+ | Viola canina subsp. montana | GB, VC31 Huntingdonshire, Wood Walton | Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Eliza Standerwick Gregory | 29/5/1907 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Witcham | Edward Walter Hunnybun | Watson Botanical Exchange Club Job Edward Lousley | 9/9/1909 | SLBI |
| Galium verum x mollugo = G. x pomeranicum | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Charles Bailey Spencer Henry Bickham | 26/8/1909 | MANCH |
+ | Potamogeton compressus | GB, VC29 Cambridgeshire, Roswell Pits, Ely | Edward Walter Hunnybun | Watson Botanical Exchange Club Arthur Bennett Charles Bailey Spencer Henry Bickham | 27/7/1909 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Morris Alfred Fryer Edward Walter Hunnybun | Alfred Fryer Charles Bailey | 3/9/1909 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer Edward Walter Hunnybun | Alfred Fryer Charles Bailey | 3/9/1909 | MANCH |
| Potamogeton gramineus | GB, VC31 Huntingdonshire, Ramsey | Alfred Fryer Edward Walter Hunnybun | Charles Bailey | 7/8/1907 | MANCH |
| Potamogeton gramineus | GB, VC31 Huntingdonshire, Ramsey | Alfred Fryer Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Charles Bailey Spencer Henry Bickham | 7/8/1907 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Clarke's Farm | Alfred Fryer Edward Walter Hunnybun | Alfred Fryer Charles Bailey | 30/9/1909 | MANCH |
| Potamogeton gramineus | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun | Watson Botanical Exchange Club Charles Bailey Spencer Henry Bickham | 27/8/1909 | MANCH |
| Potamogeton lucens | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Charles Bailey Spencer Henry Bickham | 5/8/1909 | MANCH |
+ | Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Warboys | Alfred Fryer Edward Walter Hunnybun | Charles Bailey Spencer Henry Bickham | 15/8/1906 | MANCH |
| Viola canina subsp. canina x canina subsp. montana | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Charles Bailey Eliza Standerwick Gregory | 29/5/1907 | MANCH |
+ | Viola persicifolia | GB, VC31 Huntingdonshire, Wood Walton | Edward Walter Hunnybun | Charles Bailey Spencer Henry Bickham | 13/6/1907 | MANCH |
| Campanula rapunculoides | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun | Spencer Henry Bickham | 26/8/1909 | BIRM |
| Galium mollugo subsp. erectum | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun | Watson Botanical Exchange Club Harold Stuart Thompson Spencer Henry Bickham | 26/8/1909 | BIRM |
| Galium x pomeranicum | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Spencer Henry Bickham William Robert Sherrin | 26/8/1909 | SLBI |
+ | Luzula pallidula | GB, VC31 Huntingdonshire, Wood Walton | Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Spencer Henry Bickham | 13/7/1907 | MANCH |
| Mentha aquatica x spicata = M. x piperita | GB, VC31 Huntingdonshire, Huntingdon Cultivated | Edward Walter Hunnybun | Spencer Henry Bickham | 22/9/1908 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | Cultivated | Edward Walter Hunnybun | Spencer Henry Bickham | 1917 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC10 Isle of Wight, Freshwater | Edward Walter Hunnybun | Spencer Henry Bickham | 25/9/1906 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC10 Isle of Wight, Freshwater | Edward Walter Hunnybun | Spencer Henry Bickham | 25/9/1906 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC10 Isle of Wight, Freshwater | Edward Walter Hunnybun | Spencer Henry Bickham | 18/9/1906 | CGE |
| Potamogeton gramineus | GB, VC31 Huntingdonshire, Pond's Bridge | Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Spencer Henry Bickham | 3/8/1908 | MANCH |
| Potamogeton trichoides | GB, VC29 Cambridgeshire, Hammond's Eau | Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Spencer Henry Bickham | 9/9/1909 | MANCH |
| Potamogeton trichoides | GB, VC29 Cambridgeshire, Mepal, Hammonds Eau | Edward Walter Hunnybun | Arthur Bennett Spencer Henry Bickham | 9/9/1909 | MANCH |
| Solanum nigrum var. miniatum | GB, VC10 Isle of Wight, Ventnor | Edward Walter Hunnybun | Watson Botanical Exchange Club Harold Stuart Thompson Spencer Henry Bickham | 8/9/1917 | BIRM |
| Ulmus minor subsp. angustifolia | GB, VC31 Huntingdonshire, Huntingdon | Edward Walter Hunnybun | Watson Botanical Exchange Club Spencer Henry Bickham William Robert Sherrin | 3/9/1908 | SLBI |
| Mentha aquatica x spicata = M. x piperita | Cultivated | James Walter White | Druce Herbarium, Oxford Edward Walter Hunnybun J Fraser | | OXF |
| Limonium binervosum | GB, VC28 West Norfolk, Hunstanton | Alfred Fryer Edward Walter Hunnybun | Allan Octavian Hume Charles Edgar Salmon | 8/1901 | SLBI |
| Potamogeton gramineus | GB, VC31 Huntingdonshire, Ramsey | Alfred Fryer Edward Walter Hunnybun | Allan Octavian Hume | 7/8/1907 | SLBI |
| Potamogeton gramineus | GB, VC31 Huntingdonshire, Ramsey | Alfred Fryer Edward Walter Hunnybun | Allan Octavian Hume | 7/8/1907 | SLBI |
| Potamogeton gramineus | GB, VC31 Huntingdonshire, Ramsey | Alfred Fryer Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Francis Chalmers Crawford Spencer Henry Bickham | 7/8/1907 | E |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC31 Huntingdonshire, Ramsey | Alfred Fryer Edward Walter Hunnybun | Allan Octavian Hume | 7/8/1907 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Warboys Wood | Alfred Fryer Edward Walter Hunnybun | Watson Botanical Exchange Club Spencer Henry Bickham | 15/8/1906 | E |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Warboys Wood | Alfred Fryer Edward Walter Hunnybun | Alexander Somerville Spencer Henry Bickham | 15/8/1906 | E |
| Agrimonia eupatoria | GB, VC10 Isle of Wight, Saint Lawrence | Gardner Charles Baylis Green Edward Walter Hunnybun | | 25/7/1917 | SLBI |
| Agrimonia eupatoria | GB, VC10 Isle of Wight, Ventnor | Gardner Charles Baylis Green Edward Walter Hunnybun | | 25/7/1917 | SLBI |
| Anthyllis vulneraria | GB, VC10 Isle of Wight, Saint Lawrence | Gardner Charles Baylis Green Edward Walter Hunnybun | | 25/7/1917 | SLBI |
| Cuscuta europaea | GB, VC17,VC22, Old Windsor | Edward Walter Hunnybun | Charles Baylis Green | 29/7/1917 | SLBI |