| Potamogeton gramineus | GB, VC56 Nottinghamshire, Everton Carr | Cecil Ivry Sandwith Noel Yvri Sandwith | Harold Stuart Thompson Arthur Bennett | 30/8/1918 | BIRM |
| Carex nigra | GB, VC109 Caithness, Wick River | Grant J Grant | Watson Botanical Exchange Club Arthur Bennett Harold Stuart Thompson | 19/7/1897 | BIRM |
| Potamogeton gramineus | IE, VCH25 Co. Roscommon, River Suck | Harry Corbyn Levinge | Watson Botanical Exchange Club Arthur Bennett Harold Stuart Thompson | 26/7/1891 | BIRM |
+ | Corynephorus canescens | GB, VC27 East Norfolk, Great Yarmouth,North Denes | Arthur Bennett | | 7/1877 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | GB, VC17 Surrey, Brookwood | Ernest Straker | Arthur Bennett William Hadden Beeby | 7/1883 | SLBI |
| Vicia lathyroides | GB, VC17 Surrey, Shalford GB, VC21 Middlesex, Colney Hatch | Ernest Straker | Croydon Natural History and Scientific Society Arthur Bennett | 16/5/1885 16/5/1886 | SLBI |
| Potamogeton polygonifolius | GB, VC46 Cardiganshire, Llyn-y-Gorlan | Ernest Straker | Arthur Bennett | 26/8/1881 | E |
| Achillea millefolium | GB, VC112 Shetland, Fair Isle | Ernest Straker | George Stephen West Arthur Bennett | 7/1894 | BIRM |
| Potamogeton trichoides x crispus = P. x bennettii | GB, VC86 Stirlingshire, Grangemouth | John Stirling Stirling Robert Kidston | Allan Octavian Hume Arthur Bennett John Stirling Stirling | 24/8/1894 | SLBI |
| Carex laevigata | GB, VC86,VC99, Rowardennan | John Stirling Stirling Robert Kidston | Arthur Bennett Robert Kidston | 7/7/1890 | E |
| Caltha palustris var. radicans | GB, VC17 Surrey, Kew | Arthur Bennett Gilbert A C Stewart | William Hadden Beeby | | SLBI |
| Ruppia rostellata | GB, VC111 Orkney, Deerness | Magnus Spence | Allan Octavian Hume Arthur Bennett | 9/1909 | SLBI |
| Erophila verna | GB, VC34 West Gloucestershire, Tidenham Chase | William Andrew Shoolbred | Arthur Bennett William Hunt Painter | 5/3/1896 to 4/4/1896 | ABS |
| Gentianella campestris | GB, VC110 Outer Hebrides, Benbecula | William Andrew Shoolbred | William Hadden Beeby Arthur Bennett | 29/7/1894 | SLBI |
| Seseli libanotis | GB, VC29 Cambridgeshire, Cherry Hinton | Arthur Bennett J Bennett | Watson Botanical Exchange Club William Robert Sherrin | 5/8/1907 | SLBI |
| Carex aquatilis x nigra = C. x hibernica | IE, VCH1 South Kerry, Kenmare | Reginald Wiliam Scully | Allan Octavian Hume Reginald Wiliam Scully Arthur Bennett | 5/6/1889 | SLBI |
| Potamogeton gramineus | IE, VCH2 North Kerry, Killarney,Lower Lake | Reginald Wiliam Scully | Arthur Bennett | 7/1889 | E |
| Potamogeton gramineus | IE, VCH2 North Kerry, Killarney,Lower Lake | Reginald Wiliam Scully | Arthur Bennett | 7/1889 | E |
| Potamogeton polygonifolius | IE, Kerry, Beaufort Bridge | Reginald Wiliam Scully | Arthur Bennett Reginald Wiliam Scully | 27/7/1889 | E |
| Potamogeton polygonifolius | IE, Kerry, Killarney | Reginald Wiliam Scully | Botanical Exchange Club of The British Isles Arthur Bennett Reginald Wiliam Scully | 8/1888 | MANCH |
| Carex hirta | GB, VC1 West Cornwall | James Cunnack | Arthur Bennett Charles Edgar Salmon | 1883 | BM |
| Carex hirta | GB, VC1 West Cornwall, Newquay | Chambre Corker Vigurs | Arthur Bennett Charles Edgar Salmon | 7/1901 | BM |
| Carex arenaria | GB, VC1 West Cornwall, Saint Marys | James Cunnack | Arthur Bennett Charles Edgar Salmon | 7/1878 18/6/1883 | BM |
| Carex hirta | GB, VC6 North Somerset, Charterhouse on Mendip | Arthur Bennett Harold Stuart Thompson | Charles Edgar Salmon | 24/6/1915 | BM |
| Carex lasiocarpa | GB, VC6 North Somerset, Sharpham Park | Thomas Clark | Arthur Bennett Charles Edgar Salmon Harold Stuart Thompson | 23/6/1859 | BM |
| Carex x helvola | GB, VC9 Dorset, Edmondsham Cultivated GB, VC92 South Aberdeenshire, Lochnagar | Edward Francis Linton | Watson Botanical Exchange Club Arthur Bennett Edward Francis Linton Charles Edgar Salmon | 26/6/1909 | BM |
| Carex lasiocarpa | GB, VC9 Dorset, Morden Decoy | Edward Francis Linton | Arthur Bennett Edward Francis Linton Charles Edgar Salmon | 14/6/1895 | BM |
| Carex otrubae x remota = C. x pseudoaxillaris | GB, VC9 Dorset, Studland | Edward Francis Linton | Arthur Bennett Charles Edgar Salmon Edward Francis Linton | 26/6/1889 | BM |
| Carex disticha | GB, VC11 South Hampshire, Brockenhurst | W Cross | Arthur Bennett Charles Edgar Salmon | 7/1899 | BM |
| Carex divisa | GB, VC11 South Hampshire, Hailing Island | Arthur Bennett | Arthur Bennett Charles Edgar Salmon | 5/1880 | BM |
| Carex otrubae x remota = C. x pseudoaxillaris | GB, VC11 South Hampshire, Hailing Island | Arthur Bennett | Arthur Bennett Charles Edgar Salmon | 5/1880 | BM |
| Carex canescens | GB, VC11 South Hampshire, New Forest | A B R | Arthur Bennett Charles Edgar Salmon | 9/1895 | BM |
| Carex divisa | GB, VC13 West Sussex, Bosham | Frederick Henry Arnold | Arthur Bennett Charles Edgar Salmon | 6/7/1878 | BM |
| Carex otrubae x remota = C. x pseudoaxillaris | GB, VC13 West Sussex, Coolham | Charles Edgar Salmon | Arthur Bennett Charles Edgar Salmon | 19/8/1910 | BM |
| Carex divisa | GB, VC13 West Sussex, Fishbourne | Frederick Henry Arnold | Arthur Bennett Charles Edgar Salmon | 4/7/1878 | BM |
| Carex paniculata x remota = C. x boenninghauseniana | GB, VC13 West Sussex, Wey and Arun Canal near Billingshurst | William Hadden Beeby | Arthur Bennett Charles Edgar Salmon | 6/1880 | BM |
| Carex remota | GB, VC14 East Sussex, Horsted Keynes | William Whitwell | Arthur Bennett Charles Edgar Salmon | 4/8/1900 | BM |
| Ophrys sphegodes | GB, VC15 East Kent, Walmer | Arthur Bennett Jessie Bennett | Watson Botanical Exchange Club Charles Edgar Salmon | 6/1900 | ABS |
| Carex divisa | GB, VC16 West Kent, Greenhithe | Benjamin Daydon Jackson | Arthur Bennett Benjamin Daydon Jackson Charles Edgar Salmon | 5/6/1875 | BM |
| Carex divisa | GB, VC16 West Kent, Isle of Grain | Ernest Straker | Arthur Bennett Charles Edgar Salmon Ernest Straker | 4/7/1885 | BM |