| Juncus inflexus x effusus = J. x diffusus | GB, VC58 Cheshire, Hatchmere | W Horton-Smith | | 2/7/1919 | MANCH |
+ | Valerianella dentata | GB, VC50 Denbighshire, Llangollen Cultivated | W Horton-Smith | W Horton-Smith | 29/6/1919 | MANCH |
+ | Valerianella dentata | GB, VC50 Denbighshire, Llangollen Cultivated | W Horton-Smith | W Horton-Smith | 29/6/1919 | MANCH |
+ | Hyoscyamus niger | GB, VC58 Cheshire, Northwich (N of),Barnton | Giles Owen | W Horton-Smith | 15/6/1919 | MANCH |
+ | Saxifraga hypnoides | GB, VC57 Derbyshire, Miller's dale [Millersdale] | W Horton-Smith | | 15/6/1919 | MANCH |
+ | Filago vulgaris | GB, VC2 East Cornwall, Torquay,Whatcombe | Giles Owen | W Horton-Smith | 9/6/1919 | MANCH |
| Callitriche stagnalis | GB, VC58 Cheshire, Neston | W Horton-Smith | | 2/6/1919 | MANCH |
| Salix purpurea x repens = S. x doniana | GB, VC58 Cheshire, Little Budworth Cultivated | W Horton-Smith | | 27/5/1919 | MANCH |
+ | Minuartia verna | GB, VC51 Flintshire, North Hendre | W Horton-Smith | W Horton-Smith | 18/5/1919 | MANCH |
| Ranunculus acris | GB, VC58 Cheshire, Marton | W Horton-Smith | | 25/10/1918 | MANCH |
+ | Euphrasia arctica x nemorosa | GB, VC58 Cheshire, Banks and fields on dry soil. ?Ravebrig. Edinburgh, . ? | W Horton-Smith | W Horton-Smith | 7/9/1918 | MANCH |
+ | Chrysanthemum segetum | GB, VC58 Cheshire, Warrington | W Horton-Smith | W Horton-Smith | 3/9/1918 | MANCH |
| Achillea ptarmica | GB, VC58 Cheshire, Rostherne Mere | W Horton-Smith | | 23/8/1918 | MANCH |
+ | Peucedanum ostruthium | GB, VC58 Cheshire, Northwich,Witton Brook Fields | W Horton-Smith | W Horton-Smith | 14/8/1918 | MANCH |
+ | Peucedanum ostruthium | GB, VC58 Cheshire, Northwich,Witton Brook Fields | W Horton-Smith | W Horton-Smith | 14/8/1918 | MANCH |
+ | Hydrocharis morsus-ranae | GB, VC58 Cheshire, Witton | W Horton-Smith | Schill W Horton-Smith | 8/1918 | MANCH |
+ | Hydrocharis morsus-ranae | GB, VC58 Cheshire, Witton | W Horton-Smith | W Horton-Smith | 8/1918 | MANCH |
| Scutellaria galericulata x minor = S. x hybrida | GB, VC58 Cheshire, Hatchmere | W Horton-Smith | | 8/1918 | MANCH |
+ | Spiraea salicifolia x douglasii = S. x pseudosalicifolia | GB, VC58 Cheshire, Northwich,Hartford | W Horton-Smith | W Horton-Smith | 26/7/1918 | MANCH |
| Tilia platyphyllos x cordata = T. x europaea | GB, VC58 Cheshire, Winnington | W Horton-Smith | | 22/7/1918 | MANCH |
| Aconitum napellus | GB, VC58 Cheshire, Little Budworth | W Horton-Smith | Manchester Museum | 17/7/1918 | MANCH |
| Potentilla anglica x reptans = P. x mixta | GB, VC58 Cheshire, Whitley | W Horton-Smith | | 10/7/1918 | MANCH |
+ | Chrysanthemum segetum | GB, VC58 Cheshire | W Horton-Smith | | 7/1918 | MANCH |
| Eriophorum angustifolium | GB, VC58 Cheshire, Hatchmere | W Horton-Smith | | 5/6/1918 | MANCH |
| Tilia platyphyllos x cordata = T. x europaea | GB, VC58 Cheshire, Winnington | W Horton-Smith | | 1/6/1918 | MANCH |
| Caltha palustris var. guerangerii | GB, VC58 Cheshire, Whitley Reed | W Horton-Smith | | 29/5/1918 | MANCH |
| Caltha palustris var. guerangerii | GB, VC59 South Lancashire, Simm's Cross | W Horton-Smith | | 15/5/1918 | MANCH |
| Ranunculus acris | GB, VC58 Cheshire, Bartington | W Horton-Smith | | 15/5/1918 | MANCH |
| Clematis vitalba | GB, VC50 Denbighshire, Bowling Bank | W Horton-Smith | | 26/8/1917 | MANCH |
| Rorippa palustris | GB, VC50 Denbighshire, Bowling Bank | W Horton-Smith | | 26/8/1917 | MANCH |
| Potamogeton crispus | GB, VC58 Cheshire, Dutton Locks | W Horton-Smith | W Horton-Smith | 22/8/1917 | MANCH |
| Potamogeton natans | GB, VC58 Cheshire, Dutton | W Horton-Smith | | 22/8/1917 | MANCH |
| Potamogeton pectinatus | GB, VC58 Cheshire, Dutton Locks | W Horton-Smith | W Horton-Smith | 22/8/1917 | MANCH |
| Potamogeton pectinatus | GB, VC58 Cheshire, Winnington | W Horton-Smith | | 22/8/1917 | MANCH |
| Potamogeton perfoliatus | GB, VC58 Cheshire, River Weaver | W Horton-Smith | | 22/8/1917 | MANCH |
| Potamogeton pusillus | GB, VC58 Cheshire, Pickerings o' the Boat | W Horton-Smith | W Horton-Smith | 22/8/1917 | MANCH |
+ | Berula erecta | GB, VC58 Cheshire, Pickmere | W Horton-Smith | W Horton-Smith | 15/8/1917 | MANCH |
| Potamogeton lucens | GB, VC58 Cheshire, Pickmere | W Horton-Smith | | 15/8/1917 | MANCH |
| Potamogeton lucens | GB, VC58 Cheshire, Pickmere | W Horton-Smith | | 15/8/1917 | MANCH |
| Potamogeton lucens | GB, VC58 Cheshire, Pickmere | W Horton-Smith | | 15/8/1917 | MANCH |