| Orobanche elatior | GB, VC11 South Hampshire, Winchester | J Comber | Watson Botanical Exchange Club William Robert Sherrin J Comber | | SLBI |
| Parentucellia viscosa | GB, VC58 Cheshire, Hoylake | J Comber | William Henry Wilkinson | 25/8/1877 | BIRM |
| Paris quadrifolia | GB, VC11 South Hampshire, Winchester | J Comber | Charles Bailey | 5/1877 | MANCH |
| Persicaria lapathifolia | GB, VC17 Surrey, Guildford | J Comber | Watson Botanical Exchange Club Job Edward Lousley | 9/1915 | SLBI |
| Persicaria lapathifolia | GB, VC17 Surrey, Guildford | J Comber | Watson Botanical Exchange Club William Robert Sherrin | 17/9/1915 | SLBI |
| Persicaria maculosa | GB, VC17 Surrey, Whitmoor Common | J Comber | Watson Botanical Exchange Club Harold Stuart Thompson | 9/1915 | BIRM |
| Persicaria maculosa | GB, VC17 Surrey, Whitmoor Common | J Comber | Watson Botanical Exchange Club William Robert Sherrin | 9/1915 | SLBI |
+ | Persicaria minor | GB, VC17 Surrey, Whitemoor | J Comber | Watson Botanical Exchange Club | 9/1915 | MANCH |
| Persicaria minor | GB, VC59 South Lancashire, Croft GB, VC59 South Lancashire, Middleton | J Comber | George Stephen West | 9/1876 | BIRM |
| Phyteuma orbiculare | GB, VC13 West Sussex, Lancing | J Comber | J Comber William Hunt Painter | 9/1877 | ABS |
| Phyteuma orbiculare | GB, VC17 Surrey, Merrow | J Comber | Hayward George Claridge Druce Joseph Edward Little | 7/1912 | MANCH |
| Plantago media var. monnieri | GB, VC17 Surrey, Albury | J Comber | Watson Botanical Exchange Club | 7/1916 | K |
| Plantago media | GB, VC17 Surrey, Albury Downs | J Comber | Watson Botanical Exchange Club Harold Stuart Thompson | 7/1916 | BIRM |
+ | Platanthera chlorantha | GB, VC11 South Hampshire, Crabbe Wood | J Comber | Charles Bailey | 6/1877 | MANCH |
| Polygonum | GB, VC7 North Wiltshire, Wanborough | J Comber | | 8/1916 | BIRM |
| Polygonum | GB, VC11 South Hampshire, Chilcomb | J Comber | | 9/1876 | BIRM |
| Polygonum | GB, VC70 Cumberland, Scale Hill | J Comber | J Comber | 8/1876 | BIRM |
| Polygonum arenastrum | GB, VC17 Surrey, Worplesdon | J Comber | Watson Botanical Exchange Club William Robert Sherrin | 17/9/1915 | SLBI |
| Polygonum aviculare | GB, VC59 South Lancashire, Middleton | J Comber | Augustin Ley | 8/1878 | BIRM |
| Polystichum setiferum | GB, VC70 Cumberland, Ravenglass | J Comber | George Stephen West | 8/1876 | BIRM |
| Ranunculus omiophyllus | GB, VC14 East Sussex, Copthorne | J Comber | Job Edward Lousley Richard Barker Ullman | 4/1912 | SLBI |
+ | Ranunculus omiophyllus x peltatus = R. x hiltonii | GB, VC14 East Sussex, Brighton | J Comber | Watson Botanical Exchange Club Charles Bailey | 4/1912 | MANCH |
| Ranunculus omiophyllus x peltatus = R. x hiltonii | GB, VC14 East Sussex, Copthorne | J Comber | Botanical Exchange Club of The British Isles | 4/1912 | SLBI |
| Ranunculus omiophyllus x tripartitus = R. x novae-forestae | GB, VC11 South Hampshire, Holmsley | J Comber | London Natural History Society Watson Botanical Exchange Club Edmund Browne Bishop | 6/1916 | SLBI |
| Ranunculus omiophyllus x tripartitus = R. x novae-forestae | GB, VC11 South Hampshire, Holmsley Station | J Comber | Watson Botanical Exchange Club William Robert Sherrin | 6/1916 | SLBI |
| Ranunculus peltatus | GB, VC14 East Sussex, Copthorne | J Comber | Richard Barker Ullman | 4/1912 | SLBI |
| Ranunculus tripartitus | GB, VC11 South Hampshire, Holmsley Station | J Comber | | 6/1916 | BIRM |
| Sagina nodosa | GB, VC69 Westmorland, Askam | Dennis Lumb | London Natural History Society Watson Botanical Exchange Club Charles Edgar Salmon Edmund Browne Bishop J Comber | 9/1912 | SLBI |
| Sanicula europaea | GB, VC11 South Hampshire, Winchester | J Comber | Charles Bailey | 4/1877 | MANCH |
| Schoenoplectus pungens | GB, VC113 Channel Islands, Jersey, Saint Ouens Pond | J Comber | Botanical Exchange Club of The British Isles John Ralfs | 8/1879 | SLBI |
| Seriphidium maritimum | GB, VC13 West Sussex, Shoreham | J Comber | Augustin Ley | 9/1878 | BIRM |
| Silene dichotoma | GB, VC17 Surrey, Guildford,Saint Martha's Hill | R M Kennedy | Watson Botanical Exchange Club Harold Stuart Thompson J Comber | 8/1915 | BIRM |
| Sisymbrium pannonicum | GB, VC59 South Lancashire, Crosby | J Comber | William Hunt Painter | 8/1878 | ABS |
| Sisymbrium pannonicum | GB, VC59 South Lancashire, Crosby | J Comber | Augustin Ley | 8/1878 | BIRM |
| Sonchus arvensis | GB, VC17 Surrey, Worplesdon | J Comber | Watson Botanical Exchange Club Harold Stuart Thompson | 8/1916 | BIRM |
| Spergularia media | GB, VC11 South Hampshire, Keyhaven | J Comber | Watson Botanical Exchange Club William Robert Sherrin | 8/1913 | SLBI |
| Symphytum officinale x asperum = S. x uplandicum | GB, VC17 Surrey, Bramley | J Comber | | | SLBI |
| Symphytum officinale x asperum = S. x uplandicum | GB, VC17 Surrey, Godalming | J Comber | Botanical Society & Exchange Club of The British Isles Charles Bailey | 5/1912 | MANCH |
| Thesium humifusum | GB, VC11 South Hampshire, Winchester | J Comber | Harold Stuart Thompson | 9/1877 | BIRM |
| Thesium humifusum | GB, VC11 South Hampshire, Winchester | J Comber | | 20/9/1877 | ABS |
| Thlaspi caerulescens | GB, VC49 Caernarvonshire, Llanrwst | J Comber | Watson Botanical Exchange Club Harold Stuart Thompson | 4/1878 | BIRM |
+ | Utricularia intermedia | GB, VC69 Westmorland, Coniston Lake | J Comber | Watson Botanical Exchange Club Charles Bailey | 8/1911 | MANCH |
| Utricularia minor | GB, VC69 Westmorland, Cark | J Comber | Richard Barker Ullman | 9/1912 | SLBI |
| Utricularia minor | GB, VC69 Westmorland, Haverthwaite | J Comber | Isaac A Helsby | 9/1912 | SLBI |
| Vicia sativa | GB, VC11 South Hampshire, Milford on Sea | J Comber | Watson Botanical Exchange Club William Robert Sherrin | 11/6/1913 | SLBI |
| Viola lactea | GB, VC11 South Hampshire, Barton Common | J Comber | Richard Spiers Standen | 11/6/1913 | SLBI |
| Zannichellia palustris | GB, VC11 South Hampshire, Keyhaven | J Comber | Watson Botanical Exchange Club William Robert Sherrin | 6/1913 | SLBI |