| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Red Rail | Augustin Ley | Augustin Ley | 29/4/1907 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC17 Surrey, Kew | Augustin Ley | Augustin Ley | 30/10/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC55 Leicestershire, Lutterworth | Augustin Ley | Augustin Ley | 2/8/1882 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC35 Monmouthshire, Trelleck | Augustin Ley | Augustin Ley | 19/8/1876 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Sellack Cultivated | Augustin Ley | Augustin Ley | 5/1892 10/1892 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Greytree | Augustin Ley | Augustin Ley | 25/8/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Dadnor | Augustin Ley | Augustin Ley | 10/5/1909 14/8/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC40 Shropshire, Longville | Augustin Ley | Augustin Ley | 23/7/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Upton Bishop | Augustin Ley | Augustin Ley | 21/6/1908 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Ross | Augustin Ley | Augustin Ley | 25/8/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Hope Mansell | Augustin Ley | Augustin Ley | 8/9/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC35 Monmouthshire, Monmouth | Augustin Ley | Augustin Ley | 26/10/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC7 North Wiltshire, Langley Burrell | Augustin Ley | Augustin Ley | 10/10/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC35 Monmouthshire, Llangattock | Augustin Ley | Augustin Ley | 8/5/1909 30/5/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Hope Mansell | Augustin Ley | Augustin Ley | 8/9/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Wythall | Augustin Ley | Augustin Ley | 1/10/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC20 Hertfordshire, Beechwood | Augustin Ley | Augustin Ley | 8/9/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC38 Warwickshire, Myton | Henry Bromwich | Augustin Ley | 4/1878 9/1878 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC17 Surrey, Kew Gardens | Albert Bruce Jackson | Augustin Ley | 25/8/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Brampton Abbotts | Augustin Ley | Augustin Ley | 23/5/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC1 West Cornwall, Truro | Albert Bruce Jackson | Botanical Exchange Club of The British Isles Albert Bruce Jackson Augustin Ley | 8/1908 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Bishop's Wood | Augustin Ley | Augustin Ley | 8/9/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC17 Surrey, Kew Gardens | Albert Bruce Jackson | Augustin Ley | 25/8/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Llangarron | Augustin Ley | Augustin Ley | 19/9/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Breinton | Augustin Ley | Augustin Ley | 30/8/1882 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Much Dewchurch Cultivated | Augustin Ley | Augustin Ley | 26/7/1879 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC17 Surrey, Kew | John Gilbert Baker | Botanical Exchange Club of The British Isles Augustin Ley | 7/1880 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC53 South Lincolnshire, Skellingthorpe | Augustin Ley | Augustin Ley | 17/8/1907 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Eaton Bishop | Augustin Ley | Augustin Ley | 7/10/1884 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC29 Cambridgeshire, Shudy Camps | Augustin Ley | Augustin Ley | 16/9/1881 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Dadnor Court | Augustin Ley | Augustin Ley | 24/8/1882 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Much Dewchurch | Augustin Ley | Augustin Ley | 1/7/1881 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC8 South Wiltshire, Salisbury | Edward Francis Linton | Augustin Ley Edward Francis Linton | 5/1909 8/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC17 Surrey, Kew | | Augustin Ley Edward Francis Linton | 5/1909 8/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Bishop's Wood | Augustin Ley | Augustin Ley | 8/9/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Coughton | Augustin Ley | Augustin Ley | 10/6/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Ross | Augustin Ley | Augustin Ley | 9/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC31 Huntingdonshire, Huntingdon | Augustin Ley | Augustin Ley | 10/8/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Hope Mansell | Augustin Ley | Augustin Ley | 8/9/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Walford | Augustin Ley | Augustin Ley | 19/10/1909 | BIRM |