| Digitalis purpurea | GB, VC16 West Kent, Darenth Wood | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 7/6/1901 | K |
| Digitalis purpurea | GB, VC16 West Kent, Darenth Wood | Benjamin Thompson Lowne snr | Benjamin Thompson Lowne jnr | 7/6/1901 | K |
| Erinus alpinus | Cultivated | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 20/5/1945 | K |
| Erinus alpinus | Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Festuca arundinacea | GB, VC13 West Sussex, Fishbourne | | Benjamin Thompson Lowne jnr | 14/7/1944 | K |
| Festuca arundinacea | GB, VC15 East Kent, Dover | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 11/6/1903 | K |
| Festuca arundinacea | GB, VC15 East Kent, Pegwell Bay | Benjamin Thompson Lowne jnr | | 4/7/1901 | K |
| Fraxinus excelsior | Cultivated | | Benjamin Thompson Lowne jnr | 24/4/1910 | K |
| Fraxinus excelsior | Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Galeopsis angustifolia | Cultivated | Benjamin Thompson Lowne jnr | | | K |
| Galeopsis angustifolia | GB, VC15 East Kent, Farleigh | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 11/8/1907 | K |
| Galeopsis angustifolia | GB, VC16 West Kent, Keston | Benjamin Thompson Lowne jnr | | 8/1899 | K |
| Galeopsis segetum | Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Galeopsis segetum | | | Benjamin Thompson Lowne jnr | | K |
| Galeopsis segetum | Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Galeopsis segetum | GB, VC16 West Kent, Catford Cultivated | Benjamin Thompson Lowne jnr | | 9/8/1914 | K |
| Galeopsis segetum | GB, VC49 Caernarvonshire Cultivated | | Benjamin Thompson Lowne jnr | 10/8/1907 | K |
| Galeopsis tetrahit | Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Galeopsis tetrahit | GB, VC16 West Kent, Bickley | Benjamin Thompson Lowne jnr | | 8/1899 | K |
| Galeopsis tetrahit | GB, VC16 West Kent, Cudham | Benjamin Thompson Lowne jnr | | 8/1899 | K |
| Galeopsis versicolor | Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Gentiana verna | GB, VC59 South Lancashire, Liverpool | Allan Octavian Hume | Benjamin Thompson Lowne jnr | 28/9/1905 | K |
| Gentianella campestris | GB, VC27 East Norfolk, Saint Fays Marshes | | Benjamin Thompson Lowne jnr Benjamin Thompson Lowne snr | 1837 | K |
| Gentianella campestris | GB, VC59 South Lancashire, Liverpool GB, VC59 South Lancashire, Southport | Allan Octavian Hume | Benjamin Thompson Lowne jnr | 28/9/1905 | K |
| Glechoma hederacea | GB, VC22 Berkshire, Newbury | Albert Bruce Jackson | Benjamin Thompson Lowne jnr | | K |
| Glechoma hederacea | GB, VC27 East Norfolk, Thorpe | Robert James Mann | Benjamin Thompson Lowne jnr | 4/1835 | K |
| Gnaphalium sylvaticum | GB, VC13 West Sussex, West Chiltington | Benjamin Thompson Lowne jnr | | 4/9/1936 | K |
| Groenlandia densa | GB, VC16 West Kent, Holwood | Benjamin Thompson Lowne jnr | | 28/6/1900 | K |
| Habenaria albida | GB, VC48 Merionethshire, Corris Uchaf | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 16/6/1924 | K |
| Habenaria albida | GB, VC48 Merionethshire, Corris Uchaf, Tap Du | Benjamin Thompson Lowne jnr | | 22/6/1922 | K |
| Habenaria albida | GB, VC85 Fifeshire, Dunfermline | Dewar | Benjamin Thompson Lowne jnr | | K |
| Habenaria viride | GB, VC14 East Sussex, Eastbourne | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 8/6/1906 | K |
| Habenaria viride | GB, VC15 East Kent, Dover | James Alexander Brewer | Benjamin Thompson Lowne jnr | 6/1852 | K |
| Habenaria viride | GB, VC25 East Suffolk, Bungay | | Benjamin Thompson Lowne jnr | 1835 | K |
| Habenaria viride | GB, VC50 Denbighshire, Minera Mountain | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 20/6/1903 | K |
| Habenaria viride | GB, VC57 Derbyshire, Longstone Edge | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 20/8/1914 | K |
| Herminium monorchis | GB, VC13 West Sussex, Chanctonbury Ring | Benjamin Thompson Lowne jnr | | 12/7/1946 | K |
| Herminium monorchis | GB, VC16 West Kent, Chevening | Henry Lascelles Jenner | Benjamin Thompson Lowne jnr | 7/1845 | K |
| Herminium monorchis | GB, VC17 Surrey, Box Hill | Benjamin Thompson Lowne jnr | | 10/7/1904 | K |
| Herminium monorchis | GB, VC17 Surrey, Mickleham | | Brewer Benjamin Thompson Lowne jnr | 7/1862 | K |