| Mentha arvensis x spicata = M. x gracilis | GB, VC59 South Lancashire, Warrington | William Wilson | John Stevens Henslow | 8/1824 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC83 Midlothian, Roslin | John Hutton Balfour | John Stevens Henslow | 9/1835 | CGE |
| Salix fragilis x alba = S. x rubens | GB, VC65 North-west Yorkshire, Easby | James Ward | John Stevens Henslow | 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 viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | John Stevens Henslow | 19/3/1842 19/7/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | John Stevens Henslow | 25/3/1842 9/4/1842 22/4/1842 21/6/1842 9/7/1842 23/7/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | John Stevens Henslow | 9/4/1842 27/6/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | John Stevens Henslow | 11/5/1842 to 8/6/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | John Stevens Henslow | 7/4/1842 9/7/1842 | CGE |
| Carex canescens | GB, VC58,VC59, Warrington | | John Ball John Stevens Henslow | | E |
| Carex lasiocarpa | GB, VC29 Cambridgeshire, Swaffham | John Stevens Henslow | | 26/5/1834 | E |
| Carex lasiocarpa | GB, VC29 Cambridgeshire, Swaffham | John Stevens Henslow | | 26/5/1834 | E |
| Carex muricata | GB, Devon, Devonshire | John Stevens Henslow | | | E |
| Carex paniculata | GB, VC29 Cambridgeshire, Fulbourn | | John Ball John Stevens Henslow | | E |
| Carex pseudocyperus | GB, VC29 Cambridgeshire, Fulbourn | | John Ball John Stevens Henslow | | E |
| Damasonium alisma | GB, VC17 Surrey, Putney Heath | John Ball | John Hutton Balfour John Stevens Henslow | | E |
| Damasonium alisma | GB, VC17 Surrey, Putney Heath | John Stevens Henslow | | 1827 | E |
| Potamogeton coloratus x berchtoldii = P. x lanceolatus | GB, VC52 Anglesey, Anglesey | John Stevens Henslow | John Stevens Henslow | 1826 | E |
| Astragalus danicus | GB, VC81 Berwickshire | George Johnston | John Stevens Henslow Leicester Darwall Beatrice Frederica Lovibond | 1831 | K |
| Bupleurum tenuissimum | GB, VC15 East Kent, Rainham | John Stevens Henslow | | | K |
| Bupleurum tenuissimum | GB, Kent, Strood | John Stevens Henslow | William Jackson Hooker | 1/9/1825 | K |
| Bupleurum tenuissimum | GB, Kent, Strood | John Stevens Henslow | Beatrice Frederica Lovibond Leicester Darwall | 7/9/1825 | K |
| Clinopodium ascendens | GB, VC29 Cambridgeshire, Burwell | John Stevens Henslow | William Jackson Hooker | 23/8/1822 | K |
| Cuscuta epithymum | GB, VC22 Berkshire, Carleigh | J Downes John Stevens Henslow | | 4/8/1830 | K |
| Mentha arvensis | GB, VC29 Cambridgeshire, Cherry Hinton | John Stevens Henslow | William Jackson Hooker | 27/7/1824 | K |
| Tephroseris integrifolia | GB, VC29 Cambridgeshire, Gog Magog | John Stevens Henslow | Richard Chandler Alexander Prior | 5/1836 | K |
| Tephroseris integrifolia | GB, VC29 Cambridgeshire, Gog Magog | John Stevens Henslow | | 24/5/1834 | K |
| Tephroseris integrifolia | GB, VC29 Cambridgeshire, Gog Magog Hills | John Stevens Henslow | | | K |
| Verbascum pulverulentum | GB, VC26 West Suffolk, Bury Saint Edmunds | | Botanical Society of Edinburgh John Stevens Henslow | 7/1841 | K |
| Verbascum pulverulentum | GB, VC26 West Suffolk, Bury Saint Edmunds | John Stevens Henslow | George Lloyd William Groves Perry Botanical Society of Edinburgh | 7/1841 | K |
| Veronica spicata | GB, VC29 Cambridgeshire, Newmarket Heath | John Stevens Henslow | William Jackson Hooker | 28/7/1823 | K |
| Agrostis stolonifera x Polypogon monspeliensis = x Agropogon littoralis | GB, VC27 East Norfolk, Cley | William Whitear | John Stevens Henslow William Allport Leighton | 30/6/1834 | MANCH |
+ | Ajuga chamaepitys | GB, VC15 East Kent, Chatham | John Stevens Henslow | Warrington Museum William Wilson | 15/7/1826 | MANCH |
+ | Ajuga chamaepitys | GB, VC15 East Kent, Sutton | John Stevens Henslow | Warrington Museum William Wilson | 5/8/1825 | MANCH |
+ | Althaea hirsuta | GB, VC16 West Kent, Cuxton | | A J Mary Gray Samuel Octavus Gray John Stevens Henslow | 11/7/1827 | MANCH |
+ | Althaea hirsuta | GB, VC16 West Kent, Cuxton | John Stevens Henslow | John Bland Wood John Stevens Henslow | 11/7/1827 | MANCH |
+ | Althaea hirsuta | GB, VC17 Surrey, Cobham | John Stevens Henslow | Warrington Museum William Wilson | 1827 | MANCH |
+ | Astragalus danicus | GB, VC29 Cambridgeshire, Gog Magog Hills | John Stevens Henslow | William Wilson | 24/5/1826 | MANCH |
+ | Bupleurum baldense | GB, VC3 South Devon, Torquay | Amelia Elizabeth Griffiths John Stevens Henslow | Warrington Museum William Wilson | 7/1852 | MANCH |
+ | Bupleurum rotundifolium | GB, Lancashire, Lancashire | John Stevens Henslow | Warrington Museum William Wilson | 23/7/1825 to 11/9/1871 | MANCH |