| Epipactis palustris | AT | Karl-Heinz Rechinger | Watson Botanical Exchange Club Isaac A Helsby | 27/6/1926 | SLBI |
| Utricularia minor | AT, Graz, Steiermark | Karl-Heinz Rechinger | Watson Botanical Exchange Club Isaac A Helsby | 1/9/1926 | SLBI |
| Coriandrum sativum | AT, Vienna | Karl-Heinz Rechinger | Watson Botanical Exchange Club Isaac A Helsby | 22/6/1926 | SLBI |
| Salix repens var. argentea | FR, Pas de Calais | Job Edward Lousley | Watson Botanical Exchange Club Job Edward Lousley | 31/5/1928 | SLBI |
| Ajuga chamaepitys | GB, VC30,VC20, Tingley Wood | Joseph Edward Little | Watson Botanical Exchange Club | 7/1909 6/1929 | SLBI |
| 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 |
| Daucus maritimus | GB, VC1 West Cornwall, Bedruthan Steps | James Walter White | Watson Botanical Exchange Club Ida Mary Roper Job Edward Lousley | 1/7/1912 | SLBI |
| Daucus maritimus | GB, VC1 West Cornwall, Bedruthan Steps | James Walter White | Watson Botanical Exchange Club Ida Mary Roper | 1/7/1932 | SLBI |
| 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 |
| Plantago lanceolata | GB, VC1 West Cornwall, Black Stear | Henry Elliott Fox | Watson Botanical Exchange Club Augustin Ley | 2/7/1910 | BIRM |
| Hypericum undulatum | GB, VC1 West Cornwall, Carnkief | Francis Rilstone | Watson Botanical Exchange Club Francis Rilstone Job Edward Lousley | 8/1928 | SLBI |
| Polygala serpyllifolia | GB, VC1 West Cornwall, Carnmarth Hill | Frederick Hamilton Davey | Watson Botanical Exchange Club Augustin Ley Frederick Hamilton Davey | 30/9/1909 | BIRM |
| Mentha spicata x suaveolens = M. x villosa | GB, VC1 West Cornwall, Carnon Downs, Kea | Frederick Hamilton Davey | Watson Botanical Exchange Club Frederick Hamilton Davey | 9/10/1907 | CGE |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Chacewater | James Henry Augustus Steuart | Watson Botanical Exchange Club Harold Stuart Thompson National Museum of Wales | 9/1894 | BIRM |
| Erica ciliaris x tetralix = E. x watsonii | GB, VC1 West Cornwall, Chacewater | James Henry Augustus Steuart | Watson Botanical Exchange Club National Museum of Wales | 9/1894 | SLBI |
| Gentianella campestris | GB, VC1 West Cornwall, Connor Downs | Frederick Hamilton Davey | Watson Botanical Exchange Club | 15/9/1905 | K |
+ | 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 |
| 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 |
| Daucus maritimus | GB, VC1 West Cornwall, Coverack | Henry Elliott Fox | Watson Botanical Exchange Club Augustin Ley | 7/1910 | BIRM |
| Melittis melissophyllum | GB, VC1 West Cornwall, Coverack | Henry Elliott Fox | Watson Botanical Exchange Club Albert Bruce Jackson | 7/1910 | K |
| Melittis melissophyllum | GB, VC1 West Cornwall, Coverack | Henry Elliott Fox | Watson Botanical Exchange Club Augustin Ley | 7/1910 | BIRM |
| Matricaria discoidea | GB, VC1 West Cornwall, Falmouth | Spencer Henry Bickham | Watson Botanical Exchange Club Charles Edgar Salmon Spencer Henry Bickham | 20/9/1904 | ABS |
| Polypogon viridis | GB, VC1 West Cornwall, Falmouth | Frederick Hamilton Davey | Watson Botanical Exchange Club Augustin Ley Frederick Hamilton Davey | 8/8/1910 | BIRM |
| Carum carvi | GB, VC1 West Cornwall, Falmouth Docks | Frederick Hamilton Davey | Watson Botanical Exchange Club | 21/5/1904 | SLBI |
+ | 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 x cordifolia | GB, VC1 West Cornwall, Feock,Carnon Downs | Frederick Hamilton Davey | Watson Botanical Exchange Club Albert Bruce Jackson Frederick Hamilton Davey | 9/10/1907 | K |
| 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 |
| Euphrasia anglica x micrantha | GB, VC1 West Cornwall, Goonhavern | William Tresidder | Watson Botanical Exchange Club Augustin Ley A Bennett | 9/1909 | BIRM |
| Euphrasia scottica | GB, VC1 West Cornwall, Goonhavern | Francis Rilstone | Watson Botanical Exchange Club Harold Stuart Thompson | 4/9/1922 | BIRM |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Goonhavern | Chambre Corker Vigurs | Watson Botanical Exchange Club Joseph Edward Little Frederick Hamilton Davey | 9/1912 | CGE |
| Ranunculus baudotii | GB, VC1 West Cornwall, Grade | Job Edward Lousley | Watson Botanical Exchange Club Job Edward Lousley | 30/5/1929 | SLBI |
| Cytisus scoparius | GB, VC1 West Cornwall, Gue Graze | Job Edward Lousley | Watson Botanical Exchange Club | 1/6/1929 | SLBI |
| Juncus tenuis | GB, VC1 West Cornwall, Gulval | Harold Stuart Thompson | Watson Botanical Exchange Club Harold Stuart Thompson Job Edward Lousley | 5/8/1929 to 30/8/1929 | SLBI |
| Fumaria bastardii | GB, VC1 West Cornwall, Gunwalloe | Job Edward Lousley | Watson Botanical Exchange Club Job Edward Lousley | 28/5/1929 | SLBI |
| Eriophorum angustifolium | GB, VC1 West Cornwall, Gwennap | Frederick Hamilton Davey | Watson Botanical Exchange Club Charles Bailey Frederick Hamilton Davey | 18/5/1906 | MANCH |
+ | Mentha suaveolens x longifolia = M. x rotundifolia | GB, VC1 West Cornwall, Gwennap | Frederick Hamilton Davey | Watson Botanical Exchange Club Charles Bailey | 23/8/1911 | MANCH |
| Polygala serpyllifolia | GB, VC1 West Cornwall, Gwennap Head | Frederick Hamilton Davey | Watson Botanical Exchange Club Frederick Hamilton Davey William Robert Sherrin | 30/9/1909 | SLBI |
| Carex muricata | GB, VC1 West Cornwall, Helston | Edward Shearburn Marshall | Watson Botanical Exchange Club Edward Shearburn Marshall Eliza Standerwick Gregory William Charles Barton | 21/6/1917 | BM |
| Fumaria bastardii | GB, VC1 West Cornwall, Helston | Job Edward Lousley | Watson Botanical Exchange Club | 27/5/1929 | SLBI |