| Mentha spicata | GB, VC1 West Cornwall, Hick's Mill, Gwennap | William Charles Barton | Albert Bruce Jackson William Charles Barton | 19/8/1911 | K |
+ | Mentha spicata x suaveolens = M. x villosa | GB, VC1 West Cornwall, Hick's Mill, Gwennap | Frederick Hamilton Davey | Watson Botanical Exchange Club Charles Bailey | 30/8/1911 | MANCH |
+ | Mentha spicata x suaveolens = M. x villosa | GB, VC1 West Cornwall, Hick's Mill, Gwennap | Frederick Hamilton Davey | Watson Botanical Exchange Club Charles Bailey | 30/8/1911 | MANCH |
| Mentha x cordifolia | GB, VC1 West Cornwall, Hick's Mill, Gwennap | Frederick Hamilton Davey | Watson Botanical Exchange Club Albert Bruce Jackson Frederick Hamilton Davey | 24/8/1911 | K |
| Mentha x piperita | GB, VC1 West Cornwall, Holywell Bay | Edgar Thurston | Edgar Thurston | 22/8/1916 | K |
| Mentha spicata | GB, VC1 West Cornwall, Isles of Scilly | | | | K |
| Mentha pulegium | GB, VC1 West Cornwall, Kennall Valley | Allan Octavian Hume | Allan Octavian Hume | 8/8/1899 | SLBI |
| Mentha x maximilianea | GB, VC1 West Cornwall, Kingswear | John Kenneth Morton | John Kenneth Morton | 8/1955 | K |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC1 West Cornwall, Lamorna | William Curnow | | 8/1879 | CGE |
+ | Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC1 West Cornwall, Lamorna | William Curnow | | 8/1879 | BIRM |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC1 West Cornwall, Lamorna | Richard Barker Ullman | Richard Barker Ullman | 1912 to 1913 | SLBI |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC1 West Cornwall, Lamorna | Richard Barker Ullman | Richard Barker Ullman | 1912 to 1913 | SLBI |
+ | Mentha citrata | GB, VC1 West Cornwall, Lamorna | William Curnow | Botanical Exchange Club | 8/1879 | MANCH |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Lamorna Cove | William Curnow | William Hunt Painter | 9/1880 | ABS |
+ | Mentha suaveolens x longifolia = M. x rotundifolia | GB, VC1 West Cornwall, Lamorna Cove | William Curnow | Charles Bailey | 9/1889 | MANCH |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC1 West Cornwall, Land's End | John Ralfs | Botanical Exchange Club William Hunt Painter | 6/9/1878 | ABS |
+ | Mentha arvensis x aquatica = M. x verticillata | GB, VC1 West Cornwall, Land's End | William Booth Waterfall | Charles Bailey | 9/1878 | MANCH |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Lilant | Schill | Schill | 22/8/1912 | MANCH |
+ | Mentha suaveolens x longifolia = M. x rotundifolia | GB, VC1 West Cornwall, Lilant | | Schill | 22/8/1912 | MANCH |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Lizard | James Cunnack | Charles Cardale Babington | 7/1878 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Lizard Cultivated | William Curnow | | | OXF |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Lizard | Frederick Hamilton Davey | Frederick Hamilton Davey | 16/9/1911 | MANCH |
| Mentha pulegium | GB, VC1 West Cornwall, Lizard | James Cunnack | William Hunt Painter | 9/1878 | ABS |
+ | Mentha pulegium | GB, VC1 West Cornwall, Lizard Point | James Cunnack | Charles Bailey | 8/1877 | MANCH |
| Mentha pulegium | GB, VC1 West Cornwall, Lizard Point | James Cunnack | James Cunnack | 10/1878 | SLBI |
| Mentha pulegium | GB, VC1 West Cornwall, Lizard Point | James Cunnack | Botanical Exchange Club of The British Isles Shrewsbury Public Library | 8/1881 | K |
+ | Mentha pulegium | GB, VC1 West Cornwall, Lizard Point | James Cunnack | Charles Bailey John Harbord Lewis Susannah Mary Payne | 20/9/1870 | MANCH |
+ | Mentha pulegium | GB, VC1 West Cornwall, Lizard Point | James Cunnack | Charles Bailey Susannah Mary Payne | 8/1881 | MANCH |
| Mentha aquatica | GB, VC1 West Cornwall, Loe Pool | Allan Octavian Hume | Allan Octavian Hume | 18/7/1899 | SLBI |
| Mentha aquatica | GB, VC1 West Cornwall, Loe Pool | Allan Octavian Hume | Allan Octavian Hume | 18/7/1899 | SLBI |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC1 West Cornwall, Loe Pool | Allan Octavian Hume | Allan Octavian Hume | 24/7/1899 | SLBI |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC1 West Cornwall, Loe Pool | Allan Octavian Hume | Allan Octavian Hume | 24/7/1899 | SLBI |
| Mentha arvensis x spicata = M. x gracilis | GB, VC1 West Cornwall, Loe Pool | Christopher Donald Pigott | | 8/1947 | CGE |
| Mentha longifolia | GB, VC1 West Cornwall, Marazion Green | William Curnow | Croydon Natural History and Scientific Society Henry Franklin Parsons | 8/1868 | SLBI |
| Mentha aquatica | GB, VC1 West Cornwall, Marazion Marsh | D A J Little | | 30/7/1941 | ABS |
| Mentha pulegium | GB, VC1 West Cornwall, Mawgan | Daniel Oliver | | 1869 | K |
| Mentha x piperita var. sylvestris | GB, VC1 West Cornwall, Mawgan Porth | Paul Green | | 10/2/2000 | K |
| Mentha pulegium | GB, VC1 West Cornwall, Morvah | Henry Boyden | Henry Boyden | 9/1892 | SHYB |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Mount's Bay | William Curnow | | 9/1878 | OXF |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Mousehole | William Curnow | Charles Bailey Rex Alan Henry Graham | 9/1878 | MANCH |