| Festuca arundinacea | GB, VC23 Oxfordshire, Marston | | Lester Vallis Lester-Garland | 3/7/1894 | K |
| Festuca arundinacea | GB, VC9 Dorset, Portland | | Lester Vallis Lester-Garland | 31/8/1894 | K |
| Festuca arundinacea | GB, VC9 Dorset, Swanage | Lester Vallis Lester-Garland | Lester Vallis Lester-Garland | 9/7/1895 | K |
| Festuca arundinacea | GB, VC113 Channel Islands, Jersey, Millbrook | | Lester Vallis Lester-Garland | 10/7/1897 | K |
| Festuca arundinacea | GB, VC9 Dorset, Wareham | | Lester Vallis Lester-Garland | 28/6/1895 | K |
| Fraxinus excelsior | GB, VC38 Warwickshire, Birmingham | Lester Vallis Lester-Garland | | 23/5/1917 | K |
| Fraxinus excelsior | GB, VC113 Channel Islands, Jersey | | Lester Vallis Lester-Garland | 18/4/1900 21/7/1900 | K |
| Galeopsis angustifolia | GB, VC22 Berkshire, Faringdon | | Lester Vallis Lester-Garland | 14/7/1913 | K |
| Galeopsis angustifolia | GB, VC9 Dorset, Swanage | | Lester Vallis Lester-Garland | 8/1902 | K |
| Galeopsis angustifolia | GB, VC9 Dorset, Steepleton | | Lester Vallis Lester-Garland | 1893 | K |
| Galeopsis tetrahit | GB, VC22 Berkshire, Godstow | | Lester Vallis Lester-Garland | 18/8/1895 | K |
| Galeopsis tetrahit | GB, VC23 Oxfordshire, Godstow | | Lester Vallis Lester-Garland | 1892 | K |
| Galeopsis tetrahit | GB, VC99 Dunbartonshire, Ardlui | | Lester Vallis Lester-Garland | 12/9/1919 | K |
| Galeopsis tetrahit | GB, VC113 Channel Islands, Jersey,Rozel | | Lester Vallis Lester-Garland | 15/7/1898 | K |
| Galeopsis versicolor | GB, VC98 Argyllshire, Kilcheran Cultivated | Lester Vallis Lester-Garland | Lester Vallis Lester-Garland | 3/9/1919 | K |
| Galeopsis versicolor | GB, VC48 Merionethshire, Pennal | Lester Vallis Lester-Garland | Lester Vallis Lester-Garland | 3/9/1922 | K |
| Galeopsis versicolor | GB, VC53 South Lincolnshire, Swinderby | | Lester Vallis Lester-Garland | 6/9/1912 | K |
| Glebionis segetum | GB, Wiltshire, Bromham | | Lester Vallis Lester-Garland | 22/8/1894 | K |
| Glebionis segetum | GB, VC113 Channel Islands, Jersey, Saint Brelade | | Lester Vallis Lester-Garland | 13/6/1900 | K |
| Glechoma hederacea | GB, VC23 Oxfordshire, Wood Eaton | | Lester Vallis Lester-Garland | 29/4/1895 | K |
| Glechoma hederacea | GB, VC23 Oxfordshire, Summertown | | Lester Vallis Lester-Garland | 6/1884 | K |
| Glechoma hederacea | GB, VC113 Channel Islands, Saint Saviours Valley | | Lester Vallis Lester-Garland | 28/4/1900 | K |
| Glechoma hederacea | GB, VC17 Surrey, Saint Martha | | Lester Vallis Lester-Garland | 17/8/1918 | K |
| Glechoma hederacea | GB, VC113 Channel Islands, Jersey | | Lester Vallis Lester-Garland | 24/5/1901 | K |
| Glechoma hederacea | GB, VC19,VC20, Birchanger | | Lester Vallis Lester-Garland | 4/6/1922 | K |
| Groenlandia densa | GB, VC5 South Somerset, Templecombe | Lester Vallis Lester-Garland | | 16/7/1894 | K |
| Habenaria viride | | R L | Lester Vallis Lester-Garland | 8/1926 | K |
| Herminium monorchis | GB, VC33 East Gloucestershire, Painswick | | Lester Vallis Lester-Garland | 12/8/1926 | K |
| Hordeum marinum | GB, VC25 East Suffolk, Walberswick | | Lester Vallis Lester-Garland | 25/8/1920 | K |
| Hypochaeris glabra | GB, VC113 Channel Islands, Portelet Bay, Jersey | | Lester Vallis Lester-Garland | 30/5/1898 | K |
| Hypochaeris glabra | GB, VC25 East Suffolk, Southwold | | Lester Vallis Lester-Garland | 26/8/1920 | K |
| Hypochaeris glabra | GB, VC113 Channel Islands, Portelet Bay, Jersey | | Lester Vallis Lester-Garland | 4/6/1898 | K |
| Hyssopus officinalis | CH | | Lester Vallis Lester-Garland | | K |
| Isolepis cernua | GB, VC9 Dorset, Swanage | Lester Vallis Lester-Garland | | 9/7/1895 | SLBI |
| Juncus compressus | GB, VC17 Surrey, Salfords | Lester Vallis Lester-Garland | Botanical Exchange Club of The British Isles | 14/8/1919 | SLBI |
| Kickxia elatine subsp. elatine | GB, VC113 Channel Islands, Pont Marquet | Lester Vallis Lester-Garland | | 14/7/1901 | K |
| Kickxia elatine subsp. elatine | GB, VC9 Dorset, Steepleton | | Lester Vallis Lester-Garland | 8/1894 | K |
| Kickxia elatine subsp. elatine | GB, VC113 Channel Islands, Jersey | | Lester Vallis Lester-Garland | 4/7/1900 | K |
| Kickxia spuria | GB, VC9 Dorset, Isle of Purbeck | | Lester Vallis Lester-Garland | 1892 | K |
| Kickxia spuria | GB, VC9 Dorset, Isle of Purbeck | | Lester Vallis Lester-Garland | 24/7/1895 | K |