+ | Cynodon dactylon | GB, VC1 West Cornwall, Penzance | James Cunnack | Charles Bailey John Harbord Lewis | 8/1872 | MANCH |
+ | Cyperus longus | GB, VC1 West Cornwall, Helston,Kennack valley | James Cunnack | Charles Bailey | 9/1876 | MANCH |
+ | Cyperus longus | GB, VC1 West Cornwall, Lizard Point | James Cunnack | Charles Bailey | 8/1872 | MANCH |
| Cyperus longus | GB, VC1 West Cornwall, Lizard Point | James Cunnack | Augustin Ley | 8/1871 | BIRM |
+ | Cytisus scoparius subsp. maritimus | GB, VC1 West Cornwall, Lizard | James Cunnack | Charles Bailey | 14/5/1871 to 14/5/1879 | MANCH |
+ | Cytisus scoparius subsp. maritimus | GB, VC1 West Cornwall, Lizard Point | James Cunnack | Charles Bailey | 6/1876 | MANCH |
| Daucus maritimus | GB, VC1 West Cornwall, Loe Pool Bar | James Cunnack | Augustin Ley | 8/1874 | BIRM |
| Echium plantagineum | GB, VC1 West Cornwall, Saint Just | James Cunnack | William Hadden Beeby | 7/1878 | SLBI |
| Echium plantagineum | GB, VC1 West Cornwall, Saint Just | James Cunnack | William Hunt Painter | 7/1878 | ABS |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Penryn | James Cunnack | Charles Bailey | 7/1875 | MANCH |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Penryn | James Cunnack | Charles Bailey | 7/1875 | MANCH |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Penryn | James Cunnack | Charles Bailey | 8/1875 | MANCH |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Penryn | James Cunnack | Charles Bailey | 8/1875 | MANCH |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Penryn | James Cunnack | Charles Bailey | 8/1877 | MANCH |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Penryn | James Cunnack | William Hadden Beeby | 8/1875 | SLBI |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Penryn | James Cunnack | | 7/1875 | ABS |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Penryn | James Cunnack | Robert Large Baker | 8/1875 | BIRM |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Penryn | James Cunnack | Augustin Ley | 8/1875 | BIRM |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Chacewater | James Cunnack | Elizabeth Anne Lomax | 8/1874 | MANCH |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Penryn | James Cunnack | William Hunt Painter | 8/1877 | ABS |
| Erica ciliaris x tetralix = E. x watsonii | GB, Cornwall, Cornwall | James Cunnack | John Ralfs | 1876 | SLBI |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Penryn | James Cunnack | Allan Octavian Hume Frederick Townsend | 7/1875 | SLBI |
| Euphrasia brevipila | GB, VC1 West Cornwall, Helston | James Cunnack | Frederick Townsend | 28/9/1883 | SLBI |
| Euphrasia micrantha | GB, VC1 West Cornwall, Helston | James Cunnack | Botanical Exchange Club of The British Isles William Hadden Beeby | 8/1881 | SLBI |
| Euphrasia officinalis | GB, VC1 West Cornwall, Helston | James Cunnack | Botanical Exchange Club of The British Isles Augustin Ley James Cunnack | 8/1881 | BIRM |
| Euphrasia officinalis | GB, VC1 West Cornwall, Kynance Cove | James Cunnack | Botanical Exchange Club of The British Isles Augustin Ley James Cunnack | 6/1879 | BIRM |
| Euphrasia tetraquetra | GB, VC1 West Cornwall, Kynance Cove | James Cunnack | Botanical Exchange Club of The British Isles William Hadden Beeby | 6/1879 | SLBI |
| Euphrasia tetraquetra | GB, VC1 West Cornwall, Kynance Cove | James Cunnack | Botanical Exchange Club of The British Isles Allan Octavian Hume Frederick Townsend | 6/1879 | SLBI |
+ | Euphrasia tetraquetra x confusa | | James Cunnack | Charles Bailey | 6/1879 | MANCH |
| Galium molugo var. bakeri | GB, VC1 West Cornwall, Helston | James Cunnack | Botanical Exchange Club of The British Isles Augustin Ley | 7/1881 | BIRM |
+ | Genista pilosa | GB, VC1 West Cornwall, Lizard | James Cunnack | Charles Bailey | 6/1876 | MANCH |
+ | Genista pilosa | GB, VC1 West Cornwall, Mullion | James Cunnack | Charles Bailey | 5/1872 | MANCH |
+ | Genista pilosa | GB, VC1 West Cornwall, Kynance Cove | James Cunnack | Charles Bailey | 7/1876 | MANCH |
| Genista pilosa | GB, VC1 West Cornwall, Kynance | James Cunnack | Augustin Ley | 5/1871 | BIRM |
| Genista tinctoria | GB, VC1 West Cornwall, Mullion | James Cunnack | William Hadden Beeby | 7/1871 | SLBI |
| Geranium versicolor | GB, VC1 West Cornwall, Poltesco | James Cunnack | Augustin Ley | 7/1875 | BIRM |
| Herniaria ciliolata | GB, VC1 West Cornwall, Lizard | James Cunnack | Augustin Ley | 7/1871 | BIRM |
| Hypericum androsaemum x hircinum = H. x inodorum | GB, VC1 West Cornwall, Helston | James Cunnack | Charles Bailey | 7/1877 | MANCH |
| Hypericum androsaemum x hircinum = H. x inodorum | GB, VC1 West Cornwall, Helston | James Cunnack | Augustin Ley | 7/1876 | BIRM |
| Hypericum undulatum | GB, VC1 West Cornwall, Helston | James Cunnack | William Hadden Beeby | 8/1873 | SLBI |