| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC64 Mid-west Yorkshire, Harewood | George Taylor | The British Museum | 2/8/1940 | MANCH |
| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC64 Mid-west Yorkshire, Leathley | George Taylor | British Museum (Natural History) | 17/8/1940 | MANCH |
| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC64 Mid-west Yorkshire, Newby | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 24/7/1943 | MANCH |
+ | Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC64 Mid-west Yorkshire, Ripon (near),River Ure | H H Slater | Charles Bailey H H Slater | 9/1881 | MANCH |
| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC64 Mid-west Yorkshire, Weeton | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 3/5/1943 | MANCH |
| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC64 Mid-west Yorkshire, Weston | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 3/8/1943 | MANCH |
| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC64 Mid-west Yorkshire, Weston | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles | 3/8/1943 | MANCH |
| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC65 North-west Yorkshire, Langthorpe | George Taylor | The British Museum | 4/8/1944 | MANCH |
| Potamogeton filiformis x pectinatus = P. x suecicus | GB, VC65 North-west Yorkshire, West Tanfield | George Taylor | The British Museum | 29/8/1940 | MANCH |
| Potamogeton pectinatus | | J Makin | Tyldesley Museum Natural History Society | | MANCH |
| Potamogeton pectinatus | GB, VC1 West Cornwall, Marazion | William Curnow | Charles Bailey | 6/1875 | MANCH |
| Potamogeton pectinatus | GB, VC1 West Cornwall, Marazion Marsh | William Curnow | Charles Bailey John Harbord Lewis | 10/7/1878 | MANCH |
| Potamogeton pectinatus | GB, VC1 West Cornwall, Penzance | Elizabeth Anne Lomax | Botanical Exchange Club Charles Bailey | 8/1875 | MANCH |
| Potamogeton pectinatus | GB, VC1 West Cornwall, Penzance | Elizabeth Anne Lomax | | 8/1875 | MANCH |
| Potamogeton pectinatus | GB, VC1 West Cornwall, Penzance | Elizabeth Anne Lomax | Charles Bailey | 8/1875 | MANCH |
| Potamogeton pectinatus | GB, VC1 West Cornwall, Saint Mary's, Scilly Isles | William Curnow | Charles Bailey John Harbord Lewis | 7/1876 | MANCH |
| Potamogeton pectinatus | GB, VC1 West Cornwall, Saint Mary's, Scilly Isles | William Curnow | Charles Bailey John Harbord Lewis | 24/5/1876 | MANCH |
| Potamogeton pectinatus | GB, VC1 West Cornwall, Saint Mary's, Scilly Isles | William Curnow | Lomax | 5/1876 | MANCH |
| Potamogeton pectinatus | GB, VC1 West Cornwall, Saint Mary's, Scilly Isles | William Curnow | Lomax | 7/1876 | MANCH |
| Potamogeton pectinatus | GB, VC1 West Cornwall, Scilly Isles,Saint Marys | William Curnow | | 5/1876 7/1876 | MANCH |
| Potamogeton pectinatus | GB, VC1 West Cornwall, Scilly Isles,Saint Marys | Elizabeth Anne Lomax | | 5/1876 | MANCH |
| Potamogeton pectinatus | GB, VC7 North Wiltshire, Limpley Stoke | Charles Bailey | Charles Bailey | 27/7/1893 | MANCH |
| Potamogeton pectinatus | GB, VC9 Dorset, Wareham | Edward Francis Linton | Alfred Fryer Edward Francis Linton Charles Bailey | 8/10/1894 | MANCH |
| Potamogeton pectinatus | GB, VC11 South Hampshire, Hill Head | William Lowndes Notcutt | Charles Bailey William Lowndes Notcutt | 5/1844 | MANCH |
| Potamogeton pectinatus | GB, VC13 West Sussex, Littlehampton | J L Warren | Charles Bailey J L Warren | 8/1873 | MANCH |
| Potamogeton pectinatus | GB, VC13 West Sussex, Pagham Harbour | Joseph Edward Little | Watson Botanical Exchange Club Joseph Edward Little | 15/6/1914 | MANCH |
| Potamogeton pectinatus | GB, VC14 East Sussex, Cuckmere | | Charles Bailey John Harbord Lewis Alfred Merle Norman | 6/8/1860 | MANCH |
| Potamogeton pectinatus | GB, VC14 East Sussex, Rye GB, VC14 East Sussex, Winchelsea | Charles Bailey | Charles Bailey | 13/6/1878 | MANCH |
| Potamogeton pectinatus | GB, VC14 East Sussex, Rye Harbour | Charles Bailey | Charles Bailey | 4/10/1906 | MANCH |
| Potamogeton pectinatus | GB, VC15 East Kent, Sandwich | Edward Shearburn Marshall | Charles Bailey Edward Shearburn Marshall Eyre Champion de Crespigny | 6/7/1893 | MANCH |
| Potamogeton pectinatus | GB, VC16 West Kent, Dartford | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny Eyre de Crespigny | 1884 | MANCH |
| Potamogeton pectinatus | GB, VC17 Surrey | Eyre Champion de Crespigny | Charles Bailey | | MANCH |
| Potamogeton pectinatus | GB, VC17 Surrey, Basingstoke Canal GB, VC17 Surrey, Pirbright | Eyre Champion de Crespigny | Charles Bailey Eyre de Crespigny | 1881 | MANCH |
| Potamogeton pectinatus | GB, VC17 Surrey, Guildford | William Hadden Beeby | Charles Bailey | 18/9/1882 | MANCH |
| Potamogeton pectinatus | GB, VC17 Surrey, Guildford | William Hadden Beeby | Botanical Exchange Club of The British Isles Charles Bailey John Harbord Lewis | 6/8/1883 | MANCH |
| Potamogeton pectinatus | GB, VC17 Surrey, Guildford | William Hadden Beeby | Charles Bailey | 9/1882 | MANCH |
| Potamogeton pectinatus | GB, VC17 Surrey, Kew | A Johnstone | Bowman | | MANCH |
| Potamogeton pectinatus | GB, VC17 Surrey, River Wey | William Hadden Beeby | Charles Bailey | 6/8/1883 | MANCH |
| Potamogeton pectinatus | GB, VC21 Middlesex, Ruislip | William Marsden Hind | Charles Bailey | 31/7/1860 | MANCH |
| Potamogeton pectinatus | GB, VC22 Berkshire, Oxford | George Claridge Druce | Botanical Exchange Club of The British Isles Charles Bailey George Claridge Druce | 6/1882 | MANCH |