| Potamogeton perfoliatus | GB, VC36 Herefordshire, Goodrich | Charles Bailey | Charles Bailey | 19/5/1875 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC36 Herefordshire, Red Rail | George Taylor | The British Museum | 28/7/1948 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC36 Herefordshire, Sellack | Augustin Ley | Elizabeth Anne Lomax | 15/7/1877 | MANCH |
| Potamogeton perfoliatus | GB, VC38 Warwickshire, Leamington | Charles Bailey | Charles Bailey | 2/6/1898 | MANCH |
| Potamogeton perfoliatus | GB, VC38 Warwickshire, Tamworth | Frederick Thompson Mott | Charles Bailey Frederick Thompson Mott Thomas Thorp | 12/6/1883 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC38 Warwickshire, Warwick | Henry Bromwich | Charles Bailey Henry Bromwich | 8/1882 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC38 Warwickshire, Warwick | Robert Large Baker | Botanical Exchange Club of The British Isles Charles Bailey | 9/1882 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC38 Warwickshire, Warwick | Henry Bromwich | Lomax | 8/1884 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC38 Warwickshire, Warwick | Henry Bromwich | Elizabeth Anne Lomax | 8/1882 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC38 Warwickshire, Warwick | Henry Bromwich | Botanical Exchange Club of The British Isles Elizabeth Anne Lomax | 8/1886 | MANCH |
| Potamogeton lucens x perfoliatus = P. x salicifolius | GB, VC38 Warwickshire, Warwick | Henry Bromwich | Botanical Exchange Club of The British Isles | 8/1886 | MANCH |
| Potamogeton perfoliatus | GB, VC38 Warwickshire, Warwick | Henry Bromwich | Charles Bailey | 8/1884 | MANCH |
| Potamogeton perfoliatus | GB, VC52 Anglesey, Anglesey | John Edwards Griffith | Botanical Exchange Club of The British Isles | 6/1889 | MANCH |
| Potamogeton perfoliatus | GB, VC52 Anglesey, Lligwy | Charles Bailey | Charles Bailey | 1/9/1875 | MANCH |
| Potamogeton perfoliatus | GB, VC52 Anglesey, Llyn Coron | | Botanical Exchange Club of The British Isles William Wilson | 7/1824 15/7/1825 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC54 North Lincolnshire, Belton | George Taylor | The British Museum | 2/8/1941 | MANCH |
+ | Potamogeton praelongus x perfoliatus = P. x cognatus | GB, VC54 North Lincolnshire, Belton | John Martin Taylor | British Museum (Natural History) The British Museum | 22/12/1943 | MANCH |
+ | Potamogeton praelongus x perfoliatus = P. x cognatus | GB, VC54 North Lincolnshire, Belton | John Martin Taylor | British Museum (Natural History) Flora of Leicestershire (1886) | 3/7/1944 | MANCH |
+ | Potamogeton praelongus x perfoliatus = P. x cognatus | GB, VC54 North Lincolnshire, Belton | John Martin Taylor | The British Museum | 3/7/1944 | MANCH |
| Potamogeton perfoliatus | GB, Lincolnshire, Lincoln | Fletcher | | 6/1862 | MANCH |
| Potamogeton perfoliatus | GB, Lincolnshire, Lincoln | Fletcher | | 6/1862 | MANCH |
| Potamogeton perfoliatus | GB, VC55 Leicestershire, Brooksby | Frederick Thompson Mott | Charles Bailey Frederick Thompson Mott Thomas Thorp | 8/1885 | MANCH |
| Potamogeton perfoliatus | GB, VC55 Leicestershire, Leicester | Frederick Thompson Mott | Charles Bailey Frederick Thompson Mott Thomas Thorp | 6/1876 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC55 Leicestershire, Loughborough | Frederick Thompson Mott | Charles Bailey Frederick Thompson Mott Thomas Thorp | 24/7/1890 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC55 Leicestershire, Loughborough | Albert Bruce Jackson | Botanical Exchange Club of The British Isles Albert Bruce Jackson Charles Bailey | 8/1898 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC55 Leicestershire, Loughborough | Albert Bruce Jackson | Botanical Exchange Club of The British Isles Charles Bailey | 8/1898 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC55 Leicestershire, Loughborough | Albert Bruce Jackson | Albert Bruce Jackson Charles Bailey | 8/1898 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC55 Leicestershire, Loughborough | Edgar Franklin Cooper | Alfred Fryer Frederick Thompson Mott Charles Bailey | 7/1885 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC55 Leicestershire, Loughborough | Edgar Franklin Cooper | Alfred Fryer Charles Bailey | 7/1885 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC55 Leicestershire, Loughborough | Edgar Franklin Cooper | Charles Bailey | 4/8/1890 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC55 Leicestershire, Loughborough | Alfred Fryer | Charles Bailey Edgar Franklin Cooper | 11/9/1890 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC55 Leicestershire, Loughborough | Edgar Franklin Cooper | Botanical Exchange Club of The British Isles Charles Bailey | 8/1891 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC55 Leicestershire, Loughborough | Edgar Franklin Cooper | Botanical Exchange Club of The British Isles | 8/7/1892 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC55 Leicestershire, Loughborough | Edgar Franklin Cooper | Alfred Fryer Charles Bailey | 23/7/1897 | MANCH |
| Potamogeton perfoliatus | GB, VC55 Leicestershire, Moira | Frederick Thompson Mott | Charles Bailey Frederick Thompson Mott Thomas Thorp | 26/8/1878 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC55 Leicestershire, Quorndon | Frances Louisa Foord-Kelcey | Botanical Exchange Club of The British Isles Manchester Museum Charles Bailey | 19/8/1907 | MANCH |
| Potamogeton perfoliatus | GB, VC55 Leicestershire, River Soar | Frederick Thompson Mott | Charles Bailey Frederick Thompson Mott Thomas Thorp | 7/1884 | MANCH |
| Potamogeton perfoliatus | GB, VC55 Leicestershire, Stapleford Park | Frederick Thompson Mott | Charles Bailey Frederick Thompson Mott Thomas Thorp | 7/1897 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC56 Nottinghamshire, Misson | J Brown | The British Museum | 7/5/1949 | MANCH |
| Potamogeton perfoliatus | GB, VC56 Nottinghamshire, Misson | J Brown | | 31/5/1948 | MANCH |