| Paeonia mascula | GB, VC36 Herefordshire, Ledbury Cultivated | Spencer Henry Bickham | Watson Botanical Exchange Club Harold Stuart Thompson Spencer Henry Bickham | 28/5/1919 | BIRM |
| Mentha aquatica x spicata = M. x piperita | GB, VC20 Hertfordshire, Northaw GB, VC36 Herefordshire, Ledbury Cultivated | Spencer Henry Bickham | George Claridge Druce | 20/10/1918 | LIV |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw Cultivated | Spencer Henry Bickham | Druce Herbarium, Oxford Henry Elliott Fox Spencer Henry Bickham | 22/9/1918 | OXF |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw | Spencer Henry Bickham | Spencer Henry Bickham | 22/9/1918 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC20 Hertfordshire, Northaw Cultivated | Spencer Henry Bickham | Watson Botanical Exchange Club Spencer Henry Bickham | 22/9/1918 | SLBI |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw Cultivated | Spencer Henry Bickham | Watson Botanical Exchange Club Albert Bruce Jackson | 22/9/1918 | K |
| Cucubalus baccifer | GB, VC28 West Norfolk, Merton | Frederick Robinson | Spencer Henry Bickham | 20/9/1918 | SLBI |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw | Spencer Henry Bickham | | 20/9/1918 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw | Spencer Henry Bickham | Spencer Henry Bickham | 20/9/1918 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC36 Herefordshire, Ledbury Cultivated | Spencer Henry Bickham | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford Spencer Henry Bickham | 20/9/1918 | OXF |
| Aster linosyris | GB, VC49 Caernarvonshire, Great Orme's Head | Spencer Henry Bickham | Richard Barker Ullman Botanical Exchange Club of The British Isles Patrick Martin Hall | 8/1918 | SLBI |
| 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 |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC40 Shropshire, Meole Brace | James Cosmo Melvill | Botanical Exchange Club of The British Isles Spencer Henry Bickham | 24/8/1917 | CGE |
| Rubus lindebergii | GB, VC70 Cumberland, Watermillock | Spencer Henry Bickham | Watson Botanical Exchange Club | 13/8/1917 | SLBI |
| Brachypodium sylvaticum | GB, VC69 Westmorland, Ullswater | Spencer Henry Bickham | Watson Botanical Exchange Club Harold Stuart Thompson Spencer Henry Bickham | 11/8/1917 | BIRM |
| Ranunculus reptans | GB, VC70 Cumberland, Ullswater | Spencer Henry Bickham | Watson Botanical Exchange Club Spencer Henry Bickham | 6/8/1917 | BIRM |
| Ranunculus reptans | GB, VC70 Cumberland, Ullswater | Spencer Henry Bickham | London Natural History Society Watson Botanical Exchange Club Edmund Browne Bishop | 6/8/1917 | SLBI |
| Rubus lacustris | GB, VC69, VC70, Glencoyne Bay, Ullswater | Spencer Henry Bickham | Botanical Exchange Club of The British Isles Charles Edward Britton Spencer Henry Bickham | 6/8/1917 | SLBI |
| Cotoneaster cambricus | GB, VC49 Caernarvonshire, Great Orme's Head GB, VC5 South Somerset, West Monkton Cultivated | Spencer Henry Bickham | Edward Shearburn Marshall Harold Stuart Thompson | 11/5/1917 9/7/1917 | BIRM |
| Mentha aquatica x spicata = M. x piperita var. citrata | Cultivated | Edward Walter Hunnybun | Spencer Henry Bickham | 1917 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Newton Saint Loe | Ida Mary Roper | Watson Botanical Exchange Club Spencer Henry Bickham | 13/9/1916 | CGE |
| Barbarea vulgaris var. arcuata | GB, VC37 Worcestershire, Upton on Severn | Spencer Henry Bickham | Watson Botanical Exchange Club Harold Stuart Thompson Spencer Henry Bickham | 21/7/1916 | BIRM |
| Senecio paludosus | GB, VC29 Cambridgeshire, Wicken Fen | Spencer Henry Bickham | Watson Botanical Exchange Club Spencer Henry Bickham William Robert Sherrin | 21/7/1916 | SLBI |
| Senecio paludosus | GB, VC29 Cambridgeshire, Wicken Fen Cultivated GB, VC36 Herefordshire, Ledbury Cultivated | Spencer Henry Bickham | Isaac A Helsby Harold Stuart Thompson | 21/7/1916 | SLBI |
| Euphorbia serrulata | GB, VC36 Herefordshire, Ledbury | Spencer Henry Bickham | Watson Botanical Exchange Club Harold Stuart Thompson Spencer Henry Bickham | 20/7/1916 | BIRM |
| Euphorbia serrulata | GB, VC36 Herefordshire, Ledbury | Spencer Henry Bickham | Watson Botanical Exchange Club Spencer Henry Bickham William Robert Sherrin | 20/7/1916 | SLBI |
| Anchusa officinalis | GB, VC36 Herefordshire, Ledbury | Spencer Henry Bickham | Watson Botanical Exchange Club Harold Stuart Thompson Spencer Henry Bickham | 19/6/1916 | BIRM |
| Sisymbrium | GB, VC36 Herefordshire, Ledbury | Spencer Henry Bickham | Watson Botanical Exchange Club Spencer Henry Bickham William Robert Sherrin | 19/6/1916 | SLBI |
| Sisymbrium polyceratium | GB, VC34 West Gloucestershire, Sedbury | Spencer Henry Bickham | Watson Botanical Exchange Club Harold Stuart Thompson Spencer Henry Bickham | 9/6/1916 | BIRM |
| Arabis hirsuta | GB, VC14 East Sussex, Plumpton GB, VC36 Herefordshire, Ledbury Cultivated | Spencer Henry Bickham | Watson Botanical Exchange Club Harold Stuart Thompson Spencer Henry Bickham | 1913 27/5/1916 | BIRM |
| Arabis hirsuta | GB, VC14 East Sussex, Plumpton GB, VC36 Herefordshire, Ledbury Cultivated | Charles Edgar Salmon Spencer Henry Bickham | Watson Botanical Exchange Club Spencer Henry Bickham William Robert Sherrin | 1913 27/5/1916 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC36 Herefordshire, Ledbury | Spencer Henry Bickham | Spencer Henry Bickham | 28/9/1915 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw | Spencer Henry Bickham | Spencer Henry Bickham | 16/9/1915 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC20 Hertfordshire, Northaw Cultivated | Spencer Henry Bickham | Watson Botanical Exchange Club Spencer Henry Bickham William Robert Sherrin | 16/9/1915 | SLBI |
| Senecio paludosus | GB, VC29 Cambridgeshire, Wicken Fen GB, VC36 Herefordshire, Ledbury Cultivated | Spencer Henry Bickham | Watson Botanical Exchange Club Harold Stuart Thompson Spencer Henry Bickham | 14/9/1915 | BIRM |
| Senecio paludosus | GB, VC29 Cambridgeshire, Wicken Fen | Spencer Henry Bickham | Watson Botanical Exchange Club Spencer Henry Bickham William Robert Sherrin | 14/9/1915 | SLBI |
| Senecio paludosus | GB, VC29 Cambridgeshire, Wicken Fen GB, VC36 Herefordshire, Ledbury Cultivated | Spencer Henry Bickham | Watson Botanical Exchange Club Douglas Montague Heath Frederick Long Frederick Robinson | 14/9/1915 | BIRM |
| Ammi majus | GB, VC36 Herefordshire, Ledbury | Spencer Henry Bickham | Watson Botanical Exchange Club Harold Stuart Thompson Spencer Henry Bickham | 12/9/1915 | BIRM |
| Ammi majus | GB, VC36 Herefordshire, Ledbury | Spencer Henry Bickham | Watson Botanical Exchange Club William Robert Sherrin | 12/9/1915 to 13/9/1915 | SLBI |
| Ceterach officinarum | GB, VC34 West Gloucestershire, Sedbury | Spencer Henry Bickham | Watson Botanical Exchange Club Harold Stuart Thompson Spencer Henry Bickham | 10/9/1915 | BIRM |