| Ornithopus pinnatus | GB, VC1 West Cornwall, Saint Agnes, Scilly | James Cunnack | Charles Bailey William Hillhouse | | BIRM |
+ | Ophioglossum azoricum | GB, VC1 West Cornwall, Saint Martin's | James Cunnack | | 6/1877 | BIRM |
| Ophioglossum azoricum | GB, VC1 West Cornwall, Saint Martin's | James Cunnack | Augustin Ley | 6/1877 | BIRM |
| Mentha x piperita | GB, VC1 West Cornwall, Pengersick Castle | James Cunnack | | 7/1878 8/1878 | K |
| Mentha x piperita | GB, VC1 West Cornwall, Praa Sands | James Cunnack | | 8/1881 | K |
| Mentha pulegium | GB, VC1 West Cornwall, Helston | James Cunnack | Augustin Ley | 8/1872 | BIRM |
| 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 gracilis var. cardiaca | GB, Cornwall, Pengersick | James Cunnack | William Hadden Beeby | 8/1878 | SLBI |
| Mentha dumetorum | GB, VC1 West Cornwall, Pengersick Castle | | James Cunnack William Hunt Painter | 8/1878 | ABS |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Huntley Common? | Henry Bromwich | James Cunnack | 9/1878 | OXF |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Helston | James Cunnack | Botanical Exchange Club of The British Isles Charles Bailey | 8/1881 | MANCH |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Helston | James Cunnack | William Hadden Beeby | 8/1878 | SLBI |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Helston | James Cunnack | Charles Bailey John Isaac Briquet | 8/1878 | MANCH |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Helston | James Cunnack | Charles Bailey | 9/1878 | MANCH |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Helston | James Cunnack | Botanical Exchange Club of The British Isles John Durbin Gray | 9/1881 | CGE |
| 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, Mullion | James Cunnack | Charles Cardale Babington | 8/1882 | CGE |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Mullion | James Cunnack | Charles Bailey John Isaac Briquet | 9/1881 | MANCH |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Pengersick Castle | James Cunnack | Druce Herbarium, Oxford | 8/1878 | OXF |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Praa Green | James Cunnack | Charles Bailey John Isaac Briquet | 8/1881 | MANCH |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Praa Green | James Cunnack | Charles Bailey John Isaac Briquet | 8/1881 | MANCH |
| Lysimachia vulgaris | GB, VC1 West Cornwall, Helstone | James Cunnack | John Ralfs | | SLBI |
| Luzula forsteri x pilosa = L. x borreri | GB, VC1 West Cornwall, Constantine, near Helston | James Cunnack | Botanical Society & Exchange Club of the British Isles Charles Bailey James Cunnack | 7/1879 | MANCH |
| Luzula forsteri x pilosa = L. x borreri | GB, VC1 West Cornwall, Constantine, near Helston | James Cunnack | Botanical Exchange Club of The British Isles Augustin Ley James Cunnack | 7/1879 | BIRM |
| Lotus subbiflorus | GB, VC1 West Cornwall, Breage | James Cunnack | Charles Bailey John William Burton | 8/1875 | BIRM |
| Lotus subbiflorus | GB, VC1 West Cornwall, Helston | James Cunnack | William Hunt Painter | 8/1876 | ABS |
| Lobularia maritima | GB, VC1 West Cornwall, Saint Mary's, Scilly Isles | James Cunnack | William Hunt Painter | 7/1878 | ABS |
| Linaria supina | GB, VC2 East Cornwall, Saint Austell,St Blazey Bay | James Cunnack | | 7/1873 | SLBI |
+ | Lavatera cretica | GB, VC1 West Cornwall, Isles of Scilly,Tresco | James Cunnack | Charles Bailey James Cunnack | 7/1878 | MANCH |
| Lavatera cretica | GB, VC1 West Cornwall, Isles of Scilly,Tresco | James Cunnack | William Hadden Beeby | 9/1878 | SLBI |
| Lavatera cretica | GB, VC1 West Cornwall, Isles of Scilly,Tresco | James Cunnack | Augustin Ley | 7/1878 | BIRM |
| Lavatera cretica | GB, VC1 West Cornwall, Saint Agnes, Scilly | James Cunnack | William Hunt Painter | 7/1878 | ABS |
+ | Lavatera cretica | GB, VC1 West Cornwall, Scilly Isles,Saint Martin's | James Cunnack | Charles Bailey James Cunnack | 7/1878 | MANCH |
| Juniperus communis | GB, VC1 West Cornwall, Kynance | James Cunnack | Augustin Ley | 5/1871 | BIRM |
+ | Juncus pygmaeus | GB, VC1 West Cornwall, Helston | James Cunnack | Charles Bailey | 6/1874 | MANCH |