| Calystegia soldanella | GB, VC75 Ayrshire, Ayr | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett | | SLBI |
| Draba norvegica | GB, VC88 Mid Perthshire, Ben Lawers | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | | SLBI |
| Stellaria graminea | GB, VC97 West Inverness-shire, Loch Nevis | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | | SLBI |
| Listera cordata | GB, England | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | | SLBI |
| Oxytropis uralensis | GB, Scotland | Roberts Leyland | John Joseph Bennett Robert Russell Hutchinson | | SLBI |
| Draba aizoides | GB, Wales | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | | SLBI |
| Galium boreale | GB, VC70 Cumberland, Derwent Water | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | to 1830 | SLBI |
| Actaea spicata | GB, VC63 South-west Yorkshire, Halifax | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | 1822 | SLBI |
| Actaea spicata | GB, Yorkshire | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | 6/1822 | SLBI |
| Drosera anglica | GB, VC59 South Lancashire, Littleborough,Blackstone Edge | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett | 7/1826 | SLBI |
| Drosera anglica | GB, VC59 South Lancashire, Littleborough,Blackstone Edge | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett | 7/1826 | SLBI |
| Stachys sylvatica x palustris = S. x ambigua | GB, VC59 South Lancashire, Prestwich | Roberts Leyland | Richmond Museum Charles Bailey James Ward | 7/1829 | MANCH |
| Alchemilla xanthochlora | GB, VC63 South-west Yorkshire, Halifax | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | 1830 | SLBI |
| Convallaria majalis | GB, VC63 South-west Yorkshire, Halifax | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | 1830 | SLBI |
| Myrrhis odorata | GB, VC63 South-west Yorkshire, Ripponden | Roberts Leyland | Croydon Natural History and Scientific Society I J B(ennett)? Robert Russell Hutchinson | 1830 | SLBI |
| Trollius europaeus | GB, VC63 South-west Yorkshire, Rishworth | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | 1830 | SLBI |
| Meum athamanticum | GB, VC63 South-west Yorkshire, Rishworth | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | 1830 | SLBI |
| Crepis paludosa | GB, VC63 South-west Yorkshire, Shibden Dale | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | 1830 | SLBI |
| Euphorbia portlandica | GB, VC71 Isle of Man, Isle of Man | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | 1830 | SLBI |
+ | Minuartia verna | GB, VC64 Mid-west Yorkshire, Settle | Roberts Leyland | John Bland Wood | 5/1831 | MANCH |
| Galanthus nivalis | GB, VC63 South-west Yorkshire, Cromwell bottom | Roberts Leyland | Harvey Mantua And Montferrat | 4/4/1836 | BON |
+ | Silene conica | GB, VC15 East Kent, Dover | William Alexander Stables | Charles Bailey Roberts Leyland William Lowndes Notcutt King | 5/1836 | MANCH |
| Pyrola minor | GB, VC63 South-west Yorkshire, Halifax | Roberts Leyland | | 1837 | SLBI |
| Trollius europaeus | GB, VC63 South-west Yorkshire, Halifax | | Roberts Leyland | 6/1837 | SLBI |
+ | Habenaria albida | GB, VC59 South Lancashire, Walsden | Roberts Leyland | John Bland Wood | 7/1837 | MANCH |
+ | Artemisia campestris | GB, VC26 West Suffolk, Thetford | Roberts Leyland | Richmond Museum Charles Bailey James Ward | 9/1837 | MANCH |
| Veronica verna | GB, Suffolk | Roberts Leyland William Strong Hore | John Ralfs | 1838 | SLBI |
+ | Draba aizoides | GB, VC41 Glamorganshire, Pennard Castle | John Wheeley Gough Gutch | Warrington Museum Roberts Leyland William Wilson | 1839 | MANCH |
+ | Polystichum lonchitis | GB, VC88 Mid Perthshire, Ben Lawers | James McNab | John Bland Wood Roberts Leyland | 1839 | MANCH |
+ | Polystichum lonchitis | GB, Scotland | James McNab | John Bland Wood Roberts Leyland | 1839 | MANCH |
+ | Polystichum lonchitis | GB, VC64 Mid-west Yorkshire, Settle,Attermine Scar | Gibson Roberts Leyland | Gibson John Bland Wood Roberts Leyland | 8/1839 | MANCH |
| Veronica triphyllos | GB, Suffolk | Blake Roberts Leyland | John Ralfs | 1840 | SLBI |
| Centunculus minimus | GB, VC58 Cheshire | Roberts Leyland | Croydon Natural History and Scientific Society John Joseph Bennett Robert Russell Hutchinson | 1840 to 1846 | SLBI |
| Draba aizoides | GB, VC41 Glamorganshire, Pennard Castle | John Wheeley Gough Gutch | Augustin Ley Charles Bailey John Hardy Roberts Leyland | 3/1840 | BIRM |
+ | Meum athamanticum | GB, VC59 South Lancashire, Boothwood | | John Bland Wood Roberts Leyland | 6/1840 | MANCH |
+ | Astragalus danicus | GB, VC63,VC64, Leeds dist,Lime Hills | John Bland Wood | Roberts Leyland | 6/1840 | MANCH |
+ | Habenaria albida | GB, VC57 Derbyshire, Buxton | Roberts Leyland | John Bland Wood | 10/6/1840 | MANCH |
| Polystichum setiferum | GB, VC63 South-west Yorkshire, Halifax | Roberts Leyland | | 8/1840 | BON |
+ | Minuartia verna | GB, VC49 Caernarvonshire, Twll Du | Roberts Leyland | John Bland Wood | 15/8/1840 | MANCH |
+ | Saxifraga hirculus | GB, VC65 North-west Yorkshire, Barnard Castle,Cotherstone | Roberts Leyland | Warrington Museum William Wilson | 15/8/1840 | MANCH |
+ | Saxifraga hirculus | GB, VC65,VC66, Durham,Teesdale,Cotherstone | Roberts Leyland | Charles Bailey William Lowndes Notcutt | 15/8/1840 | MANCH |
+ | Saxifraga hirculus | GB, VC65,VC66, Durham,Teesdale,Cotherstone | | John Bland Wood Roberts Leyland | 15/8/1840 | MANCH |
+ | Habenaria albida | GB, VC64 Mid-west Yorkshire, Settle | Roberts Leyland | John Bland Wood | 7/1841 | MANCH |
+ | Moneses uniflora | GB, VC88 Mid Perthshire, Scone | Roberts Leyland | George Crozier William Wilson | 1842 | MANCH |
+ | Minuartia verna | GB, VC57 Derbyshire, Milltown | | George Crozier Roberts Leyland | 8/1846 | MANCH |
+ | Saxifraga hirculus | GB, VC65 North-west Yorkshire, Teesdale,Baldersdale | John Bland Wood | Roberts Leyland | 4/1882 | MANCH |
+ | Blysmus compressus | GB, VC64 Mid-west Yorkshire, Malham Cove | Roberts Leyland | George Crozier Roberts Leyland | 8/8/1946 | MANCH |
+ | Saxifraga hirculus | GB, VC65,VC66, Durham,Teesdale,Cotherstone | Roberts Leyland | George Crozier | 15/8/1984 | MANCH |