| Anthyllis maritima | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 20/6/1928 | SLBI |
| Armeria maritima | GB, VC113 Channel Islands, Jersey,La Moye | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 1/7/1928 | SLBI |
| Arum italicum | GB, VC113 Channel Islands, Jersey St Sauveur | Benard Ariste | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 29/5/1927 | SLBI |
| Atriplex | GB, VC113 Channel Islands, Jersey, Saint Helier | Louis Arsene | Botanical Exchange Club of The British Isles Richard Barker Ullman Patrick Martin Hall | 10/9/1928 | SLBI |
| Atriplex glabriuscula | GB, VC113 Channel Islands, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Richard Barker Ullman Patrick Martin Hall | 1/9/1929 | SLBI |
| Atropa belladonna | GB, VC113 Channel Islands, Jersey,St Saviour's | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 1/7/1930 | SLBI |
| Bupleurum baldense | GB, VC113 Channel Islands, Jersey, Saint Ouen's Bay | Louis Arsene | Isaac A Helsby | 12/7/1930 | SLBI |
| Bupleurum baldense | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 12/7/1930 | SLBI |
| Carex muricata subsp. pairae | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 1/6/1929 | SLBI |
| Carex muricata subsp. pairae | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Louis Arsene Richard Barker Ullman Patrick Martin Hall | 1/6/1929 | SLBI |
| Centaurea jacea | GB, VC113 Channel Islands, Don Bridge, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 10/7/1927 | SLBI |
| Centaurea nigra x jacea = C. x moncktonii | GB, VC113 Channel Islands, Don Bridge, Jersey | Benard Ariste | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 10/7/1927 | SLBI |
| Centaurea paniculata | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Isaac A Helsby Louis Arsene | 26/7/1926 | SLBI |
| Centaurium erythraea | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley | 21/6/1921 | SLBI |
| Coincya monensis | GB, VC113 Channel Islands, Jersey,Corbiere | Louis Arsene | Isaac A Helsby | 6/6/1926 | SLBI |
| Cyperus longus | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 8/8/1929 | SLBI |
| Cyperus longus | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Richard Barker Ullman Patrick Martin Hall | 8/8/1929 | SLBI |
| Daucus maritimus | GB, VC113 Channel Islands, Jersey,La Moye | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 7/7/1928 | SLBI |
| Daucus maritimus | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley | 1/7/1928 | SLBI |
| Dianthus gallicus | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Isaac A Helsby | 10/7/1926 | SLBI |
| Dianthus gallicus | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Isaac A Helsby | 7/7/1925 | SLBI |
| Erigeron | GB, VC113 Channel Islands, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Richard Barker Ullman Patrick Martin Hall | 1929 | SLBI |
| Fumaria capreolata | GB, VC113 Channel Islands, Saint Saviour's, Guernsey | Louis Arsene | Isaac A Helsby | 16/7/1926 | SLBI |
| Geranium purpureum | GB, VC113 Channel Islands, Jersey, La Haule | Benard Ariste | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 15/5/1927 | SLBI |
| Gnaphalium luteoalbum | GB, VC113 Channel Islands, Jersey, Saint Ouen's | Louis Arsene | Isaac A Helsby | 3/7/1928 | SLBI |
| Herniaria glabra | GB, VC113 Channel Islands, Jersey, Saint Aubins Bay | Louis Arsene | Isaac A Helsby | | SLBI |
| Hirschfeldia incana | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Louis Arsene | 15/7/1921 | SLBI |
| Hirschfeldia incana | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Job Edward Lousley | 15/7/1921 | SLBI |
| Inula crithmoides | GB, VC113 Channel Islands, Jersey | Louis Arsene | Isaac A Helsby | 6/1928 | SLBI |
| Inula crithmoides | GB, VC113 Channel Islands, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley | 1/1/1928 | SLBI |
| Inula crithmoides | GB, VC113 Channel Islands, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Richard Barker Ullman Patrick Martin Hall | 1/8/1928 | SLBI |
| Jasione montana | GB, VC113 Channel Islands, Jersey, L'Etac | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 15/6/1926 | SLBI |
| Juncus capitatus | GB, VC113 Channel Islands, Jersey, Saint Catherine's Bay | Louis Arsene | Isaac A Helsby | 10/5/1925 | SLBI |
| Lamiastrum galeobdolon | GB, VC113 Channel Islands, Jersey, La Saline | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 11/5/1929 | SLBI |
| Lavatera cretica | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 15/7/1926 | SLBI |
| Lotus angustissimus | GB, Cornwall, Cornwall Cultivated | Louis Arsene | Isaac A Helsby | 1/7/1930 | SLBI |
| Lotus angustissimus | GB, VC113 Channel Islands, Jersey, Saint Catherine's Bay | Louis Arsene | Isaac A Helsby | 6/7/1925 | SLBI |
| Lotus angustissimus | GB, VC113 Channel Islands, Saint Lawrence's Valley, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 1/7/1930 | SLBI |
| Lotus subbiflorus | GB, VC113 Channel Islands, Jersey, Saint Catherine's Bay | Louis Arsene | Isaac A Helsby | 6/7/1925 | SLBI |
| Ludwigia palustris | CA, Quebec, Laprairie | Louis Arsene | Job Edward Lousley Louis Arsene | 9/8/1927 | SLBI |