| Viola lactea | GB, VC3 South Devon, Chudleigh Knighton | Francis Morland Day | | 18/4/1950 | K |
| Viola lactea | GB, VC3 South Devon, Newton Abbot | Francis Morland Day William Keble Martin | | 23/4/1933 | K |
| Veronica catenata | GB, VC33 East Gloucestershire, Forthampton | Francis Morland Day | | 5/8/1949 | K |
| Thymus praecox subsp. arcticus | GB, VC3 South Devon, Dawlish Warren | Francis Morland Day | | 24/8/1936 | K |
| Thymus praecox subsp. arcticus | GB, VC3 South Devon, Dawlish Warren | Francis Morland Day | | 24/8/1936 | K |
| Stachys sylvatica x palustris = S. x ambigua | GB, VC3 South Devon, Brixham | Francis Morland Day | | 4/8/1935 | K |
| Phalaris arundinacea | GB, VC36 Herefordshire, Cradley | Francis Morland Day | | 26/6/1950 | K |
| Phalaris arundinacea | GB, VC36 Herefordshire, Eaton Bishop | Francis Morland Day | Charles Edward Hubbard | 12/6/1945 | K |
| Phalaris arundinacea | GB, VC37 Worcestershire, Grimley | Francis Morland Day | | 19/6/1945 | K |
| Phalaris arundinacea | GB, VC37 Worcestershire, Powick | Francis Morland Day | | 9/6/1945 | K |
| Mentha x verticillata var. rivalis | GB, VC3 South Devon, Drewsteignton | Francis Morland Day | | 10/8/1937 | K |
| Mentha x verticillata var. paludosa | GB, VC3 South Devon, Drewsteignton | Francis Morland Day | | 10/8/1937 | K |
| Mentha x verticillata var. rivalis | GB, VC3 South Devon, Stoke Gabriel | Francis Morland Day | | 2/9/1937 | K |
| Mentha x verticillata var. paludosa | GB, VC6 North Somerset, Glastonbury | Francis Morland Day | | 14/8/1948 | K |
| Mentha x verticillata var. paludosa | GB, VC34 West Gloucestershire, Bromsberrow | Francis Morland Day | | 28/9/1937 | K |
| Mentha x verticillata var. paludosa | GB, VC36 Herefordshire, Eastnor Park | Francis Morland Day | | 12/10/1937 | K |
| Mentha x piperita var. subcordata | GB, VC36 Herefordshire, Breinton | Francis Morland Day | | 27/8/1942 | K |
| Mentha x piperita | GB, VC37 Worcestershire, Alfrick | Francis Morland Day | | 22/9/1952 | K |
| Mentha x piperita | GB, VC37 Worcestershire, Alfrick | Francis Morland Day | | 11/9/1947 | K |
| Mentha x piperita | GB, VC37 Worcestershire, Malvern Wells | Francis Morland Day | | 16/8/1942 | K |
| Mentha x muelleriana | GB, VC3 South Devon, Salcombe GB, VC3 South Devon, Scabbacombe Cultivated | Francis Morland Day | | 20/8/1937 | K |
| Mentha x muelleriana | GB, VC3 South Devon, Scabbacombe | Francis Morland Day | | 13/8/1938 | K |
| Mentha x cordifolia | GB, VC3 South Devon, Newton Abbot | Francis Morland Day | | 9/1935 | K |
| Mentha x cordifolia | GB, VC3 South Devon, Paignton | Francis Morland Day | | 8/9/1941 | K |
| Mentha suaveolens | GB, VC3 South Devon, Brixham | Francis Morland Day | | 10/8/1938 | K |
| Mentha suaveolens | GB, VC36 Herefordshire, Breinton Common | Francis Morland Day | | 27/6/1939 | K |
| Mentha suaveolens | GB, VC37 Worcestershire, Mathon | Francis Morland Day | | 10/1935 | K |
| Mentha spicata x suaveolens = M. x villosa | GB, VC3 South Devon, Newton Abbot | Francis Morland Day | | 9/9/1935 | K |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC20 Hertfordshire, Sarratt | Francis Morland Day | | 31/7/1943 | K |
| Mentha spicata x suaveolens = M. x villosa | GB, VC22 Berkshire, Compton | Francis Morland Day | | 19/8/1952 | K |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC25 East Suffolk, Beccles | Francis Morland Day | | 5/9/1938 | K |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC25 East Suffolk, Holton | Francis Morland Day | | 3/9/1938 | K |
| Mentha spicata x suaveolens = M. x villosa | GB, VC23,VC33, Little Barrington | Francis Morland Day | | 23/8/1937 | K |
| Mentha spicata x suaveolens = M. x villosa var. nicholsoniana | GB, VC36 Herefordshire, Breinton | Francis Morland Day | | 27/8/1942 | K |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC36 Herefordshire, Colwall | Francis Morland Day | | 22/8/1940 | K |
| Mentha spicata x suaveolens = M. x villosa | GB, VC36 Herefordshire, Cradley | Francis Morland Day | | 23/8/1940 | K |
| Mentha spicata x suaveolens = M. x villosa | GB, VC36 Herefordshire, Cradley | Francis Morland Day | | 23/7/1941 | K |
| Mentha spicata x suaveolens = M. x villosa var. nicholsoniana | GB, VC36 Herefordshire, Dinedor Camp | Francis Morland Day | | | K |
| Mentha spicata x suaveolens = M. x villosa | GB, VC36 Herefordshire, Much Marcle | Francis Morland Day | | | K |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC37 Worcestershire, Malvern | Francis Morland Day | | 3/7/1934 | K |