| Callitriche autumnalis | GB, VC112 Shetland, Unst | William Hadden Beeby | | 1/9/1887 | K |
| Callitriche autumnalis | GB, Wales | Anna Russell | Shrewsbury Public Library Thomas Butler | 1837 | K |
| Callitriche autumnalis | IE, VCH16,VCH26, Cong | Charles Bailey | Charles Bailey George Stephen West | 2/10/1885 | BIRM |
| Callitriche autumnalis | IE, VCH39 Co. Antrim, Lough Neagh | Coslett Herbert Waddell | Watson Botanical Exchange Club Augustin Ley Coslett Herbert Waddell | 13/8/1909 | BIRM |
| Callitriche hermaphroditica | VCH39, Harbour Island | Coslett Herbert Waddell | Watson Botanical Exchange Club William Robert Sherrin | 18/8/1909 | SLBI |
| Callitriche hermaphroditica | | | Augustin Ley | | BIRM |
| Callitriche hermaphroditica | Sundwalden | Robert Collett | | 4/9/1863 | SLBI |
| Callitriche hermaphroditica | GB, VC16 West Kent, Darenth | St John Marriott | Watson Botanical Exchange Club Isaac A Helsby | 7/1924 | SLBI |
| Callitriche hermaphroditica | GB, VC17 Surrey, Barnes Common | William Robert Sherrin | | 7/1898 | SLBI |
| Callitriche hermaphroditica | GB, VC17 Surrey, Wotton | William Robert Sherrin | | 7/1925 | SLBI |
| Callitriche hermaphroditica | GB, VC49 Caernarvonshire, Llyn Padarn | | Douglas Montague Heath | 7/7/1921 | BIRM |
| Callitriche hermaphroditica | GB, VC52 Anglesey | William Wilson | | 7/1825 | K |
| Callitriche hermaphroditica | GB, VC52 Anglesey, Llanfaelog | John P Savidge | | 2/1/1956 | ABS |
| Callitriche hermaphroditica | GB, VC52 Anglesey, Valley | Reginald William Phillips | Albert Bruce Jackson | 9/1892 | K |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Halford | J L Warren | | 8/1870 | MANCH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Holford | John Byrne Leicester Warren | London Botanical Exchange Club Charles Bailey | 8/1870 | MANCH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Knutsford | J L Warren | Charles Bailey J L Warren | 8/1870 | MANCH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Knutsford | J L Warren | William Hadden Beeby | 8/1870 | SLBI |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | Charles Bailey | Charles Bailey | 13/8/1892 | MANCH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | Henry (Harry) Searle | Charles Bailey | 11/8/1885 | MANCH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | Henry (Harry) Searle | Manchester Museum Charles Bailey | 8/1885 | MANCH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | Charles Bailey | Charles Bailey | 13/8/1892 | MANCH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | Charles Bailey | Charles Bailey | 13/8/1892 | MANCH |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | Henry (Harry) Searle | William Hadden Beeby Arthur Bennett | 7/1885 | SLBI |
| Callitriche hermaphroditica | GB, VC58 Cheshire, Rostherne Mere | W Horton-Smith | | 23/8/1916 | MANCH |
| Callitriche hermaphroditica | GB, VC60 West Lancashire, Preston | F C King | Charles Bailey | 8/1883 | MANCH |
| Callitriche hermaphroditica | GB, VC60 West Lancashire, Thurnham | John P Savidge | | 19/9/1956 | ABS |
| Callitriche hermaphroditica | GB, Lancashire, Lytham | | Moon | 1883 | MANCH |
| Callitriche hermaphroditica | GB, Lancashire, Thurnham | John P Savidge | John P Savidge | 11/9/1956 | ABS |
| Callitriche hermaphroditica | GB, VC70 Cumberland, Keswick | Joseph Woods | Allan Octavian Hume Frederick Townsend | 26/7/1835 | SLBI |
| Callitriche hermaphroditica | GB, VC82 East Lothian, Dunbar | McTaggert Cowan | London Natural History Society Watson Botanical Exchange Club Edmund Browne Bishop McTaggert Cowan | 7/1911 | SLBI |
| Callitriche hermaphroditica | GB, VC85 Fifeshire, Kilconquhar Cultivated | G West | Arthur Bennett | 1909 | SLBI |
| Callitriche hermaphroditica | GB, VC85 Fifeshire, Loch Fitty | George Stephen West | Allan Octavian Hume Arthur Bennett | 9/1909 | SLBI |
| Callitriche hermaphroditica | GB, VC86 Stirlingshire, Falkirk | James Groves John Stirling Stirling Robert Kidston | | 24/8/1891 | SLBI |
| Callitriche hermaphroditica | GB, VC89 East Perthshire, Marlee Loch | James Groves | Robert Kidston William Hadden Beeby | 15/7/1884 | SLBI |
| Callitriche hermaphroditica | GB, VC89 East Perthshire, Marlee Loch | Abram Sturrock James Groves | | 15/7/1884 | SLBI |
| Callitriche hermaphroditica | GB, VC90 Angus, Rescobie Loch | William Gardiner | Croydon Natural History and Scientific Society Henry Franklin Parsons | 8/1843 | SLBI |
| Callitriche hermaphroditica | GB, VC92 South Aberdeenshire, Loch Callater | George Claridge Druce | William Hunt Painter | 7/1883 | ABS |
| Callitriche hermaphroditica | IE, VCH16,VCH26, Cong | Charles Bailey | Botanical Exchange Club of The British Isles Charles Bailey William Hunt Painter | 2/10/1885 | ABS |
| Callitriche hermaphroditica | IE, VCH2 North Kerry, KIllarney lakes | Robert Albert Phillips | Allan Octavian Hume | 7/1899 | SLBI |
| Callitriche hermaphroditica | IE, VCH26 East Mayo, Cong | Charles Bailey | William Hadden Beeby | 2/10/1885 | SLBI |
| Callitriche hermaphroditica | IE, VCH38 Co. Down, Aughnadarragh | Coslett Herbert Waddell | Allan Octavian Hume Coslett Herbert Waddell | 8/1896 | SLBI |
| Callitriche hermaphroditica | IE, VCH39 Co. Antrim, Antrim | William Mateer | Harold Stuart Thompson Thomas Clark | | BIRM |
| Callitriche hermaphroditica | IE, VCH39 Co. Antrim, Toome | Robert Lloyd Praeger | Robert Lloyd Praeger | 6/1893 | DBC |