| Gnaphalium luteoalbum | GB, VC113 Channel Islands, Guernsey | Cecil Victor Boley Marquand | Cecil Victor Boley Marquand William Robert Sherrin | 9/1912 | SLBI |
| Lotus subbiflorus | GB, VC113 Channel Islands, Guernsey | Cecil Victor Boley Marquand | William Robert Sherrin | 8/1912 | SLBI |
| Ornithopus pinnatus | GB, VC113 Channel Islands, Guernsey | Cecil Victor Boley Marquand | William Robert Sherrin | 6/6/1909 | SLBI |
| Orobanche hederae | GB, VC113 Channel Islands, Guernsey | Cecil Victor Boley Marquand | Cecil Victor Boley Marquand William Robert Sherrin | 8/1912 | SLBI |
| Pilosella peleteriana | GB, VC113 Channel Islands, Guernsey | Cecil Victor Boley Marquand | Cecil Victor Boley Marquand William Robert Sherrin | 8/1913 | SLBI |
| Scilla autumnalis | GB, VC113 Channel Islands, Guernsey | Cecil Victor Boley Marquand | William Robert Sherrin | 8/1913 | SLBI |
| Trifolium suffocatum | GB, VC113 Channel Islands, Guernsey | Cecil Victor Boley Marquand | William Robert Sherrin | 8/1912 | SLBI |
| Viola nana | GB, VC113 Channel Islands, Guernsey | Cecil Victor Boley Marquand | Cecil Victor Boley Marquand William Robert Sherrin | 4/1913 | SLBI |
| Centaurium pulchellum | GB, VC113 Channel Islands, Guernsey, Cobo Bay | Cecil Victor Boley Marquand | Richard Barker Ullman | 13/9/1913 | SLBI |
| Cicendia filiformis | GB, VC113 Channel Islands, Guernsey, Fort Doyle | Cecil Victor Boley Marquand | Cecil Victor Boley Marquand William Robert Sherrin | 9/1912 | SLBI |
| Polycarpon tetraphyllum | GB, VC113 Channel Islands, Guernsey,Braye du Valle | Cecil Victor Boley Marquand | Cecil Victor Boley Marquand William Robert Sherrin | 9/1912 | SLBI |
| Callitriche truncata | GB, VC113 Channel Islands, Guernsey,Grande Mare | Cecil Victor Boley Marquand | | 21/4/1913 | K |
| Callitriche truncata | GB, VC113 Channel Islands, Guernsey,Grande Mare | Cecil Victor Boley Marquand | Botanical Exchange Club of The British Isles Albert Bruce Jackson | 9/1913 | K |
+ | Isoetes histrix | GB, VC113 Channel Islands, Guernsey,L'Ancresse Common | Cecil Victor Boley Marquand | Botanical Society & Exchange Club of The British Isles Cecil Victor Boley Marquand Charles Bailey | 8/1912 | MANCH |
+ | Romulea columnae | GB, VC113 Channel Islands, Guernsey,Moulin Huet Bay | | Cecil Victor Boley Marquand Charles Bailey | 4/1913 | MANCH |
| Hirschfeldia incana | GB, VC113 Channel Islands, Guernsey,Paradis | Cecil Victor Boley Marquand | Cecil Victor Boley Marquand William Robert Sherrin | 9/1912 | SLBI |
| Hirschfeldia incana | GB, VC113 Channel Islands, Guernsey,Paradis | Cecil Victor Boley Marquand | Douglas Montague Heath Frederick Robinson | 8/1915 | BIRM |
| Crassula tillaea | GB, VC113 Channel Islands, Guernsey,Petit Bot | | Cecil Victor Boley Marquand William Robert Sherrin | 4/1913 | SLBI |
| Lotus angustissimus | GB, VC113 Channel Islands, Guernsey,Petit Bot Bay | Cecil Victor Boley Marquand | Cecil Victor Boley Marquand William Robert Sherrin | 9/1912 | SLBI |
+ | Cynodon dactylon | GB, VC113 Channel Islands, Guernsey,Vazon Bay | Cecil Victor Boley Marquand | Botanical Society & Exchange Club of The British Isles Cecil Victor Boley Marquand Charles Bailey | 9/1913 | MANCH |
| Cicendia filiformis | GB, VC113 Channel Islands, L'Ancresse Common | Cecil Victor Boley Marquand | Cecil Victor Boley Marquand William Robert Sherrin | 8/1912 | SLBI |
| Herniaria glabra | GB, VC113 Channel Islands, Pleinmont, Guernsey | Cecil Victor Boley Marquand | William Robert Sherrin | 9/1913 | SLBI |
| Chenopodium chenopodioides | GB, VC113 Channel Islands, Vazon Bay, Guernsey | Cecil Victor Boley Marquand | Cecil Victor Boley Marquand | 8/1912 | SLBI |
| Orchis laxiflora | GB, VC113 Channel Islands, Vazon Bay, Guernsey | | Cecil Victor Boley Marquand William Robert Sherrin | 6/1913 | SLBI |
| Salvia marquandii | GB, VC113 Channel Islands, Vazon Bay, Guernsey | Cecil Victor Boley Marquand | Cecil Victor Boley Marquand William Robert Sherrin | 24/9/1909 | SLBI |
| Senecio vulgaris | GB, VC113 Channel Islands, Vazon Bay, Guernsey | Cecil Victor Boley Marquand | Cecil Victor Boley Marquand | 9/1912 | SLBI |