| 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 |
| Campanula rapunculoides | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun | Spencer Henry Bickham | 26/8/1909 | BIRM |
| Crataegus monogyna var. lacinata | GB, VC31 Huntingdonshire, Huntingdon | Augustin Ley Edward Walter Hunnybun | Augustin Ley | 25/8/1908 | BIRM |
| Cuscuta europaea | GB, VC17,VC22, Old Windsor | Edward Walter Hunnybun | Charles Baylis Green | 29/7/1917 | SLBI |
| 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 mollugo subsp. erectum | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun | Watson Botanical Exchange Club Augustin Ley Spencer Henry Bickham | 26/8/1909 | BIRM |
| Galium mollugo subsp. erectum | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Augustin Ley Spencer Henry Bickham | 26/8/1909 | BIRM |
| Galium mollugo subsp. erectum | GB, VC31 Huntingdonshire, Woodwalton Fen | Augustin Ley Edward Walter Hunnybun | Augustin Ley | 28/8/1908 | BIRM |
| 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 |
| 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 |
+ | Luzula pallidula | GB, VC31 Huntingdonshire, Wood Walton | Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Spencer Henry Bickham | 13/7/1907 | MANCH |
| Luzula pallidula | GB, VC31 Huntingdonshire, Woodwalton Fen | Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Augustin Ley Spencer Henry Bickham | 13/6/1907 | BIRM |
| Mentha aquatica var. hirsuta | GB, VC31 Huntingdonshire, Buckden | Edward Walter Hunnybun | Chambre Corker Vigurs | 30/8/1906 | ABS |
| Mentha aquatica x spicata = M. x piperita var. citrata | Cultivated | Edward Walter Hunnybun | Spencer Henry Bickham | 1917 | K |
| Mentha aquatica x spicata = M. x piperita | Cultivated | James Walter White | Druce Herbarium, Oxford Edward Walter Hunnybun J Fraser | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC31 Huntingdonshire, Huntingdon Cultivated | Edward Walter Hunnybun | Spencer Henry Bickham | 22/9/1908 | 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 | 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 |
+ | 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 |
| Mentha x piperita | GB, VC1 West Cornwall, Newquay | Chambre Corker Vigurs | Edward Walter Hunnybun | 1904 | K |
| Ononis reclinata | GB, VC10 Isle of Wight, Ventnor GB, VC3 South Devon, Berry Head | Edward Walter Hunnybun | | 25/7/1917 | SLBI |
| Phleum phleoides | GB, VC29 Cambridgeshire, Hildersham | Edward Walter Hunnybun | Chambre Corker Vigurs | 30/6/1904 | ABS |
| Potamogeton coloratus | GB, VC31 Huntingdonshire, Ramsey Saint Mary's | Edward Walter Hunnybun | Botanical Exchange Club of The British Isles Augustin Ley Spencer Henry Bickham | 20/7/1908 | BIRM |
+ | 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, VC29 Cambridgeshire, Witcham | Edward Walter Hunnybun | Watson Botanical Exchange Club Job Edward Lousley | 9/9/1909 | SLBI |
| 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 |