| 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, VC17 Surrey, Kew | | Augustin Ley | 5/1909 8/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC17 Surrey, Kew | | Augustin Ley | 5/1909 8/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Ross, Travellers' Rest | Augustin Ley | Augustin Ley | 5/1909 7/1909 | 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, VC35 Monmouthshire, Monmouth | Augustin Ley | Augustin Ley | 8/5/1909 | 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, VC36 Herefordshire, Dadnor | Augustin Ley | Augustin Ley | 10/5/1909 14/8/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Sellack | Augustin Ley | Augustin Ley | 10/5/1909 14/8/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC8 South Wiltshire, Salisbury | Augustin Ley | Augustin Ley | 25/6/1909 | 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, Greytree | Augustin Ley | Augustin Ley | 25/8/1909 | 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, Ross | Augustin Ley | Augustin Ley | 9/1909 | 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, Hereford | Augustin Ley | Augustin Ley | 23/9/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Hereford | Augustin Ley | Augustin Ley | 23/9/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Greytree | | Augustin Ley | 24/9/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Greytree | Augustin Ley | Augustin Ley | 24/9/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Howle Hill | | | 1/10/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Ross on Wye | | Augustin Ley | 1/10/1909 | 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, VC36 Herefordshire, Wythall | Augustin Ley | Augustin Ley | 1/10/1909 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Walford | Augustin Ley | Augustin Ley | 19/10/1909 | 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, VC17 Surrey, Kew | Augustin Ley | Augustin Ley | 30/10/1909 | 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, VC36 Herefordshire, Coughton | Augustin Ley | Augustin Ley | 10/6/1910 | 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, VC69 Westmorland, Hawes Water | Augustin Ley | Augustin Ley | 1/7/1910 | 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, VC31 Huntingdonshire, Huntingdon | Augustin Ley | Augustin Ley | 10/8/1910 | 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, VC17 Surrey, Kew Gardens | Albert Bruce Jackson | Augustin Ley | 25/8/1910 | 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, VC17 Surrey, Kew Gardens | Albert Bruce Jackson | Augustin Ley | 25/8/1910 | 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, VC34 West Gloucestershire, Drybrook | Augustin Ley | Augustin Ley | 8/9/1910 | BIRM |
| Ulmus glabra x minor x plotii = U. x hollandica | GB, VC36 Herefordshire, Bishop's Wood | Augustin Ley | Augustin Ley | 8/9/1910 | BIRM |