| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC10 Isle of Wight, Binstead | Mary Louisa Wedgwood | Druce Herbarium, Oxford | 1908 | OXF |
| Thalictrum minus | GB, VC29 Cambridgeshire, Fleam Dyke | Mary Louisa Wedgwood | Job Edward Lousley | 14/7/1931 | SLBI |
| Ilex aquifolium | GB, VC17 Surrey, Thursley | Mary Louisa Wedgwood | S A Chambers | 9/1929 | SLBI |
| Hieracium surrejanum | GB, VC17 Surrey, Brook, Witley | Mary Louisa Wedgwood | | 3/8/1924 | SLBI |
| Stachys alpina | GB, VC17 Surrey, Reigate Cultivated | Joanna Charlotte Davy | Mary Louisa Wedgwood | 1934 | K |
| Galeopsis tetrahit | GB, VC7 North Wiltshire, Marlborough | Mary Louisa Wedgwood | J Fraser | 14/5/1933 | K |
| Glebionis segetum | GB, VC17 Surrey, Ripley | Mary Louisa Wedgwood | J Fraser | 1933 | K |
| Glechoma hederacea | GB, VC7 North Wiltshire, Marlborough | Mary Louisa Wedgwood | J Fraser | 5/5/1933 | K |
| Glechoma hederacea | GB, VC17 Surrey, Esher | J Fraser Mary Louisa Wedgwood | | 12/6/1932 | K |
| Linaria vulgaris | GB, VC17 Surrey, Ash Vale | Job Edward Lousley Mary Louisa Wedgwood | J Fraser | 6/9/1931 | K |
| Mentha aquatica | GB, VC38 Warwickshire, Atherstone | Mary Louisa Wedgwood | J Fraser | 9/8/1927 | K |
| Mentha aquatica | GB, VC17 Surrey, Dunsfold | J Fraser Mary Louisa Wedgwood | J Fraser | 14/9/1925 | K |
| Mentha arvensis var. allionii | GB, VC17 Surrey, Kew Cultivated GB, VC40 Shropshire, Ironbridge | Mary Louisa Wedgwood | Mary Louisa Wedgwood | 16/8/1931 | K |
| Mentha arvensis | GB, VC34 West Gloucestershire, Symonds Yat | Mary Louisa Wedgwood | J Fraser | 23/9/1926 | K |
| Mentha arvensis | GB, VC17 Surrey, Dunsfold | J Fraser Mary Louisa Wedgwood | J Fraser | 14/9/1925 | K |
| Mentha gentilis var. wirtgeniana | GB, VC34 West Gloucestershire, Symonds Yat | Harry Joseph Riddelsdell Mary Louisa Wedgwood | J Fraser | 1925 | K |
| Mentha gentilis var. wirtgeniana | GB, VC36 Herefordshire, Ross | Mary Louisa Wedgwood | J Fraser | 9/1926 | K |
| Mentha pulegium | GB, VC17 Surrey, Dunsfold | J Fraser Mary Louisa Wedgwood | J Fraser | 14/9/1925 | K |
| Mentha spicata | GB, VC17 Surrey, Gomshall | J Fraser Mary Louisa Wedgwood | J Fraser | 31/8/1925 | K |
| Mentha spicata x suaveolens = M. x villosa var. nicholsoniana | GB, VC41 Glamorganshire, Cardiff, Canton | Mary Louisa Wedgwood Royston Leslie Smith | J Fraser | 9/1926 | K |
| Mentha spicata x suaveolens = M. x villosa | GB, VC17 Surrey, Reigate Heath | J Fraser Mary Louisa Wedgwood | J Fraser | 14/9/1925 | K |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC17 Surrey, Dunsfold | J Fraser Mary Louisa Wedgwood | J Fraser | 14/9/1925 | K |
| Mentha suaveolens x longifolia = M. x rotundifolia | GB, VC17 Surrey, Kew Cultivated GB, VC2 East Cornwall, Egloshayle | J Fraser | Job Edward Lousley Mary Louisa Wedgwood | 17/8/1931 | SLBI |
| Mentha x verticillata var. rivalis | GB, VC34 West Gloucestershire, Symonds Yat | Harry Joseph Riddelsdell Mary Louisa Wedgwood | J Fraser | 9/1925 | K |
| Plantago lagopus | GB, VC41 Glamorganshire, Splott | Mary Louisa Wedgwood | J Fraser | 6/1926 | K |
| Rosa canina var. dumalis | GB, VC17 Surrey, Box Hill | J Fraser Mary Louisa Wedgwood | | 11/8/1929 | SLBI |
| Veronica alpina | GB, VC92 South Aberdeenshire, Lochnagar | Alfred Webster Mary Louisa Wedgwood | J Fraser | 1918 | K |
| Mentha suaveolens | GB, VC34,VC36, Symonds Yat | Mary Louisa Wedgwood | | 9/1925 | K |
| Rumex longifolius | GB, VC92 South Aberdeenshire, Alford, Haughton | Mary Louisa Wedgwood | Richard Spiers Standen | 23/8/1910 | BIRM |
| Rumex longifolius x crispus = R. x propinquus | GB, VC92 South Aberdeenshire, Alford, Haughton | Mary Louisa Wedgwood | Richard Spiers Standen | 23/8/1910 | BIRM |
| Stellaria palustris | GB, VC21 Middlesex, Walton Bridge | Mary Louisa Wedgwood | Patrick Martin Hall | 8/7/1931 | SLBI |
| Stellaria palustris | GB, VC21 Middlesex, Walton Bridge | Mary Louisa Wedgwood | Patrick Martin Hall | 8/7/1931 | SLBI |
| Polygala amarella | GB, VC15 East Kent, Wye | Mary Louisa Wedgwood | Douglas Montague Heath | 6/1919 | BIRM |
| Anagallis arvensis | IE, VCH39 Co. Antrim, Larne | Mary Louisa Wedgwood | Job Edward Lousley | 12/7/1930 | SLBI |
| Cephalanthera damasonium | GB, VC12 North Hampshire, Bordean | Mary Louisa Wedgwood | Job Edward Lousley | 14/6/1931 | SLBI |
| Galium parisiense | GB, VC16 West Kent, Farningham | Job Edward Lousley Mary Louisa Wedgwood | Job Edward Lousley | 4/6/1931 28/7/1931 | SLBI |
| Prunella laciniata | GB, VC17 Surrey, Pyrford | Mary Louisa Wedgwood | Job Edward Lousley | 7/1930 | SLBI |
| Sorbus aria | GB, VC17 Surrey, Reigate Hill | | Job Edward Lousley Mary Louisa Wedgwood | 2/9/1933 | SLBI |
| Sorbus aucuparia | GB, VC96 East Inverness-shire, Inverness | | Job Edward Lousley Mary Louisa Wedgwood | 20/7/1931 20/8/1931 | SLBI |
| Sorbus intermedia | GB, VC96 East Inverness-shire, Inverness | | Job Edward Lousley Mary Louisa Wedgwood | 22/9/1930 | SLBI |