| Salix cinerea subsp. oleifolia | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 4/4/1842 to 14/7/1842 | BIRM |
| Salix viminalis | GB, VC19 North Essex, Audley End Cultivated | John Ewbank Leefe | Donor Unknown | 4/4/1842 | BIRM |
| Salix viminalis | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 4/4/1842 | BIRM |
| Salix cinerea subsp. oleifolia | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 5/4/1842 12/8/1842 | BIRM |
| Salix viminalis | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 5/4/1842 to 30/7/1842 | BIRM |
| Salix viminalis | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 5/4/1842 10/7/1842 | BIRM |
| Salix purpurea x viminalis = S. x rubra | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 6/4/1842 17/7/1842 | BIRM |
| Salix cinerea subsp. oleifolia | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 6/4/1842 22/7/1842 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | Charles Cardale Babington John Ewbank Leefe | 7/4/1842 27/6/1842 9/7/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | Charles Cardale Babington John Ewbank Leefe | 9/4/1842 23/7/1842 | CGE |
| Salix cinerea subsp. oleifolia | GB, VC65 North-west Yorkshire, Richmond | John Ewbank Leefe | Donor Unknown | 9/4/1842 to 4/7/1842 | BIRM |
| Salix viminalis x cinerea = S. x holosericea | GB, VC65 North-west Yorkshire, Richmond | James Ward John Ewbank Leefe | Chenevix-Trench | 9/4/1842 4/7/1842 | MANCH |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 15/4/1842 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 24/4/1842 16/8/1842 | BIRM |
| Salix triandra | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 25/4/1842 | BIRM |
| Salix triandra | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 26/4/1842 25/7/1842 | BIRM |
| Salix triandra | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 4/5/1842 12/8/1842 | BIRM |
| Salix fragilis x alba = S. x rubens | GB, VC65 North-west Yorkshire, Easby | James Ward | Charles Cardale Babington John Ewbank Leefe | 4/5/1842 16/7/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | John Stevens Henslow | 7/5/1842 | CGE |
| Salix triandra | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 9/5/1842 12/8/1842 | BIRM |
| Salix triandra | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 9/5/1842 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | Charles Cardale Babington John Ewbank Leefe | 11/5/1842 6/8/1842 | CGE |
| Salix pentandra | GB, VC65 North-west Yorkshire, Gilling | James Ward | John Ewbank Leefe | 2/6/1842 | SLBI |
| Salix viminalis x cinerea = S. x holosericea | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Chenevix-Trench | 9/7/1842 | MANCH |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 9/7/1842 | BIRM |
| Salix viminalis | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 12/7/1842 | BIRM |
| Salix viminalis | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 12/7/1842 | BIRM |
| Salix viminalis | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 16/7/1842 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 19/7/1842 | BIRM |
| Salix viminalis | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 12/8/1842 | BIRM |
| Salix triandra | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 12/8/1842 | BIRM |
| Salix viminalis x caprea x cinerea = S. x calodendron | GB, VC19 North Essex, Audley End | John Ewbank Leefe | | 18/8/1842 | BIRM |
| Salix viminalis x caprea x cinerea = S. x calodendron | GB, VC19 North Essex, Audley End | John Ewbank Leefe | | 18/8/1842 | MANCH |
| Salix cinerea x myrsinifolia = S. x strepida | GB, VC29 Cambridgeshire, Cambridge Botanic Gardens Cultivated | John Ewbank Leefe | Richmond Museum Charles Bailey James Ward | 5/5/1866 14/9/1866 | MANCH |
| Carex diandra | GB, VC65 North-west Yorkshire, Halnaby | | John Ewbank Leefe | 6/1866 | E |
| Salix aurita x myrsinifolia = S. x coriacea | GB, VC29 Cambridgeshire, Cambridge Botanic Gardens Cultivated | John Ewbank Leefe | Charles Bailey | 20/4/1867 14/4/1868 7/8/1868 | MANCH |
| Salix aurita x myrsinifolia = S. x coriacea | GB, VC29 Cambridgeshire, Cambridge Botanic Gardens Cultivated | John Ewbank Leefe | Charles Bailey | 20/4/1867 14/4/1868 7/8/1868 | MANCH |
| Salix aurita x myrsinifolia = S. x coriacea | GB, VC29 Cambridgeshire, Cambridge Botanic Gardens Cultivated | John Ewbank Leefe | Charles Bailey | 20/4/1867 14/4/1868 7/8/1868 | MANCH |
| Salix aurita x myrsinifolia = S. x coriacea | GB, VC29 Cambridgeshire, Cambridge Botanic Gardens Cultivated | John Ewbank Leefe | Richmond Museum Charles Bailey James Ward | 20/4/1867 14/4/1868 7/8/1868 | MANCH |
| Salix caprea x myrsinifolia = S. x latifolia | GB, VC30 Bedfordshire, Woburn Cultivated | John Ewbank Leefe | Charles Bailey | 26/4/1867 25/4/1868 27/4/1869 21/8/1869 | MANCH |