| Mentha spicata | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey | Allan Octavian Hume | 30/8/1899 | SLBI |
| Artemisia stelleriana | GB, VC1 West Cornwall, Marazion | Frederick Hamilton Davey | Watson Botanical Exchange Club Frederick Hamilton Davey | 15/9/1906 | SLBI |
| Barbarea verna | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey | Watson Botanical Exchange Club | 4/5/1903 | SLBI |
| Carex arenaria | GB, VC1 West Cornwall, Perranporth | Frederick Hamilton Davey | Watson Botanical Exchange Club Frederick Hamilton Davey William Charles Barton | 2/6/1911 | BM |
| Carum carvi | GB, VC1 West Cornwall, Falmouth Docks | Frederick Hamilton Davey | Watson Botanical Exchange Club | 21/5/1904 | SLBI |
| Fumaria reuteri | GB, VC1 West Cornwall, Gilley Tresamble, Perran-ar-worthal | Frederick Hamilton Davey | Watson Botanical Exchange Club Chambre Corker Vigurs Frederick Hamilton Davey | 8/10/1904 | ABS |
| Gentianella campestris | GB, VC1 West Cornwall, Connor Downs | Frederick Hamilton Davey | Watson Botanical Exchange Club | 15/9/1905 | K |
| Geranium phaeum | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey | Watson Botanical Exchange Club Frederick Hamilton Davey | 26/5/1903 | SLBI |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC1 West Cornwall, Perranarworthal | Frederick Hamilton Davey | Watson Botanical Exchange Club Charles Edward Britton Frederick Hamilton Davey | 16/8/1911 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Porkellis | Frederick Hamilton Davey | Watson Botanical Exchange Club Albert John Crosfield | 9/9/1907 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey | Watson Botanical Exchange Club Frederick Hamilton Davey | 19/9/1902 | CGE |
| Veronica peregrina | GB, VC1 West Cornwall, Truro,Killiow | Frederick Hamilton Davey | Watson Botanical Exchange Club Albert Bruce Jackson Frederick Hamilton Davey | 4/8/1906 | K |
| Viola canina | GB, VC1 West Cornwall, Connor Downs | Frederick Hamilton Davey | Watson Botanical Exchange Club Douglas Montague Heath John Frederick Rayner | 27/5/1907 | BIRM |
| Carex paniculata x remota = C. x boenninghauseniana | GB, VC1 West Cornwall, Barras Moor, Ponsanooth | Frederick Hamilton Davey | Watson Botanical Exchange Club Charles Bailey Frederick Hamilton Davey | 6/6/1905 | MANCH |
| Eriophorum angustifolium | GB, VC1 West Cornwall, Gwennap | Frederick Hamilton Davey | Watson Botanical Exchange Club Charles Bailey Frederick Hamilton Davey | 18/5/1906 | MANCH |
+ | Gentianella campestris | GB, VC1 West Cornwall, Connor Downs | Frederick Hamilton Davey | Watson Botanical Exchange Club Charles Bailey Frederick Hamilton Davey | 15/9/1905 | MANCH |
+ | Gentianella campestris | GB, VC1 West Cornwall, Connor Downs | Frederick Hamilton Davey | Watson Botanical Exchange Club Charles Bailey Frederick Hamilton Davey | 17/9/1907 | MANCH |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Feock,Carnon Downs | Frederick Hamilton Davey | Watson Botanical Exchange Club Charles Bailey | 9/8/1907 | MANCH |
+ | Mentha pulegium | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey | Charles Bailey | 1/10/1904 | MANCH |
+ | Mentha spicata x suaveolens = M. x villosa | GB, VC1 West Cornwall, Gwennap | Frederick Hamilton Davey | Charles Bailey | 30/8/1911 | MANCH |
| Potentilla erecta x reptans = P. x italica | GB, VC1 West Cornwall, Perranarworthal | Frederick Hamilton Davey | Watson Botanical Exchange Club Charles Bailey | 6/1912 | MANCH |
+ | Spergula arvensis | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey | Watson Botanical Exchange Club Charles Bailey Frederick Hamilton Davey | 12/10/1905 | MANCH |
| Carex nigra | GB, VC1 West Cornwall, Crowan Reservoir | Frederick Hamilton Davey | Allan Octavian Hume | 22/6/1903 | SLBI |
| Potamogeton polygonifolius | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey | Allan Octavian Hume Arthur Bennett | 6/6/1906 | SLBI |
| Ulex gallii | GB, VC1 West Cornwall, Gwennap | Frederick Hamilton Davey | Allan Octavian Hume | 28/9/1905 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Gwennap | Frederick Hamilton Davey Spencer Henry Bickham | Spencer Henry Bickham | 1/10/1904 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Praa Sands | Frederick Hamilton Davey | Watson Botanical Exchange Club Frederick Hamilton Davey Spencer Henry Bickham | 16/9/1911 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC1 West Cornwall, Perranarworthal | Frederick Hamilton Davey | Watson Botanical Exchange Club Frederick Hamilton Davey Spencer Henry Bickham | 3/8/1911 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey | Spencer Henry Bickham | 23/8/1903 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey Spencer Henry Bickham | Spencer Henry Bickham | 1/10/1904 | CGE |
| Mentha pulegium | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey Spencer Henry Bickham | Watson Botanical Exchange Club Allan Octavian Hume Spencer Henry Bickham | 1/10/1904 | SLBI |
| Mentha pulegium | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey Spencer Henry Bickham | | 1/10/1904 | K |
| Mentha spicata | GB, VC1 West Cornwall, Bissoe | Frederick Hamilton Davey Spencer Henry Bickham | Watson Botanical Exchange Club Albert Bruce Jackson Spencer Henry Bickham | 1/10/1904 | K |
| Mentha spicata x suaveolens = M. x villosa | GB, VC1 West Cornwall, Bissoe | Frederick Hamilton Davey Spencer Henry Bickham | | 1/10/1904 | CGE |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC1 West Cornwall, Tresamble, Gwennap | Frederick Hamilton Davey Spencer Henry Bickham | Spencer Henry Bickham | 1/10/1904 | CGE |
| Cardamine trifolia | GB, VC3 South Devon, Dartmouth Cultivated | Frederick Hamilton Davey | Allan Octavian Hume Frederick Hamilton Davey | 6/4/1911 | SLBI |
| Achillea distans subsp. tanacetifolia | GB, VC2 East Cornwall, Par | Frederick Hamilton Davey | Allan Octavian Hume | 19/7/1902 | SLBI |
| Achillea distans subsp. tanacetifolia | GB, VC2 East Cornwall, Par | Frederick Hamilton Davey | Allan Octavian Hume | 19/7/1902 | SLBI |
| Achillea ptarmica | GB, VC1 West Cornwall, Perranwell Station | Frederick Hamilton Davey | Allan Octavian Hume | 23/8/1899 | SLBI |
| Aconitum napellus | GB, VC1 West Cornwall, Pengreep | Frederick Hamilton Davey | Allan Octavian Hume | 23/7/1900 | SLBI |