| Ononis reclinata | GB, VC113 Channel Islands, Guernsey,L'Ancresse | Margaret Dawber | Harold Stuart Thompson | 6/1886 | BIRM |
| Crassula tillaea | GB, VC113 Channel Islands, Guernsey,L'Ancresse Common | Margaret Dawber | William Hadden Beeby | 27/5/1890 | SLBI |
| Senecio vulgaris | GB, VC113 Channel Islands, Guernsey,Le Ree Bay | Margaret Dawber | William Hadden Beeby | 2/7/1894 | SLBI |
| Malus domestica | GB, VC113 Channel Islands, Guernsey,Moulin Huet Bay | Margaret Dawber | Harold Stuart Thompson | 25/5/1888 | BIRM |
+ | Ononis reclinata | GB, VC113 Channel Islands, Guernsey,Moulin Huet Bay | Margaret Dawber | | 28/6/1889 | MANCH |
| Orobanche minor var. maritima | GB, VC113 Channel Islands, Guernsey,Moulin Huet Bay | Margaret Dawber | Harold Stuart Thompson | 20/6/1881 | BIRM |
| Scrophularia scorodonia | GB, VC113 Channel Islands, Guernsey,Moulin Huet Bay | Margaret Dawber | William Hadden Beeby | 1/7/1889 | SLBI |
| Arum italicum | GB, VC113 Channel Islands, Guernsey,Paradis | Margaret Dawber | William Hunt Painter | 30/5/1894 | SHYB |
+ | Ophioglossum lusitanicum | GB, VC113 Channel Islands, Guernsey,Petit Bot Bay | Margaret Dawber | George Alfred Holt James Henry Augustus Steuart | 3/2/1893 | MANCH |
| Cynosurus echinatus | GB, VC113 Channel Islands, Guernsey,Pleimont | Margaret Dawber | | 8/1886 | ABS |
| Cynosurus echinatus | GB, VC113 Channel Islands, Guernsey,Pleimont | Margaret Dawber | Harold Stuart Thompson | 6/1886 | BIRM |
| Cytisus scoparius | GB, VC113 Channel Islands, Guernsey,Pleimont | Margaret Dawber | | 4/6/1890 | SLBI |
+ | Cytisus scoparius subsp. maritimus | GB, VC113 Channel Islands, Guernsey,Pleimont | Margaret Dawber | Charles Bailey | 24/6/1894 | MANCH |
| Orobanche minor var. maritima | GB, VC113 Channel Islands, Guernsey,Pleimont | Margaret Dawber | | 9/6/1890 | SLBI |
| Valerianella carinata | GB, VC113 Channel Islands, Guernsey,Saint Owen's Bay | Margaret Dawber | George Goode Harold Stuart Thompson | 6/1892 | BIRM |
| Erigeron karvinskianus | GB, VC113 Channel Islands, Guernsey,Saint Peter Port | Margaret Dawber | | 7/1894 | ABS |
| Papaver somniferum | GB, VC113 Channel Islands, Herm | Margaret Dawber | | 26/6/1894 | SHYB |
| Centaurea aspera | GB, VC113 Channel Islands, Jersey | Margaret Dawber | | 1898 | BIRM |
| Coincya monensis subsp. cheiranthos | GB, VC113 Channel Islands, Jersey | Margaret Dawber | | 3/8/1894 | SHYB |
| Filago germanica | GB, VC113 Channel Islands, Jersey | Margaret Dawber | | 5/7/1898 | BIRM |
| Hornungia petraea | GB, VC113 Channel Islands, Jersey | Margaret Dawber | Langley Kitching | 1897 | BIRM |
| Hypericum linariifolium | GB, VC113 Channel Islands, Jersey | Margaret Dawber | Harold Stuart Thompson | 1888 | BIRM |
| Hypericum linariifolium | GB, VC113 Channel Islands, Jersey, Saint Catherine's Bay | Margaret Dawber | William Hunt Painter | 24/8/1888 | ABS |
| Hirschfeldia incana | GB, VC113 Channel Islands, Jersey, Saint Ouen's | Margaret Dawber | Harold Stuart Thompson | 13/7/1888 | BIRM |
| Scabiosa maritima | GB, VC113 Channel Islands, Jersey, Saint Ouen's | Margaret Dawber | William Hunt Painter | 25/7/1894 | SHYB |
+ | Lythrum hyssopifolia | GB, VC113 Channel Islands, Jersey, Saint Ouen's Bay | Margaret Dawber | Elizabeth Anne Lomax | 31/7/1894 | MANCH |
+ | Lythrum hyssopifolia | GB, VC113 Channel Islands, Jersey,Les Marais | Margaret Dawber | Charles Bailey Henry Elliott Fox | 14/7/1888 | MANCH |
| Briza maxima | GB, VC113 Channel Islands, Kings Mills, Guernsey | Margaret Dawber | Harold Stuart Thompson | 2/5/1893 | BIRM |
| Callitriche truncata | GB, VC113 Channel Islands, Kings Mills, Guernsey | Margaret Dawber | | 8/1886 | SLBI |
| Cicendia filiformis | GB, VC113 Channel Islands, L'Ancresse Common | Margaret Dawber | Harold Stuart Thompson | 6/1886 | BIRM |
| Ophioglossum azoricum | GB, VC113 Channel Islands, L'Ancresse Common | Margaret Dawber | Harold Stuart Thompson | 28/5/1888 | BIRM |
| Viola nana | GB, VC113 Channel Islands, L'Ancresse Common | Margaret Dawber | Langley Kitching | 1/5/1894 | BIRM |
| Atriplex laciniata | GB, VC113 Channel Islands, L'Eree, Guernsey | Margaret Dawber | Arthur Bennett | 2/7/1889 | SLBI |
| Senecio vulgaris | GB, VC113 Channel Islands, L'Eree, Guernsey | Margaret Dawber | William Hunt Painter | 6/1886 | ABS |
| Petrorhagia prolifera | GB, VC113 Channel Islands, Le Quennevais, Jersey | Margaret Dawber | Henry Elliott Fox | 7/1888 | SHYB |
| Myosotis discolor | GB, VC113 Channel Islands, Pearl Cliffs, Guernsey | Margaret Dawber | William Hunt Painter | 30/5/1894 | ABS |
| Anisantha madritensis | GB, VC113 Channel Islands, Portelet Bay, Jersey | Margaret Dawber | | 25/6/1888 | BIRM |
| Anisantha madritensis | GB, VC113 Channel Islands, Portelet Bay, Jersey | Margaret Dawber | Augustin Ley James Henry Augustus Steuart Botanical Exchange Club of The British Isles | 25/6/1888 | BIRM |
| Allium sphaerocephalon | GB, VC113 Channel Islands, Saint Aubin's | Margaret Dawber | Harold Stuart Thompson | 13/7/1888 | BIRM |
| Mibora minima | GB, VC113 Channel Islands, Saint Martin's Cliffs | Margaret Dawber | William Hunt Painter | 1886 | SHYB |