| 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 |
| 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 |
| Galium x pomeranicum | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun | Edward Shearburn Marshall Edward Shearburn Marshall | 2/8/1909 | SLBI |
| Inula salicina | IE, VCH15 South-east Galway, Lough Derg | Edward Walter Hunnybun | Charles Baylis Green | 25/7/1917 | SLBI |
| Limonium binervosum | GB, VC28 West Norfolk, Hunstanton | Alfred Fryer Edward Walter Hunnybun | Allan Octavian Hume Charles Edgar Salmon | 8/1901 | SLBI |
| Luzula multiflora var. pallescens | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun James Groves | Allan Octavian Hume Henry & James Groves | 26/6/1908 | SLBI |
| Luzula multiflora var. pallescens | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun James Groves | Allan Octavian Hume | 26/6/1908 | SLBI |
| Ononis reclinata | GB, VC10 Isle of Wight, Ventnor GB, VC3 South Devon, Berry Head | Edward Walter Hunnybun | | 25/7/1917 | SLBI |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Witcham | Edward Walter Hunnybun | Watson Botanical Exchange Club Job Edward Lousley | 9/9/1909 | 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 x perfoliatus = P. x nitens | GB, VC31 Huntingdonshire, Ramsey | Alfred Fryer Edward Walter Hunnybun | Allan Octavian Hume | 7/8/1907 | SLBI |
| Solanum nigrum var. miniatum | GB, VC113 Channel Islands, Jersey | | Charles Baylis Green Edward Walter Hunnybun | 30/7/1917 | SLBI |
| Taraxacum sect. Spectabilia | GB, VC17 Surrey, Thames Ditton Cultivated | Edward Walter Hunnybun | Edward Walter Hunnybun | 21/6/1908 | SLBI |
| Thymus serpyllum | GB, VC29 Cambridgeshire, Gog Magog Hills | Edward Walter Hunnybun | Allan Octavian Hume Edward Shearburn Marshall | 19/6/1905 | SLBI |
| 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 |
| 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 |
+ | 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 arvensis x aquatica = M. x verticillata | GB, VC10 Isle of Wight, Freshwater,Sheepwash Green | Edward Walter Hunnybun | Watson Botanical Exchange Club Charles Bailey | 26/9/1906 | 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, Clarke's Farm | Alfred Fryer Edward Walter Hunnybun | Alfred Fryer Charles Bailey | 30/9/1909 | 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, VC29 Cambridgeshire, Mepal | Alfred Fryer Charles Edward Moss Edward Walter Hunnybun | Alfred Fryer Charles Bailey | 3/9/1909 | MANCH |
| 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 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, 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 |
| 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 |
+ | 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 |
| 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 |
| Mentha aquatica x spicata = M. x piperita var. citrata | Cultivated | Edward Walter Hunnybun | Spencer Henry Bickham | 1917 | K |