| Potamogeton natans x lucens = P. x fluitans | GB, VC9,VC11, Saint Leonards | George Taylor | The British Museum | 17/8/1946 | E |
| Potamogeton natans x lucens = P. x fluitans | GB, VC9 Dorset, Trickett's Cross | George Taylor | The British Museum | 17/8/1946 | E |
| Potamogeton natans x lucens = P. x fluitans | GB, VC17 Surrey, Wey & Arun Canal | William Hadden Beeby | Botanical Exchange Club of The British Isles | 19/8/1888 | ABS |
| Potamogeton natans x lucens = P. x fluitans | GB, VC17 Surrey, Wey Canal | William Hadden Beeby | Botanical Exchange Club of The British Isles | 5/8/1888 | ABS |
| Potamogeton natans x lucens = P. x fluitans | GB, VC13 West Sussex, Wey and Arun canal | William Hadden Beeby | | 5/8/1888 | ABS |
| Potamogeton natans x lucens = P. x fluitans | GB, VC17 Surrey, Wey and Arun Canal | William Hadden Beeby | Botanical Exchange Club of The British Isles | 19/8/1888 | ABS |
| Potamogeton natans x lucens = P. x fluitans | GB, VC13 West Sussex, Wey and Arun Canal near Billingshurst | William Hadden Beeby | William Hadden Beeby | 6/1880 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC17 Surrey, Wey and Arun Canal near Tickners Heath | William Hadden Beeby | | 19/8/1888 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC13 West Sussex, Loxwood | William Hadden Beeby | William Hadden Beeby | 5/8/1888 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC17 Surrey, Cranleigh | William Hadden Beeby | William Hadden Beeby | 5/8/1888 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC17 Surrey, Cranleigh | William Hadden Beeby | William Hadden Beeby | 19/8/1888 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC17 Surrey, Tickners Heath | William Hadden Beeby | William Hadden Beeby | 19/8/1888 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | Botanical Exchange Club of The British Isles | 15/7/1887 | ABS |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | | 17/7/1888 | ABS |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Warboys Wood | Alfred Fryer | | 30/7/1897 | ABS |
| Potamogeton natans x lucens = P. x fluitans | GB, VC29 Cambridgeshire, Chatteris Cultivated GB, VC31 Huntingdonshire, Ramsey | Alfred Fryer | | 17/7/1888 | ABS |
| 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 | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 30/7/1897 | BIRM |
| Potamogeton natans x lucens = P. x fluitans | GB, VC29 Cambridgeshire, Chatteris | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 25/9/1892 | BIRM |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | Augustin Ley | 29/7/1888 | BIRM |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 25/7/1888 | BIRM |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | Botanical Exchange Club of The British Isles Augustin Ley | 10/7/1888 | BIRM |
| Potamogeton natans x lucens = P. x fluitans | GB, VC29 Cambridgeshire, Chatteris | Alfred Fryer | Augustin Ley | 13/8/1891 | BIRM |
| Potamogeton natans x lucens = P. x fluitans | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Augustin Ley | 7/7/1890 | BIRM |
| Potamogeton natans x lucens = P. x fluitans | GB, VC29 Cambridgeshire, Chatteris | Alfred Fryer | Augustin Ley | 16/7/1890 | BIRM |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | William Hadden Beeby | 15/7/1887 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | | 8/6/1891 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | | 7/7/1890 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC29 Cambridgeshire, Horselode Fen | Alfred Fryer | | 25/9/1892 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC29 Cambridgeshire, Chatteris | Alfred Fryer | | 13/8/1891 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | William Hadden Beeby | 31/5/1888 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | | 13/7/1890 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | Cultivated | Alfred Fryer | William Hadden Beeby | 30/7/1888 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | | 7/7/1888 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | Botanical Exchange Club of The British Isles | 23/7/1888 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC29 Cambridgeshire, Chatteris | Alfred Fryer | | 25/9/1892 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | William Hadden Beeby | 11/7/1888 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | William Hadden Beeby | 7/7/1888 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC31 Huntingdonshire, Ramsey Cultivated | Alfred Fryer | | 11/7/1888 | SLBI |
| Potamogeton natans x lucens = P. x fluitans | GB, VC29 Cambridgeshire, Doddington | Alfred Fryer George Fryer | William Hadden Beeby | 8/9/1887 | SLBI |