| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC1 West Cornwall, Penzance | Philip Brookes Mason | Philip Brookes Mason | 1872 | BON |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC3 South Devon, Bigbury | Edward Shearburn Marshall | Botanical Exchange Club of The British Isles Charles Bailey | 19/6/1894 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC3 South Devon, Bigbury | Edward Shearburn Marshall | Botanical Exchange Club of The British Isles Augustin Ley | 19/6/1894 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, Devon | | Mantua And Montferrat | | BON |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC6 North Somerset, Edington | Harold Stuart Thompson John Wilton Haines William Graveson | Harold Stuart Thompson | 25/6/1932 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC8 South Wiltshire, Warminster | E Ellman Harold Stuart Thompson | Harold Stuart Thompson | 11/9/1923 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, Hampshire, Winchester | William Webb Spicer | | 7/1871 | BON |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC15 East Kent, Sandgate | Samuel Octavus Gray | | 7/1884 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC16 West Kent, Beckenham | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC16 West Kent, Darenth | Edward Shearburn Marshall | Charles Bailey | 8/6/1893 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC16 West Kent, Eynsford | Edward Shearburn Marshall | Augustin Ley | 8/6/1893 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | Cultivated GB, VC17 Surrey | Hewett Cottrell Watson | Mantua And Montferrat | 1844 | BON |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC17 Surrey, Fetcham | James Groves | | 26/6/1897 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC21 Middlesex, Hampstead | | Charles Bailey John Wilson Rimington Spencer Henry Bickham | 1849 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC21 Middlesex, Willesden | William Richardson Linton | Charles Bailey William Richardson Linton | 24/6/1884 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC28 West Norfolk, Fakenham | W Horton-Smith | | | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC29 Cambridgeshire, Ely | John Stevens Henslow | Charles Ottley Groom | 2/9/1833 | BON |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC32 Northamptonshire, Aldwincle | Augustin Ley | Augustin Ley | 2/8/1910 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC34 West Gloucestershire, Bristol | John Norton Mills John Patrick Micklethwait Brenan | | 30/6/1941 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC35 Monmouthshire, Llanfihangel Ystern Llewern | Augustin Ley | Augustin Ley | 4/7/1885 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC35 Monmouthshire, Tintern | Augustin Ley | Augustin Ley | 22/6/1878 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC36 Herefordshire, Bodenham | Augustin Ley | Augustin Ley | 16/6/1886 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC36 Herefordshire, Fownhope | Augustin Ley | Charles Bailey | 14/9/1871 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC36 Herefordshire, Fownhope | Augustin Ley | Charles Bailey | 14/9/1871 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC36 Herefordshire, Hentland, Ross | Augustin Ley | Augustin Ley | 7/7/1894 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC36 Herefordshire, King's Caple | Augustin Ley | Charles Bailey | 19/6/1876 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC36 Herefordshire, King's Caple | Augustin Ley | Charles Bailey | 16/9/1871 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC36 Herefordshire, King's Caple | | George Stephen West John Harbord Lewis | 19/6/1876 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC36 Herefordshire, Leominster | | Augustin Ley | 21/6/1890 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC36 Herefordshire, Sellack | Augustin Ley | Botanical Exchange Club of The British Isles Charles Bailey | 23/6/1905 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC36 Herefordshire, Sellack | Augustin Ley | Augustin Ley | 22/6/1899 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC36 Herefordshire, Tram Inn | Augustin Ley | Augustin Ley | 11/7/1881 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC37 Worcestershire, Hunnington | James B Phipps | James B Phipps | 10/8/1955 | BIRM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC38 Warwickshire, Myton | Henry Bromwich | Charles Bailey | 7/1871 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC38 Warwickshire, Myton | Henry Bromwich | Charles Bailey | 6/1871 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC41 Glamorganshire, Aberdare | Harry Joseph Riddelsdell | Botanical Exchange Club of The British Isles Charles Bailey | 6/1902 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC41 Glamorganshire, Aberdare | Harry Joseph Riddelsdell | Botanical Exchange Club of The British Isles William Hunt Painter | 6/1902 | ABS |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC50 Denbighshire, Wrexham | | | | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC55 Leicestershire, Aylestone | Arthur Reginald Horwood | Watson Botanical Exchange Club Charles Bailey | 1/7/1905 | MANCH |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC55 Leicestershire, Holywell | | Charles Bailey Frederick Thompson Mott Thomas Thorp | 6/1882 | MANCH |