| Scrophularia umbrosa | GB, VC17 Surrey, Kew Gardens Cultivated GB, VC8 South Wiltshire, Shalbourne | Noel Yvri Sandwith | | 12/7/1927 8/8/1928 | K |
| Scrophularia auriculata | GB, VC17 Surrey, Kew | Noel Yvri Sandwith | | 2/8/1927 | K |
| Scrophularia auriculata | GB, VC17 Surrey, Kew | Noel Yvri Sandwith | | 2/8/1927 | K |
| Scrophularia auriculata | GB, VC17 Surrey, Kew GB, VC17 Surrey, Richmond | Noel Yvri Sandwith | | 2/8/1927 | K |
| Torilis arvensis | GB, VC12 North Hampshire, Odiham | Noel Yvri Sandwith | | 14/8/1927 | K |
| Torilis arvensis | GB, VC12 North Hampshire, Odiham | Noel Yvri Sandwith | | 14/8/1927 | K |
| Mentha aquatica | GB, VC17 Surrey, Cut Mill Pond | J Fraser Noel Yvri Sandwith | | 21/8/1927 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC17 Surrey, Wisley | J Fraser Noel Yvri Sandwith | | 21/8/1927 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC22 Berkshire, Wytham | Noel Yvri Sandwith | | 27/8/1927 | 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 |
| Stachys palustris | GB, VC9 Dorset, Portland | Cecil Ivry Sandwith Noel Yvri Sandwith | | 12/7/1928 | K |
| Veronica catenata | GB, VC6 North Somerset, Portbury | Cecil Ivry Sandwith Noel Yvri Sandwith | | 19/6/1929 | K |
| Festuca arundinacea | GB, VC17 Surrey, Ham | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 3/7/1929 | K |
| Festuca arundinacea | GB, VC17 Surrey, Ham | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 3/7/1929 | K |
| Plantago major subsp. major | GB, VC17 Surrey, Ham | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 3/7/1929 | K |
| Plantago major subsp. major | GB, VC17 Surrey, Ham | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 3/7/1929 | K |
| Scrophularia umbrosa | GB, VC17 Surrey, Kew Cultivated | Noel Yvri Sandwith | | 19/8/1929 | K |
| Scrophularia umbrosa | GB, VC17 Surrey, Kew Cultivated | Noel Yvri Sandwith | | 19/8/1929 | K |
| Scrophularia umbrosa | GB, VC17 Surrey, Kew Gardens Cultivated | Noel Yvri Sandwith | | 19/8/1929 | K |
| Veronica beccabunga | GB, VC6 North Somerset, Weston in Gordano | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/6/1930 | K |
| Callitriche intermedia subsp. hamulata | GB, VC17 Surrey, Richmond Park | Herbert Kenneth Airy Shaw Noel Yvri Sandwith Victor Samuel Summerhayes | | 17/7/1930 | K |
| Callitriche stagnalis | GB, VC17 Surrey, Richmond Park | Herbert Kenneth Airy Shaw Noel Yvri Sandwith Victor Samuel Summerhayes | | 17/7/1930 | K |
| Scrophularia auriculata | GB, VC17 Surrey, Richmond Park | Herbert Kenneth Airy Shaw Noel Yvri Sandwith Victor Samuel Summerhayes | | 17/7/1930 | K |
| Veronica scutellata | GB, VC17 Surrey, Richmond Park | Herbert Kenneth Airy Shaw Noel Yvri Sandwith Victor Samuel Summerhayes | | 17/7/1930 | K |
| Linaria vulgaris x repens = L. x sepium | GB, VC14 East Sussex, Lewes | Cecil Ivry Sandwith Noel Yvri Sandwith | | 24/8/1930 | 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 |
| Veronica arvensis | GB, VC17 Surrey, Richmond Park | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 12/5/1931 | K |
| Veronica hederifolia | GB, VC17 Surrey, Richmond Park | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 12/5/1931 | K |
| Lamium galeobdolon subsp. montanum | GB, VC24 Buckinghamshire, Bradenham | Noel Yvri Sandwith | | 30/5/1931 | K |
| Lamium galeobdolon subsp. montanum | GB, VC24 Buckinghamshire, Bradenham | Noel Yvri Sandwith | Noel Yvri Sandwith | 30/5/1931 | 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 |
| Sorbus whiteana | GB, VC34 West Gloucestershire, Clifton Down | George Taylor Noel Yvri Sandwith | Job Edward Lousley | 20/9/1931 | SLBI |
| Galeopsis angustifolia | GB, VC14 East Sussex, Pevensey | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 30/7/1932 | K |
| Galeopsis angustifolia | GB, VC14 East Sussex, Pevensey | Edgar Wolston Bertram Handsley Milne-Redhead Noel Yvri Sandwith | | 30/7/1932 | K |
| Mentha x verticillata var. rivalis | GB, VC15 East Kent, Dungeness | Arthur Hugh Garfit Alston Noel Yvri Sandwith | | 8/1932 | K |
| Mentha x verticillata var. rivalis | GB, VC15 East Kent, Dungeness | Arthur Hugh Garfit Alston Noel Yvri Sandwith | | 8/1932 | K |
| Mentha aquatica x spicata = M. x piperita | GB, VC46 Cardiganshire, Mount | Cecil Ivry Sandwith Noel Yvri Sandwith | | 9/1932 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC42 Breconshire, Brecon | Arthur Hugh Garfit Alston Noel Yvri Sandwith | | 9/1932 | K |