB, VC65 North-west Yorkshire, Scaurberry Bridge [Scoberry Bridge] | | Benjamin Thompson Lowne jnr | 24/6/1920 | K |
| Astragalus danicus | GB, VC63 South-west Yorkshire, Doncaster | Oswald Allen Moore | Benjamin Thompson Lowne jnr | 1850 | K |
| Scrophularia vernalis | GB, VC63 South-west Yorkshire, Doncaster | Oswald Allen Moore | Benjamin Thompson Lowne jnr | 1850 | K |
| Gentiana verna | GB, VC59 South Lancashire, Liverpool | Allan Octavian Hume | Benjamin Thompson Lowne jnr | 28/9/1905 | K |
| Gentianella campestris | GB, VC59 South Lancashire, Liverpool GB, VC59 South Lancashire, Southport | Allan Octavian Hume | Benjamin Thompson Lowne jnr | 28/9/1905 | K |
| Mentha arvensis var. praecox | GB, VC58 Cheshire, Tilston Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Habenaria viride | GB, VC57 Derbyshire, Longstone Edge | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 20/8/1914 | K |
| Plantago maritima | GB, VC52 Anglesey, Beaumaris | | Benjamin Thompson Lowne jnr | 19/8/1912 | K |
| Plantago maritima | GB, VC52 Anglesey, Beaumaris | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 19/8/1912 | K |
| Veronica spicata | GB, VC50 Denbighshire, Saint Asaph, Cefn Rocks | Henry Franklin Parsons | Benjamin Thompson Lowne jnr | 17/10/1885 | K |
| Habenaria viride | GB, VC50 Denbighshire, Minera Mountain | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 20/6/1903 | K |
| Galeopsis segetum | GB, VC49 Caernarvonshire Cultivated | | Benjamin Thompson Lowne jnr | 10/8/1907 | K |
| Habenaria albida | GB, VC48 Merionethshire, Corris Uchaf, Tap Du | Benjamin Thompson Lowne jnr | | 22/6/1922 | K |
| Habenaria albida | GB, VC48 Merionethshire, Corris Uchaf | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 16/6/1924 | K |
| Linaria repens | GB, VC44 Carmarthenshire, Velindre | Benjamin Thompson Lowne jnr | | 27/8/1907 | K |
| Linaria vulgaris x repens = L. x sepium | GB, VC44 Carmarthenshire, Velindre | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | | K |
| Mentha arvensis | GB, VC29 Cambridgeshire, Fowlmere | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 5/8/1923 | K |
| Silene conica | GB, Norfolk, Weeting | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 3/6/1907 | K |
| Cuscuta epithymum | GB, Norfolk, Saint Faith's Bogs | Robert James Mann | Benjamin Thompson Lowne jnr | 8/1837 | K |
| Cuscuta epithymum | GB, Norfolk | | Benjamin Thompson Lowne jnr | | K |
| Veronica spicata | GB, VC28 West Norfolk, West Harling | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 6/8/1922 | K |
| Lamium amplexicaule | GB, VC28 West Norfolk, Weeting | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 29/4/1944 | K |
| Silene conica | GB, VC28 West Norfolk, Weeting | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 3/6/1907 | K |
| Astragalus danicus | GB, VC28 West Norfolk, Thetford Heath | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 7/1906 | K |
| Astragalus danicus | GB, VC28 West Norfolk, Thetford Cultivated | | Benjamin Thompson Lowne jnr | 19/7/1914 18/6/1915 | K |
| Carex ericetorum | GB, VC28 West Norfolk, Thetford | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 1/6/1947 | K |
| Linaria purpurea | GB, VC28 West Norfolk, Thetford | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 17/7/1941 | K |