| Melittis melissophyllum | GB, VC2 East Cornwall, Polbathick | Victor Samuel Summerhayes | | 5/1917 | K |
| Galeopsis angustifolia | GB, VC2 East Cornwall, Whitsand Bay | Victor Samuel Summerhayes | | 5/1917 | K |
| Veronica arvensis | GB, VC2 East Cornwall, Whitsand Bay | Victor Samuel Summerhayes | | 5/1917 | K |
| Orchis morio | GB, VC3 South Devon, Babbacombe | Victor Samuel Summerhayes | | 1/6/1962 | K |
| Mentha arvensis | GB, VC3 South Devon, Exmouth | Victor Samuel Summerhayes | | 2/8/1930 | K |
| Linaria repens | GB, VC3 South Devon, Sidmouth | Victor Samuel Summerhayes | | 25/6/1965 | K |
| Melittis melissophyllum | GB, VC4 North Devon, Chittlehamholt | Victor Samuel Summerhayes | | 2/6/1959 | K |
| Veronica montana | GB, Devon, Devon,Exe Valley | Victor Samuel Summerhayes | | 26/5/1956 | K |
| Clinopodium ascendens | GB, VC6 North Somerset, Brean Down | Victor Samuel Summerhayes | | 9/8/1915 | K |
| Marrubium vulgare | GB, VC6 North Somerset, Brean Down | Victor Samuel Summerhayes | | 9/8/1915 | K |
| Ajuga reptans | GB, VC6 North Somerset, Bruton | Victor Samuel Summerhayes | | 6/1913 | K |
| Chaenorhinum minus | GB, VC6 North Somerset, Bruton | Victor Samuel Summerhayes | | 5/1913 | K |
| Veronica chamaedrys | GB, VC6 North Somerset, Bruton | Victor Samuel Summerhayes | | 6/1913 | K |
| Veronica officinalis | GB, VC6 North Somerset, Bruton | Victor Samuel Summerhayes | | 5/1913 | K |
| Festuca arundinacea | GB, VC6 North Somerset, Burnham-on-Sea | Victor Samuel Summerhayes | | 22/7/1928 | K |
| Festuca arundinacea | GB, VC6 North Somerset, Burnham-on-Sea | Victor Samuel Summerhayes | | 22/7/1928 | K |
| Hordeum marinum | GB, VC6 North Somerset, Burnham-on-Sea | Victor Samuel Summerhayes | | 10/7/1927 | K |
| Plantago lanceolata var. anthoviridis | GB, VC6 North Somerset, Burnham-on-Sea | Victor Samuel Summerhayes | | 22/5/1949 | K |
| Plantago lanceolata var. anthoviridis | GB, VC6 North Somerset, Burnham-on-Sea | Victor Samuel Summerhayes | | 22/5/1949 | K |
| Veronica filiformis | GB, VC6 North Somerset, Butleigh Wootton | Victor Samuel Summerhayes | | 24/6/1946 | K |
| Antirrhinum majus | GB, VC6 North Somerset, Cheddar Gorge | Victor Samuel Summerhayes | | 8/1913 | K |
| Clinopodium ascendens | GB, VC6 North Somerset, Ebbor Gorge | Victor Samuel Summerhayes | | 21/9/1915 | K |
| Mentha aquatica | GB, VC6 North Somerset, Edington | Victor Samuel Summerhayes | | 14/8/1920 | K |
| Stellaria palustris | GB, VC6 North Somerset, Edington | Victor Samuel Summerhayes | | 14/8/1920 | K |
| Callitriche obtusangula | GB, VC6 North Somerset, Glastonbury | Victor Samuel Summerhayes | | 27/5/1956 | K |
| Lamium album | GB, VC6 North Somerset, Glastonbury | Victor Samuel Summerhayes | | 22/4/1936 | K |
| Mentha arvensis | GB, VC6 North Somerset, Glastonbury | Victor Samuel Summerhayes | | 13/8/1957 | K |
| Ajuga reptans | GB, VC6 North Somerset, Ivy Thorn Hill | Victor Samuel Summerhayes | | 21/4/1935 | K |
| Festuca arundinacea | GB, VC6 North Somerset, Ivy Thorn Hill | Victor Samuel Summerhayes | | 14/7/1928 | K |
| Festuca arundinacea | GB, VC6 North Somerset, Ivy Thorn Hill | Victor Samuel Summerhayes | | 14/7/1928 | K |
| Oenanthe fistulosa | GB, VC6 North Somerset, King's Sedgemoor | Victor Samuel Summerhayes | | 25/5/1956 | K |
| Thymus chamaedrys | GB, VC6 North Somerset, Mendip Hills | Victor Samuel Summerhayes | | 7/1913 | K |
| Veronica hederifolia | GB, VC6 North Somerset, Overleigh | Victor Samuel Summerhayes | | 19/4/1935 | K |
| Lamium album | GB, VC6 North Somerset, Pitney | Victor Samuel Summerhayes | | 9/4/1921 | K |
| Veronica montana | GB, VC6 North Somerset, Pitney | Victor Samuel Summerhayes | | 6/6/1956 | K |
| Chaenorhinum minus | GB, VC6 North Somerset, Polden Hills | Victor Samuel Summerhayes | | 30/7/1945 | K |
| Clinopodium ascendens | GB, VC6 North Somerset, Polden Hills | Victor Samuel Summerhayes | | 6/8/1943 | K |
| Festuca arundinacea | GB, VC6 North Somerset, Polden Hills | Victor Samuel Summerhayes | | 13/7/1928 | K |
| Festuca arundinacea | GB, VC6 North Somerset, Polden Hills | Victor Samuel Summerhayes | | 27/6/1945 | K |
| Festuca arundinacea | GB, VC6 North Somerset, Polden Hills | Victor Samuel Summerhayes | | 13/7/1928 | K |