| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Botanical Exchange Club of The British Isles Charles Bailey | 17/7/1888 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Alfred Fryer Charles Bailey | 11/9/1891 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | The British Museum Alfred Fryer Charles Bailey | 13/8/1892 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Alfred Fryer Charles Bailey | 8/9/1892 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | | Charles Bailey | 2/4/1903 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer George Claridge Druce | Alfred Fryer Charles Bailey | 29/8/1909 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer George Claridge Druce | Alfred Fryer Charles Bailey | 29/8/1909 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer George Claridge Druce | Alfred Fryer Charles Bailey | 29/8/1909 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer George Claridge Druce | Alfred Fryer Charles Bailey | 29/8/1909 | 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 | Alfred Fryer | 29/8/1909 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer Charles Edward Moss Edward Walter Hunnybun | Alfred Fryer Charles Bailey | 3/9/1909 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Alfred Fryer Charles Bailey | 4/8/1888 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Charles Bailey | 27/8/1888 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Charles Bailey | 18/7/1890 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Charles Bailey | 22/7/1890 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Charles Bailey | 30/7/1890 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Alfred Fryer Charles Bailey | 22/8/1890 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Charles Bailey | 11/8/1891 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | | Alfred Fryer Charles Bailey | 15/8/1897 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Alfred Fryer Charles Bailey | 15/8/1897 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | The British Museum Alfred Fryer Charles Bailey | 22/8/1897 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Alfred Fryer Charles Bailey | 22/8/1897 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal, Witcham Meadlands Drove | Alfred Fryer | Charles Bailey | 30/6/1888 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Pondersbridge | Alfred Fryer | Alfred Fryer Charles Bailey | 16/8/1895 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Pondersbridge | Alfred Fryer | Alfred Fryer Charles Bailey | 5/9/1895 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Pondersbridge | Alfred Fryer | Charles Bailey | 11/9/1894 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Pondersbridge | Alfred Fryer | Alfred Fryer Charles Bailey | 1/8/1895 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Sutton | Alfred Fryer | Alfred Fryer Charles Bailey | 15/8/1886 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Sutton | Alfred Fryer | Charles Bailey | 11/9/1886 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Sutton | Alfred Fryer | Charles Bailey | 3/7/1888 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Sutton | Alfred Fryer | | 21/8/1888 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Sutton | | Alfred Fryer Charles Bailey | 4/5/1888 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Sutton | Alfred Fryer | Charles Bailey | 29/5/1888 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Sutton Broadpiece | Alfred Fryer | Charles Bailey | 3/7/1888 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Sutton Gault | Alfred Fryer | Botanical Exchange Club of The British Isles Charles Bailey | 10/8/1892 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Sutton Gault | Alfred Fryer | Botanical Exchange Club of The British Isles Charles Bailey | 13/9/1892 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Sutton Gault | Alfred Fryer | Alfred Fryer Charles Bailey | 13/9/1892 | MANCH |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Welches Dam | Alfred Fryer | Charles Bailey | 23/8/1886 | MANCH |