| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC56 Nottinghamshire, Wiseton,Drakeholes | George Taylor | | 2/8/1941 | MANCH |
| Potamogeton perfoliatus | GB, VC57 Derbyshire, Borrowash | William Hunt Painter | William Hunt Painter | 12/6/1893 | MANCH |
| Potamogeton perfoliatus | GB, VC57 Derbyshire, Cromford | Charles Bailey | Charles Bailey | 17/7/1884 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC57 Derbyshire, Ockbrook | Alexander Cossart Hasse | Alexander Cossart Hasse | 6/1884 | MANCH |
| Potamogeton perfoliatus | GB, VC57 Derbyshire, Spondon | | Manchester Museum (Owens College) William Hunt Painter | 6/1876 | MANCH |
| Potamogeton perfoliatus | GB, VC57 Derbyshire, Spondon | William Hunt Painter | William Hunt Painter | 7/1878 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC58 Cheshire, Chester Cultivated | Alfred Fryer | Charles Bailey | 29/7/1890 to 4/8/1890 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC58 Cheshire, Chester | Christopher Robert Billups | Charles Bailey | 11/9/1891 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC58 Cheshire, Chester | Christopher Robert Billups | Alfred Fryer Charles Bailey | 24/7/1897 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC58 Cheshire, Chester | Christopher Robert Billups | Charles Bailey | 24/7/1897 | MANCH |
+ | Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC58 Cheshire, Chester (12 miles south of) | Christopher Robert Billups | | 11/9/1891 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC58 Cheshire, Hale Moss | | Charles Bailey | 7/1859 | MANCH |
| Potamogeton perfoliatus | GB, VC58 Cheshire, Macclesfield | H L Craven | | 21/7/1906 | MANCH |
| Potamogeton perfoliatus | GB, VC58 Cheshire, Pickmere | John Barrow | Charles Bailey John Barrow | 8/8/1868 | MANCH |
| Potamogeton perfoliatus | GB, VC58 Cheshire, Pickmere | W Horton-Smith | | 15/8/1907 | MANCH |
| Potamogeton perfoliatus | GB, VC58 Cheshire, Pickmere | W Horton-Smith | | 15/8/1917 | MANCH |
| Potamogeton perfoliatus | GB, VC58 Cheshire, Poynton | Charles Bailey | Charles Bailey | 12/8/1899 | MANCH |
| Potamogeton perfoliatus | GB, VC58 Cheshire, Poynton,Poynton Park | Charles Bailey | Charles Bailey | 10/9/1892 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC58 Cheshire, River Dee Cultivated | Alfred Fryer | Charles Bailey | 6/9/1890 | MANCH |
| Potamogeton perfoliatus | GB, VC58 Cheshire, River Weaver | W Horton-Smith | | 22/8/1917 | MANCH |
| Potamogeton perfoliatus | GB, VC58 Cheshire, Winnington | W Horton-Smith | | 29/7/1915 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Astley | | Tyldesley Museum Natural History Society | 1895 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Birkdale | John Harbord Lewis | Charles Bailey | 22/8/1883 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Droylsden | A Croker | University of Manchester | 17/8/1948 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Droylsden | A Croker | University of Manchester | 28/8/1948 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Droylsden | A Croker | University of Manchester | 7/9/1948 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Hightown | John Harbord Lewis | Charles Bailey John Harbord Lewis | 12/7/1880 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Litherland | Henry Smith Fisher | Charles Bailey John Harbord Lewis | 8/1860 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Litherland | John Harbord Lewis | Charles Bailey John Harbord Lewis | 15/7/1873 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Tyldesley | William Isaac Hannan | Charles Bailey John Harbord Lewis | 7/1874 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Worsley | Charles Bailey | Charles Bailey | 1/8/1863 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Worsley | Charles Bailey | Charles Bailey | 7/1867 | MANCH |
| Potamogeton perfoliatus | GB, VC63 South-west Yorkshire, Knottingley | | John Bland Wood | 1847 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC64 Mid-west Yorkshire, Ilkley | Albert Wilson | | 8/1910 | MANCH |
| Potamogeton perfoliatus | GB, VC64 Mid-west Yorkshire, Malham Tarn | Effie Moira Rosser | | 19/7/1954 | MANCH |
| Potamogeton perfoliatus | GB, VC64 Mid-west Yorkshire, Malham Tarn | Effie Moira Rosser | | 20/7/1954 | MANCH |
| Potamogeton perfoliatus | GB, VC64 Mid-west Yorkshire, Pool | H L Craven | | 5/6/1906 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC68 North Northumberland, Coldstream,Wark | Charles Bailey | Charles Bailey | 17/7/1900 | MANCH |
| Potamogeton perfoliatus | GB, VC69 Westmorland, Coniston Water | Charles Bailey | Charles Bailey | 22/9/1882 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC69 Westmorland, Eamont Bridge | Catherine Muriel Rob | | 18/9/1949 | MANCH |