| Ajuga reptans | | | Benjamin Thompson Lowne jnr | 10/10/1945 | K |
| Ajuga reptans | | | Benjamin Thompson Lowne jnr | 11/4/1946 | K |
| Ajuga reptans | Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Ajuga reptans | Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Ajuga reptans | Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Ajuga reptans | GB, VC14 East Sussex, Groombridge | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 27/5/1916 | K |
| Ajuga reptans | GB, VC16 West Kent, Downe | Benjamin Thompson Lowne jnr | | 6/1900 | K |
| Ajuga reptans | GB, VC16 West Kent, Farningham | | Benjamin Thompson Lowne jnr | 5/1923 | K |
| Ajuga reptans | GB, VC27 East Norfolk, Thorpe | Robert James Mann | Benjamin Thompson Lowne jnr Robert James Mann | 1835 | K |
| Antirrhinum majus | Cultivated | Benjamin Thompson Lowne jnr | | 22/3/1948 | K |
| Antirrhinum majus | GB, VC13 West Sussex, Worthing | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 23/7/1946 | K |
| Astragalus danicus | GB, VC28 West Norfolk, Thetford Cultivated | | Benjamin Thompson Lowne jnr | 19/7/1914 18/6/1915 | K |
| Astragalus danicus | GB, VC28 West Norfolk, Thetford Heath | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 7/1906 | K |
| Astragalus danicus | GB, VC63 South-west Yorkshire, Doncaster | Oswald Allen Moore | Benjamin Thompson Lowne jnr | 1850 | K |
| Baldellia ranunculoides | GB, VC27 East Norfolk, Ormesby | Robert James Mann | Benjamin Thompson Lowne jnr | 1835 | K |
| Baldellia ranunculoides | GB, VC27 East Norfolk, Ormesby | Benjamin Thompson Lowne snr | Benjamin Thompson Lowne jnr | 1863 | K |
| Ballota nigra | Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Ballota nigra | GB, VC18 South Essex, Dagenham | R S Vine | Benjamin Thompson Lowne jnr | 8/1933 | K |
| Blysmus compressus | GB, VC27 East Norfolk, Lakenham | | Benjamin Thompson Lowne jnr | 1836 | K |
| Blysmus compressus | GB, VC66 County Durham, Widdybank Fell, Teesdale | Benjamin Thompson Lowne jnr | | 26/6/1920 | K |
| Bupleurum tenuissimum | GB, VC11 South Hampshire, Portsmouth | Oswald Allen Moore | Benjamin Thompson Lowne jnr | 1838 | K |
| Callitriche | GB, VC16 West Kent, Crofton, Orpington | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 3/5/1901 | K |
| Callitriche | GB, VC16 West Kent, Crofton, Orpington | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 3/5/1901 | K |
| Callitriche | GB, VC16 West Kent, Crofton, Orpington | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 3/5/1901 | K |
| Callitriche | GB, VC69 Westmorland, Maize Beck | | Benjamin Thompson Lowne jnr | 27/6/1920 | K |
| Callitriche brutia | IE, VCH38 Co. Down, Holywood | | Benjamin Thompson Lowne jnr | 1850 | K |
| Callitriche obtusangula | GB, VC16 West Kent, Higham | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 17/6/1923 | K |
| Callitriche stagnalis | GB, VC16 West Kent, Joydens Wood | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 12/6/1901 | K |
| Callitriche stagnalis | GB, VC27 East Norfolk, Thorpe | Robert James Mann | Benjamin Thompson Lowne jnr | 6/1834 | K |
| Campanula patula | GB Cultivated | Benjamin Thompson Lowne jnr | | 4/3/1938 5/5/1938 to 22/5/1938 | K |
| Carex ericetorum | GB, VC28 West Norfolk, Thetford | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 1/6/1947 | K |
| Chaenorhinum minus | Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Chaenorhinum minus | GB, VC28 West Norfolk, Dereham | Robert James Mann | Benjamin Thompson Lowne jnr | 1835 | K |
| Clinopodium ascendens | Cultivated | | Benjamin Thompson Lowne jnr | | K |
| Clinopodium ascendens | GB, VC13 West Sussex, Sompting | Benjamin Thompson Lowne jnr | | 25/8/1946 | K |
| Clinopodium ascendens | GB, VC16 West Kent, Shoreham | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 11/8/1901 | K |
| Clinopodium ascendens | GB, VC27 East Norfolk, Buxton | Robert James Mann | Benjamin Thompson Lowne jnr | 1850 | K |
| Clinopodium ascendens | GB, VC27 East Norfolk, Lakenham | Robert James Mann | Benjamin Thompson Lowne jnr | 1835 | K |
| Clinopodium grandiflorum | Cultivated | | Benjamin Thompson Lowne jnr | 1916 | K |
| Clinopodium menthifolium | GB, VC13 West Sussex, Worthing Cultivated GB, VC17 Surrey, Haslemere Cultivated | | Benjamin Thompson Lowne jnr | 31/7/1948 | K |