| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC17 Surrey, Hedge Court Pond | William Hadden Beeby | | 18/8/1884 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Doddington | Alfred Fryer | | 16/7/1888 | ABS |
| 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, Sutton | Alfred Fryer | | 4/5/1888 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Welches Dam | Alfred Fryer | | 25/8/1888 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Witcham | Alfred Fryer | | 27/8/1888 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Witcham Meadlands | Alfred Fryer | | 24/8/1888 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC69 Westmorland, Coniston | Charles Bailey | Charles Bailey | 22/9/1882 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC69 Westmorland, Coniston | Charles Bailey | | 22/9/1882 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC70 Cumberland, Derwent Water | Charles Bailey | Charles Bailey | 15/9/1882 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC70 Cumberland, Derwent Water | Charles Bailey | | 15/9/1882 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC80 Roxburghshire, Melrose | Robert Renton | | 8/1880 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, Kerry, Killorglin | Reginald Wiliam Scully | Reginald Wiliam Scully | 4/8/1890 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH30 Co. Cavan | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles Arthur Bennett | 6/7/1881 | ABS |
| 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 angustifolius | GB, VC69 Westmorland, Coniston Lake | Charles Bailey | Botanical Exchange Club of The British Isles | 22/9/1882 | BIRM |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC70 Cumberland, Derwent Water | Charles Bailey | Botanical Exchange Club of The British Isles Augustin Ley | 15/9/1882 | BIRM |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC80 Roxburghshire, Cauldshiels | Robert Renton | Robert Renton | 9/1879 | BIRM |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC80 Roxburghshire, Cauldshiels | Douglas Montague Heath | Douglas Montague Heath | 14/7/1938 | BIRM |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC80 Roxburghshire, Cauldshiels | Andrew Brotherston | Botanical Exchange Club of The British Isles Augustin Ley | 8/1878 | BIRM |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC80 Roxburghshire, Melrose | Douglas Montague Heath | Douglas Montague Heath | 14/7/1938 | BIRM |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC80 Roxburghshire, Melrose | Robert Renton | George Stephen West | 8/1880 | BIRM |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC85 Fifeshire, Kinghorn Loch | John Thomas Irvine Boswell-Syme | Augustin Ley | 1873 | BIRM |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC90 Angus, Rescobie Loch | George Claridge Druce | Augustin Ley | 8/1882 | BIRM |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC29 Cambridgeshire, Block Fen, Chatteris | Alfred Fryer | Augustin Ley | 25/7/1887 | BIRM |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC29 Cambridgeshire, Chatteris | Alfred Fryer | Charles Bailey | 4/7/1884 | BIRM |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC55 Leicestershire, Moira | Edgar Franklin Cooper | Augustin Ley | 18/8/1891 | BIRM |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC80 Roxburghshire, Cauldshiels Loch | Edward Shearburn Marshall | Harold Stuart Thompson | 12/7/1892 | BIRM |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC85 Fifeshire, Lochgelly | John Thomas Irvine Boswell-Syme | | 8/1868 | BON |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC28 West Norfolk, Kilverstone | George Taylor | The British Museum | 28/6/1947 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Benwick | Alfred Fryer | Alexander Somerville | 3/9/1892 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Block Fen, Chatteris | Alfred Fryer | Alexander Somerville | 29/7/1887 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Block Fen, Chatteris | Alfred Fryer | Alfred Fryer | 5/8/1887 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Block Fen, Chatteris | Alfred Fryer | Alfred Fryer | 18/7/1887 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Chatteris | Alfred Fryer | Alexander Somerville Reginald Wiliam Scully | 22/8/1890 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Chatteris, Block Fen | Alfred Fryer | Alfred Fryer | 10/7/1887 | E |
| 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, Ely | Henry Groves James Groves | Botanical Exchange Club of The British Isles Henry & James Groves | 2/6/1884 | E |