| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Doddington | Alfred Fryer | William Hadden Beeby | 9/1885 | SLBI |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Doddington | Alfred Fryer | Alfred Fryer | 22/8/1886 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Doddington | Alfred Fryer | | 16/7/1888 | ABS |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC29 Cambridgeshire, Doddington | Alfred Fryer | Alfred Fryer | 19/7/1887 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Ely | Henry Groves James Groves | Botanical Exchange Club of The British Isles Henry & James Groves | 2/6/1884 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Charles Bailey | 1/7/1883 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Alfred Fryer Charles Bailey | 20/8/1883 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Charles Bailey | 10/7/1887 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Alfred Fryer Charles Bailey | 31/5/1888 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Alfred Fryer Charles Bailey | 7/6/1888 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Charles Bailey | 4/8/1888 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Charles Bailey | 6/8/1888 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Charles Bailey Eyre Champion de Crespigny | 25/8/1888 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Charles Bailey | 18/7/1890 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Charles Bailey | 18/7/1890 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Alfred Fryer Charles Bailey | 20/8/1892 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey | Alfred Fryer | Alfred Fryer Charles Bailey | 22/8/1897 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Fortrey's Hall | Alfred Fryer | Alexander Somerville Alfred Fryer | 27/7/1890 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Haddenham | | | 12/9/1884 | SLBI |
| 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 lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | William Hadden Beeby | 2/8/1887 | SLBI |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | William Hadden Beeby | 5/8/1887 | SLBI |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | | 10/7/1890 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Alfred Fryer Arthur Bennett | 22/7/1890 | SLBI |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | | 22/7/1890 | SLBI |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC29 Cambridgeshire, Mepal, Hammonds Eau | Edward Charles Wallace | | | E |
| 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 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 |