| Callitriche truncata | GB, VC6 North Somerset, Kingston Seymour | Cecil Ivry Sandwith Noel Yvri Sandwith | | 24/9/1951 27/9/1951 | K |
| Ajuga reptans | GB, VC6 North Somerset, Leigh Woods | Cecil Ivry Sandwith Noel Yvri Sandwith | | 15/5/1927 | K |
| Veronica scutellata | GB, VC6 North Somerset, Nailsea | Cecil Ivry Sandwith Noel Yvri Sandwith | | 1/7/1947 | K |
| Veronica catenata | GB, VC6 North Somerset, Portbury | Cecil Ivry Sandwith Noel Yvri Sandwith | | 19/6/1929 | K |
| Mentha gentilis var. gracilis | GB, VC6 North Somerset, Sharpham Moor | Cecil Ivry Sandwith Noel Yvri Sandwith | | 13/9/1933 | K |
| Clinopodium ascendens | GB, VC6 North Somerset, Tickenham | Cecil Ivry Sandwith Noel Yvri Sandwith | | 11/8/1956 | K |
| Cuscuta epithymum | GB, VC6 North Somerset, Tickenham | Cecil Ivry Sandwith Noel Yvri Sandwith | | 24/9/1944 | K |
| Plantago lanceolata var. anthoviridis | GB, VC6 North Somerset, Tickenham | Cecil Ivry Sandwith Noel Yvri Sandwith | | 15/5/1951 | K |
| Callitriche obtusangula | GB, VC6 North Somerset, Weston in Gordano | Cecil Ivry Sandwith Noel Yvri Sandwith | | 3/6/1956 | K |
| Veronica beccabunga | GB, VC6 North Somerset, Weston in Gordano | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/6/1930 | K |
| Stachys palustris | GB, VC9 Dorset, Portland | Cecil Ivry Sandwith Noel Yvri Sandwith | | 12/7/1928 | K |
| Kickxia spuria | GB, VC11 South Hampshire, Hayling Island | Cecil Ivry Sandwith Noel Yvri Sandwith | | 11/9/1927 | K |
| Festuca arundinacea | GB, VC11 South Hampshire, Redbridge | Cecil Ivry Sandwith Noel Yvri Sandwith | | 8/7/1928 | K |
| Teucrium chamaedrys | GB, VC11 South Hampshire, Upham | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/1915 | K |
| Galeopsis angustifolia | GB, VC12 North Hampshire, East Tisted | Cecil Ivry Sandwith Noel Yvri Sandwith | | 22/8/1915 | K |
| Linaria vulgaris x repens = L. x sepium | GB, VC14 East Sussex, Lewes | Cecil Ivry Sandwith Noel Yvri Sandwith | | 24/8/1930 | K |
| Veronica longifolia | GB, VC18 South Essex, Dagenham | Cecil Ivry Sandwith Noel Yvri Sandwith | | 27/9/1936 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC28 West Norfolk, Ring Mere | Cecil Ivry Sandwith Noel Yvri Sandwith | Noel Yvri Sandwith | 21/8/1926 | K |
| Scrophularia umbrosa | GB, VC33 East Gloucestershire, Compton Abdale | Cecil Ivry Sandwith Noel Yvri Sandwith | | 10/9/1936 | K |
| Scrophularia umbrosa | GB, VC33 East Gloucestershire, Compton Abdale | Cecil Ivry Sandwith Noel Yvri Sandwith | | 10/9/1936 | K |
| Scrophularia umbrosa | GB, VC33 East Gloucestershire, Compton Abdale | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/10/1936 | K |
| Astragalus danicus | GB, VC33 East Gloucestershire, Hatherop | Cecil Ivry Sandwith Noel Yvri Sandwith | | 6/1918 | K |
| Linaria repens | GB, VC34 West Gloucestershire, Avonmouth | Cecil Ivry Sandwith Noel Yvri Sandwith | | 21/8/1949 | K |
| Linaria vulgaris x repens = L. x sepium | GB, VC34 West Gloucestershire, Avonmouth | Cecil Ivry Sandwith Noel Yvri Sandwith | | 12/8/1956 | K |
| Linaria vulgaris | GB, VC34 West Gloucestershire, Avonmouth Docks, Bristol | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/1935 | K |
| Linaria vulgaris | GB, VC34 West Gloucestershire, Avonmouth Docks, Bristol | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/1935 | K |
| Teucrium resupinatum | GB, VC34 West Gloucestershire, Bristol | Cecil Ivry Sandwith Noel Yvri Sandwith | | 25/10/1925 | K |
| Linaria repens | GB, VC34 West Gloucestershire, Chittening Warth | Cecil Ivry Sandwith Noel Yvri Sandwith | | 12/8/1956 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC34 West Gloucestershire, Golden Valley | Cecil Ivry Sandwith Noel Yvri Sandwith | | 11/9/1933 | K |
| Verbascum chaixii subsp. chaixii | GB, VC34 West Gloucestershire, Mangotsfield | Cecil Ivry Sandwith Noel Yvri Sandwith | | 10/7/1949 | K |
| Verbascum chaixii subsp. chaixii | GB, VC34 West Gloucestershire, Mangotsfield | Cecil Ivry Sandwith Noel Yvri Sandwith | | 10/7/1949 | K |
| Veronica catenata | GB, VC34 West Gloucestershire, Wickwar | Cecil Ivry Sandwith Noel Yvri Sandwith | | 6/9/1936 | K |
| Viola lactea x riviniana | GB, VC34 West Gloucestershire, Yate Lower Common | Cecil Ivry Sandwith Noel Yvri Sandwith | | 16/5/1948 | K |
| Mentha arvensis x spicata = M. x gracilis | GB, VC6,VC34, Bedminster | Cecil Ivry Sandwith Noel Yvri Sandwith | Noel Yvri Sandwith | 8/9/1930 | K |
| Campanula patula | GB, VC37 Worcestershire, Elmley Lovett | Cecil Ivry Sandwith Noel Yvri Sandwith | | 3/8/1936 | K |
| Stachys palustris | GB, VC45 Pembrokeshire, Pembroke | Cecil Ivry Sandwith Noel Yvri Sandwith | | 8/8/1931 | K |
| Veronica agrestis | GB, VC45 Pembrokeshire, Saint David's | Cecil Ivry Sandwith Noel Yvri Sandwith | | 17/8/1931 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC46 Cardiganshire, Mount | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/9/1932 | K |
| Groenlandia densa | GB, VC54 North Lincolnshire, Haxey | Cecil Ivry Sandwith Noel Yvri Sandwith | | 8/1939 | K |
| Callitriche truncata | GB, VC56 Nottinghamshire, Clumber Park | Cecil Ivry Sandwith Noel Yvri Sandwith | | 10/9/1918 | K |