| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | Botanical Exchange Club of The British Isles Arthur Bennett | 17/7/1888 | ABS |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Warboys Wood | Alfred Fryer | | 30/7/1897 | ABS |
| Potamogeton nodosus | GB, VC22 Berkshire, Twyford | George Claridge Druce | Botanical Exchange Club of The British Isles Oxford University Herbarium Alfred Fryer | 8/1898 | ABS |
| Potamogeton pectinatus | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Botanical Exchange Club of The British Isles | 12/8/1887 | ABS |
| Potamogeton pectinatus | GB, VC29 Cambridgeshire, Fortrey's Hall | Alfred Fryer | Botanical Exchange Club of The British Isles | 22/8/1887 | ABS |
| Potamogeton pectinatus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Botanical Exchange Club of The British Isles | 15/7/1887 | ABS |
| Potamogeton praelongus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | | 28/6/1888 | ABS |
| Potamogeton praelongus | GB, VC31 Huntingdonshire, Saint Ives Thicket | Alfred Fryer | Botanical Exchange Club of The British Isles | 28/8/1884 | ABS |
| Selinum carvifolia | GB, VC29 Cambridgeshire, Chippenham Moor | Alfred Fryer | William Hunt Painter | 5/9/1884 | ABS |
| Viola canina x persicifolia = V. x ritschliana | GB, VC29 Cambridgeshire, Chatteris | Alfred Fryer | Botanical Exchange Club of The British Isles William Hunt Painter | 16/6/1885 | ABS |
| Aster novi-belgii | GB, VC29 Cambridgeshire, Sutton | Alfred Fryer | Botanical Exchange Club of The British Isles Alfred Fryer Augustin Ley | 11/10/1887 | BIRM |
| Carex elata | GB, VC29 Cambridgeshire, Wimblington | Alfred Fryer | Arthur Bennett | 12/6/1884 | BIRM |
| Ceratophyllum demersum | GB, VC31 Huntingdonshire, Bluntisham Stanch | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 24/8/1887 | BIRM |
| Eleogiton fluitans | GB, VC31 Huntingdonshire, Farcet | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 4/9/1888 | BIRM |
| Fagopyrum tataricum | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 23/9/1885 | BIRM |
| Galium saxatile | GB, VC31 Huntingdonshire, Holme Fen | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 3/7/1885 15/9/1886 | BIRM |
| Potamogeton coloratus | GB, VC29 Cambridgeshire, Sutton | Alfred Fryer | Augustin Ley | 7/5/1888 | BIRM |
| Potamogeton coloratus | GB, VC29 Cambridgeshire, Welches Dam | Alfred Fryer | Augustin Ley | 28/1/1888 | BIRM |
| Potamogeton coloratus | GB, VC31 Huntingdonshire, Ramsey | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 25/8/1886 | BIRM |
| Potamogeton crispus | GB, VC29 Cambridgeshire, Sutton Gault | Alfred Fryer | Augustin Ley | 8/2/1888 | BIRM |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Grunty Fen | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 14/10/1889 | BIRM |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Augustin Ley | 31/7/1888 | BIRM |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Sutton Gault | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 13/9/1892 | BIRM |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Welches Dam | Alfred Fryer | Augustin Ley | 23/5/1888 | BIRM |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Witcham | Alfred Fryer | Augustin Ley | 31/5/1888 | BIRM |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Witcham | Alfred Fryer | Augustin Ley | 17/7/1888 | BIRM |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Witcham Meadlands | Alfred Fryer | Augustin Ley Botanical Exchange Club of The British Isles | 23/6/1888 | BIRM |
| Potamogeton gramineus | GB, VC31 Huntingdonshire, Pidley Fen | Alfred Fryer | Augustin Ley | 11/10/1891 | BIRM |
| Potamogeton gramineus | GB, VC31 Huntingdonshire, Pidley Fen | Alfred Fryer | Augustin Ley | 4/6/1888 | BIRM |
| Potamogeton gramineus | GB, VC31 Huntingdonshire, Ramsey | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 31/5/1887 | BIRM |
| Potamogeton gramineus | GB, VC31 Huntingdonshire, Stocking Fen | Alfred Fryer | Augustin Ley | 19/6/1888 | BIRM |
| Potamogeton gramineus | GB, VC31 Huntingdonshire, Stocking Fen | Alfred Fryer | Augustin Ley | 19/6/1888 | BIRM |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC29 Cambridgeshire, Blackbush Drain, Pondersbridge, Wittlesey | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 15/9/1894 | BIRM |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC29 Cambridgeshire, Whittlesea | Alfred Fryer | Harold Stuart Thompson | 15/9/1894 | BIRM |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC29 Cambridgeshire, Whittlesea,Blackbush Drain | Alfred Fryer | Alfred Fryer Charles Bailey | 22/6/1895 | BIRM |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC29 Cambridgeshire, Whittlesea,Blackbush Drain | Alfred Fryer | Alfred Fryer Charles Bailey | 22/6/1895 | BIRM |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Block Fen, Chatteris | Alfred Fryer | Augustin Ley | 25/6/1887 | BIRM |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Block Fen, Chatteris | Alfred Fryer | Augustin Ley | 25/7/1887 | BIRM |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Welches Dam | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 6/8/1888 | BIRM |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC29 Cambridgeshire, Block Fen, Chatteris | Alfred Fryer | Augustin Ley | 25/7/1887 | BIRM |