| Mentha arvensis x aquatica = M. x verticillata | GB, VC1 West Cornwall, Penhallow | Francis Rilstone | Botanical Exchange Club of The British Isles | 8/9/1934 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC1 West Cornwall, Ventongimps | Francis Rilstone | Botanical Exchange Club of The British Isles | 16/9/1935 | K |
| Mentha spicata | GB, VC1 West Cornwall, Newquay, Watergate Bay | Chambre Corker Vigurs | Watson Botanical Exchange Club J Fraser Francis Rilstone | 18/9/1913 | K |
| Mentha spicata | GB, VC1 West Cornwall, Perranzabuloe,Lambourne Hill | Francis Rilstone | Botanical Society of The British Isles | 23/8/1948 | K |
| Mentha x piperita var. vulgaris | GB, VC2 East Cornwall, Fowey | Francis Rilstone | Edgar Thurston | 9/1917 | K |
| Phalaris arundinacea | GB, VC2 East Cornwall, Polperro | Francis Rilstone | Edgar Thurston | 20/7/1916 | K |
| Plantago arenaria | GB, VC2 East Cornwall, Sandplace | Francis Rilstone | Edgar Thurston | 12/11/1932 | K |
| Plantago lanceolata | GB, VC1 West Cornwall, Gollawater | Francis Rilstone | Francis Rilstone | 22/6/1935 | K |
| Plantago lanceolata var. anthoviridis | GB, VC1 West Cornwall, Lambourne | Francis Rilstone | | 1/6/1935 | K |
| Plantago lanceolata var. anthoviridis | GB, VC1 West Cornwall, Perranzabuloe | Francis Rilstone | Botanical Exchange Club of The British Isles Albert Bruce Jackson | 1/7/1935 | K |
| Plantago lanceolata var. anthoviridis | GB, VC1 West Cornwall, Perranzabuloe | Francis Rilstone | Botanical Exchange Club of The British Isles | 1/7/1935 | K |
| Plantago lanceolata | GB, VC1 West Cornwall, Perranzabuloe | Francis Rilstone | Botanical Exchange Club of The British Isles | 1/7/1935 | K |
| Plantago lanceolata | GB, VC1 West Cornwall, Perranzabuloe | Francis Rilstone | Botanical Exchange Club of The British Isles Albert Bruce Jackson | 1/7/1935 | K |
| Plantago lanceolata var. anthoviridis | GB, VC1 West Cornwall, Perranzabuloe,Lambourne Hill | Francis Rilstone | Botanical Exchange Club of The British Isles | 3/5/1937 | K |
| Plantago lanceolata | GB, VC1 West Cornwall, Quintrell Downs | Francis Rilstone | Edgar Thurston | 26/8/1922 | K |
| Plantago lanceolata var. anthoviridis | GB, VC1 West Cornwall, Quintrell Downs | Edgar Thurston Francis Rilstone | Edgar Thurston | 28/8/1922 | K |
| Plantago media | GB, VC2 East Cornwall, Polperro | Francis Rilstone | Edgar Thurston | 12/6/1917 | K |
| Plantago media | GB, VC2 East Cornwall, Polperro | Francis Rilstone | Edgar Thurston | 12/6/1917 | K |
| Sibthorpia europaea | GB, VC1 West Cornwall, Ventongimps | Francis Rilstone | Botanical Exchange Club of The British Isles | 9/9/1935 | K |
| Stachys | GB, VC1 West Cornwall, Lambourne | Francis Rilstone | Botanical Society of The British Isles | 23/8/1948 | K |
| Stachys annua | GB, VC2 East Cornwall, Par | Francis Rilstone | Edgar Thurston | 7/1917 | K |
| Stachys sylvatica x palustris = S. x ambigua | GB, VC1 West Cornwall, Perranzabuloe,Lambourne Hill | Francis Rilstone | Botanical Society of The British Isles Francis Rilstone | 23/8/1948 | K |
| Stachys sylvatica x palustris = S. x ambigua | GB, VC2 East Cornwall, Polperro | Francis Rilstone | Botanical Exchange Club of The British Isles Francis Rilstone Lester Vallis Lester-Garland | 10/7/1919 | K |
| Thymus | GB, VC1 West Cornwall, Perrancoombe | Francis Rilstone | | 28/8/1924 | K |
| Thymus | GB, VC2 East Cornwall, Polperro | Francis Rilstone | Edgar Thurston | 24/7/1931 | K |
| Thymus chamaedrys | GB, VC1 West Cornwall, Perranporth | Francis Rilstone | | 5/8/1924 | K |
| Thymus praecox subsp. arcticus | GB, VC1 West Cornwall, Callestick | Francis Rilstone | | 29/8/1924 | K |
| Thymus praecox subsp. arcticus | GB, VC1 West Cornwall, Ventongimps | Francis Rilstone | Botanical Exchange Club of The British Isles Charles Edward Britton Francis Rilstone | 9/8/1929 | K |
| Thymus praecox subsp. arcticus | GB, VC1 West Cornwall, Ventongimps | Francis Rilstone | Botanical Exchange Club of The British Isles Charles Edward Britton Francis Rilstone | 9/8/1929 | K |
| Thymus praecox subsp. arcticus | GB, VC2 East Cornwall, Polperro | Francis Rilstone | Botanical Exchange Club of The British Isles | 29/7/1928 | K |
| Thymus praecox subsp. arcticus | GB, VC2 East Cornwall, Polperro | Francis Rilstone | Botanical Exchange Club of The British Isles | 28/7/1928 | K |
| Thymus praecox subsp. arcticus | GB, VC2 East Cornwall, Polperro | Francis Rilstone | Botanical Exchange Club of The British Isles | 29/7/1928 | K |
| Thymus praecox subsp. arcticus | GB, VC2 East Cornwall, Polperro | Francis Rilstone | Botanical Society & Exchange Club of The British Isles Charles Edward Britton | 29/7/1928 | K |
| Thymus praecox subsp. arcticus | GB, VC18 South Essex, Lambourne | Francis Rilstone | | 30/8/1924 | K |
| Veronica agrestis | GB, VC1 West Cornwall, Perranzabuloe,Lambourne Hill | Francis Rilstone | Edgar Thurston | 7/11/1913 | K |
| Veronica agrestis | GB, VC2 East Cornwall, Lostwithiel | Edgar Thurston Francis Rilstone | Edgar Thurston | 24/8/1923 | K |
| Veronica agrestis | GB, VC2 East Cornwall, Polperro | Francis Rilstone | Edgar Thurston | 29/9/1917 | K |
| Veronica arvensis | GB, VC1 West Cornwall, Perranzabuloe,Lambourne Hill | Francis Rilstone | Botanical Exchange Club of The British Isles | 11/6/1936 | K |
| Veronica filiformis | GB, VC1 West Cornwall, Perranzabuloe | Francis Rilstone | | 2/5/1945 | K |
| Veronica peregrina | GB, VC1 West Cornwall, Truro, Killiow | Francis Rilstone | Edgar Thurston | 12/6/1919 | K |