| Potamogeton pusillus | | J Makin | Tyldesley Museum Natural History Society | | MANCH |
| Potamogeton pusillus | GB, VC10 Isle of Wight, Brading Harbour | Charles Bailey | Charles Bailey | 9/7/1881 | MANCH |
| Potamogeton pusillus | GB, VC13 West Sussex, Amberley | Anthony Hurt Wolley Dod Edward Shearburn Marshall | Anthony Hurt Wolley Dod Charles Bailey | 14/7/1902 | MANCH |
| Potamogeton pusillus | GB, VC14 East Sussex, Chailey Common | | Chenevix-Trench | | MANCH |
| Potamogeton pusillus | GB, VC14 East Sussex, Lewes | Chenevix-Trench | Chenevix-Trench | 1892 | MANCH |
| Potamogeton pusillus | GB, VC14 East Sussex, Lewes | George Claridge Druce | Botanical Society & Exchange Club of The British Isles George Claridge Druce | 21/6/1925 | MANCH |
| Potamogeton pusillus | GB, VC14 East Sussex, Rye GB, VC14 East Sussex, Winchelsea | Charles Bailey | Charles Bailey | 13/6/1878 | MANCH |
| Potamogeton pusillus | GB, VC17 Surrey, Kew | Thomas Robertson Sim | Charles Bailey John Harbord Lewis | 6/1878 | MANCH |
| Potamogeton pusillus | GB, VC21 Middlesex, Harefield | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1883 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 26/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 23/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 26/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 23/9/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 22/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Brograve Level | Charles Edward Moss | Botanical Exchange Club of The British Isles Cambridge University Charles Bailey | 8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Brograve Level | Charles Edward Moss | Botanical Exchange Club of The British Isles Cambridge University Charles Bailey | 28/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Horsey | James Groves | Henry & James Groves | 10/7/1912 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Norfolk Broads | Charles Edward Moss | Alfred Fryer Charles Bailey | 23/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Norfolk Broads | Charles Edward Moss | Alfred Fryer Charles Bailey | 23/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Norfolk Broads | Charles Edward Moss | Alfred Fryer Charles Bailey | 23/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC28 West Norfolk, Fakenham | W Horton-Smith | | | MANCH |
| Potamogeton pusillus | GB, VC28 West Norfolk, Wolferton | George Claridge Druce | Botanical Exchange Club of The British Isles Charles Bailey | 7/1884 | MANCH |
| Potamogeton pusillus | GB, VC30 Bedfordshire, Southill | Joseph Edward Little | Watson Botanical Exchange Club Joseph Edward Little | 27/6/1913 to 12/7/1913 | MANCH |
| Potamogeton pusillus | GB, VC33 East Gloucestershire, Stroud | Alfred Fryer | | 6/1900 | MANCH |
| Potamogeton pusillus | GB, VC50 Denbighshire, Rhydd Marsh, Prestatyn | Bowman | Bowman | 18/7/1832 | MANCH |
| Potamogeton pusillus | GB, VC50 Denbighshire, Wrexham | Bowman | Bowman | | MANCH |
| Potamogeton pusillus | GB, VC57 Derbyshire, Between Cromford and Whatstandwell | Charles Bailey | Charles Bailey | 17/7/1884 | MANCH |
| Potamogeton pusillus | GB, VC58 Cheshire, Frodsham | Charles Bailey | Charles Bailey | 30/8/1868 | MANCH |
| Potamogeton pusillus | GB, VC58 Cheshire, Pickerings o' the Boat | W Horton-Smith | W Horton-Smith | 22/8/1917 | MANCH |
| Potamogeton pusillus | GB, VC58 Cheshire, Rostherne Mere | Charles Bailey | Charles Bailey | 13/8/1892 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Haughton Green | A Croker | University of Manchester | 18/8/1948 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Liverpool, North Shore Mills | John Harbord Lewis | Charles Bailey | 24/6/1872 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Manchester | Thomas Rogers | | 7/1884 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Manchester | | John Bland Wood | 6/1840 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Openshaw | A Croker | University of Manchester | 9/8/1948 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Reddish | Charles Bailey | Charles Bailey | 14/9/1883 to 24/6/1884 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Reddish | Charles Bailey | Charles Bailey | 9/9/1885 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Reddish | Charles Bailey | Charles Bailey | 22/9/1893 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Warrington (W of) | | George Crozier | 1839 | MANCH |
| Potamogeton pusillus | GB, VC58,VC59, Reddish | | Manchester Museum (Owens College) | | MANCH |
| Potamogeton pusillus | GB, VC58,VC59, Reddish | A Croker | University of Manchester | 3/8/1948 | MANCH |
| Potamogeton pusillus | GB, VC60 West Lancashire, Ashton on Ribble | F C King | Charles Bailey F C King | 7/1883 | MANCH |
| Potamogeton pusillus | GB, VC60 West Lancashire, Preston | F C King | Charles Bailey Eyre Champion de Crespigny | 6/1883 | MANCH |
| Potamogeton pusillus | GB, VC63 South-west Yorkshire, Rothwell | George Taylor | | 21/7/1944 | MANCH |
| Potamogeton pusillus | GB, VC78 Peeblesshire, Traquair Cultivated | George Taylor | The British Museum | 5/7/1945 | MANCH |
| Potamogeton pusillus | GB, VC80 Roxburghshire, Kelso | Andrew Brotherston | Andrew Brotherston Charles Bailey John Harbord Lewis | 9/1874 | MANCH |
| Potamogeton pusillus | GB, VC111 Orkney, Mainland, Loch of Ayre | Henry Halcro Johnston | Botanical Society & Exchange Club of The British Isles | 28/8/1937 | MANCH |
+ | Potamogeton pusillus x trichoides = P. x grovesii | GB, VC27 East Norfolk, Ingham | James Groves | Botanical Exchange Club of The British Isles Charles Bailey Henry & James Groves | 11/8/1897 | MANCH |