| Butomus umbellatus | GB, VC21 Middlesex, Harefield | | Charles Bailey Eyre Champion de Crespigny | 1883 | MANCH |
| Dentaria bulbifera | GB, VC21 Middlesex, Harefield | Eyre Champion de Crespigny | Charles Bailey | 5/1878 | BIRM |
| Dipsacus pilosus | GB, VC21 Middlesex, Harefield | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1883 | MANCH |
| Potamogeton alpinus | GB, VC21 Middlesex, Harefield | Eyre Champion de Crespigny | Charles Bailey | 6/1881 | MANCH |
| Potamogeton pusillus | GB, VC21 Middlesex, Harefield | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1883 | MANCH |
| Potamogeton trichoides | GB, VC21 Middlesex, Harefield | Eyre Champion de Crespigny | Charles Bailey Eyre de Crespigny | 1882 | MANCH |
| Anemone nemorosa | GB, VC21 Middlesex, Hampstead Heath | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1873 | MANCH |
+ | Carex divisa | GB, VC21 Middlesex, Hampstead Heath | Eyre Champion de Crespigny | Charles Bailey | 1878 | MANCH |
| Carex divisa | GB, VC21 Middlesex, Hampstead Heath | Eyre Champion de Crespigny | Eyre Champion de Crespigny | 1878 | BM |
| Eriophorum angustifolium | GB, VC17 Surrey, Reigate Heath GB, VC21 Middlesex, Hampstead Heath | | Charles Bailey Eyre Champion de Crespigny | | MANCH |
| Eriophorum angustifolium | GB, VC17 Surrey, Rudgate Heath GB, VC21 Middlesex, Hampstead Heath | Eyre Champion de Crespigny | Charles Bailey | 1875 | MANCH |
| Oxalis acetosella | GB, VC21 Middlesex, Hampstead Heath | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny Eyre de Crespigny | 1877 | MANCH |
| Rubus sprengelii | GB, VC21 Middlesex, Hampstead Heath | Eyre Champion de Crespigny | Botanical Exchange Club of The British Isles | 1882 | SLBI |
| Salix viminalis x caprea x cinerea = S. x calodendron | GB, VC21 Middlesex, Hampstead Heath | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1882 | MANCH |
| Serratula tinctoria | GB, VC21 Middlesex, Hampstead Heath | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1876 | MANCH |
| Serratula tinctoria | GB, VC21 Middlesex, Hampstead Heath | | Charles Bailey Eyre Champion de Crespigny | 1881 | MANCH |
| Serratula tinctoria | GB, VC21 Middlesex, Hampstead Heath | Eyre Champion de Crespigny | Charles Bailey | 1881 | MANCH |
| Ranunculus acris | GB, VC21 Middlesex, Hampstead | Eyre Champion de Crespigny | Charles Bailey | 7/9/1875 | MANCH |
| Ranunculus repens | GB, VC21 Middlesex, Hampstead | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1875 | MANCH |
| Stachys sylvatica x palustris = S. x ambigua | GB, VC21 Middlesex, Hampstead | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1879 | MANCH |
| Caltha palustris var. guerangerii | GB, VC21 Middlesex, Hammersmith | Eyre Champion de Crespigny | Charles Bailey | | MANCH |
| Salix viminalis x cinerea = S. x holosericea | GB, VC21 Middlesex, Hammersmith | Eyre Champion de Crespigny | Charles Bailey | 6/1882 | MANCH |
| Carex divisa | GB, VC21 Middlesex, Finchley | Eyre Champion de Crespigny | | 7/1878 | BM |
| Cirsium arvense | GB, VC21 Middlesex, Finchley | Eyre Champion de Crespigny | Botanical Exchange Club of The British Isles Augustin Ley | 7/1881 | BIRM |
+ | Baldellia ranunculoides | GB, VC21 Middlesex, Chiswick | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1887 | MANCH |
+ | Chenopodium glaucum | GB, VC21 Middlesex | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1882 | MANCH |
+ | Ranunculus arvensis | GB, VC21 Middlesex | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1871 | MANCH |
+ | Ranunculus arvensis | GB, VC21 Middlesex | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1871 | MANCH |
| Cicuta virosa | GB, VC20 Hertfordshire, Wormley | Eyre Champion de Crespigny | Botanical Exchange Club of The British Isles Augustin Ley | 1878 | BIRM |
| Rorippa nasturtium-aquaticum | GB, VC20 Hertfordshire, Ware | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 7/1881 | MANCH |
+ | Pulsatilla vulgaris | GB, VC20 Hertfordshire, Tring (Nw of),Aldbury | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1876 | MANCH |
+ | Pulsatilla vulgaris | GB, VC20 Hertfordshire, Tring (Nw of),Aldbury | Eyre Champion de Crespigny | Charles Bailey | 6/1881 | MANCH |
+ | Pulsatilla vulgaris | GB, VC20 Hertfordshire, Tring (Nw of),Aldbury | Eyre Champion de Crespigny | Charles Bailey | 1882 | MANCH |
| Pyrola minor | GB, VC20 Hertfordshire, Tring | F Hanbury | Manchester Museum Charles Bailey Eyre Champion de Crespigny F Hanbury | 16/4/1877 | MANCH |
+ | Tephroseris integrifolia subsp. maritima | GB, VC20 Hertfordshire, Tring | Eyre Champion de Crespigny | Charles Bailey | 7/1876 | MANCH |
+ | Tephroseris integrifolia subsp. maritima | GB, VC20 Hertfordshire, Tring | Eyre Champion de Crespigny | Botanical Exchange Club of The British Isles Charles Bailey | 6/1881 | MANCH |
+ | Myosurus minimus | GB, VC20 Hertfordshire, Saint Albans | | A E Gibbs Charles Bailey Eyre Champion de Crespigny | 5/1882 | MANCH |
+ | Onobrychis viciifolia | GB, VC20 Hertfordshire, Royston Heath | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny Eyre de Crespigny | 1881 | MANCH |
+ | Tephroseris integrifolia subsp. maritima | GB, VC20 Hertfordshire, Royston Downs | Eyre Champion de Crespigny | Charles Bailey Eyre de Crespigny | 1850 to 1895 | MANCH |
+ | Caucalis platycarpos | GB, VC20 Hertfordshire, Royston | Eyre Champion de Crespigny | Charles Bailey | 7/1881 | MANCH |