| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC89 East Perthshire, Loch Clunie [Cluny] | Francis Druce | Charles Bailey Eyre de Crespigny | | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC112 Shetland, Spiggie | | | | MANCH |
| Potamogeton perfoliatus | GB, VC52 Anglesey, Llyn Coron | | Botanical Exchange Club of The British Isles William Wilson | 7/1824 15/7/1825 | MANCH |
| Potamogeton perfoliatus | GB, VC94 Banffshire, Banff | William Alexander Stables | A Todd Charles Bailey William Lowndes Notcutt | 1839 | MANCH |
| Potamogeton perfoliatus | GB, VC63 South-west Yorkshire, Knottingley | | John Bland Wood | 1847 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC81 Berwickshire, Coldingham | John Thomas Irvine Boswell-Syme | Botanical Society of Edinburgh Fletcher | 8/1848 | MANCH |
| Potamogeton perfoliatus | IE, VCH39 Co. Antrim, River Main | Alexander Cossart Hasse | | 9/1858 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC58 Cheshire, Hale Moss | | Charles Bailey | 7/1859 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Litherland | Henry Smith Fisher | Charles Bailey John Harbord Lewis | 8/1860 | MANCH |
| Potamogeton perfoliatus | GB, VC28 West Norfolk, Fakenham | William Lowndes Notcutt | Charles Bailey William Lowndes Notcutt | 1862 | MANCH |
| Potamogeton perfoliatus | GB, Lincolnshire, Lincoln | Fletcher | | 6/1862 | MANCH |
| Potamogeton perfoliatus | GB, Lincolnshire, Lincoln | Fletcher | | 6/1862 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Worsley | Charles Bailey | Charles Bailey | 1/8/1863 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC88 Mid Perthshire, River Tay | John Sim | Charles Bailey | 7/1865 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC88 Mid Perthshire, River Tay | John Sim | William Wilson | 7/1865 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC100 Clyde Islands, Loch Ascog | George Edward Hunt | Charles Bailey George Edward Hunt | 7/1866 | MANCH |
| Potamogeton perfoliatus | IE, VCH39 Co. Antrim, Bushmills | Samuel Alexander Stewart | Richmond Museum Charles Bailey | 7/1866 | MANCH |
| Potamogeton perfoliatus | GB, VC88 Mid Perthshire, Loch Earn | Henry Alexander Hurst | Henry Alexander Hurst | 9/1866 | MANCH |
| Potamogeton perfoliatus | GB, VC59 South Lancashire, Worsley | Charles Bailey | Charles Bailey | 7/1867 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC6 North Somerset, Bath | Esther Hopkins | Charles Bailey Esther Hopkins | 6/1868 | MANCH |
| Potamogeton perfoliatus | GB, VC58 Cheshire, Pickmere | John Barrow | Charles Bailey John Barrow | 8/8/1868 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | IE, VCH22 Meath, Navan | Charles Bailey | Charles Bailey | 27/8/1868 | MANCH |
| Potamogeton perfoliatus | IE, VCH22 Meath, Navan | Charles Bailey | Charles Bailey | 27/8/1868 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC88 Mid Perthshire, Perth | John Thomas Irvine Boswell-Syme | Charles Bailey | 9/1869 | 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, VC36 Herefordshire, Goodrich | Charles Bailey | Charles Bailey | 19/5/1875 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC80 Roxburghshire, Roxburgh | Andrew Brotherston | Botanical Exchange Club Charles Bailey | 7/1875 to 8/1875 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC80 Roxburghshire, Kelso | Andrew Brotherston | Charles Bailey | 5/8/1875 | MANCH |
| Potamogeton perfoliatus | GB, VC21 Middlesex, Paddington Canal | Eyre Champion de Crespigny | Charles Bailey Eyre de Crespigny | 9/1875 | MANCH |
| Potamogeton perfoliatus | GB, VC52 Anglesey, Lligwy | Charles Bailey | Charles Bailey | 1/9/1875 | MANCH |
| Potamogeton perfoliatus | GB, VC55 Leicestershire, Leicester | Frederick Thompson Mott | Charles Bailey Frederick Thompson Mott Thomas Thorp | 6/1876 | MANCH |
| Potamogeton perfoliatus | GB, VC57 Derbyshire, Spondon | | Manchester Museum (Owens College) William Hunt Painter | 6/1876 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC80 Roxburghshire, Roxburgh | Andrew Brotherston | Botanical Exchange Club Charles Bailey | 7/1876 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC80 Roxburghshire, Roxburgh | E J Archer | Charles Bailey | 7/1876 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC80 Roxburghshire, Roxburgh | Andrew Brotherston | Charles Bailey | 7/1876 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC80 Roxburghshire, Roxburgh | John Harbord Lewis | John Harbord Lewis | 8/1876 | MANCH |
| Potamogeton perfoliatus | GB, VC34 West Gloucestershire, Gloucester | William E Green | Charles Bailey John Harbord Lewis | 6/1877 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC36 Herefordshire, Sellack | Augustin Ley | Elizabeth Anne Lomax | 15/7/1877 | MANCH |
| Potamogeton perfoliatus | GB, VC21 Middlesex, Brentford | Thomas Robertson Sim | Charles Bailey John Harbord Lewis | 7/1878 | MANCH |