| Lotus angustissimus | GB, Cornwall, Cornwall Cultivated | Louis Arsene | Isaac A Helsby | 1/7/1930 | 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 |
+ | Silene nutans | GB, VC113 Channel Islands, Guernsey,Saint Peters Port | Louis Arsene | Botanical Society & Exchange Club of The British Isles | 18/5/1926 | MANCH |
| 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 |
| Erigeron | GB, VC113 Channel Islands, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Richard Barker Ullman Patrick Martin Hall | 1929 | 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 | Isaac A Helsby | 6/1928 | 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 |
| Parentucellia viscosa | GB, VC113 Channel Islands, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 15/7/1926 | SLBI |
| Plantago maritima | GB, VC113 Channel Islands, Jersey | Louis Arsene | Horti Botanici Bruxellensis Société française pour l'échange des plantes vasculaires | 28/7/1948 | K |
| Polygala vulgaris subsp. collina | GB, VC113 Channel Islands, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 5/4/1926 | SLBI |
| Ranunculus paludosus | GB, VC113 Channel Islands, Jersey | Louis Arsene | Isaac A Helsby | 1/5/1925 | SLBI |
| Scrophularia scorodonia | GB, VC113 Channel Islands, Jersey | Louis Arsene | Watson Botanical Exchange Club Job Edward Lousley | 1/7/1926 | SLBI |
| Trifolium strictum | GB, VC113 Channel Islands, Jersey | Louis Arsene | Isaac A Helsby | 18/5/1926 | SLBI |
| Vicia sativa | GB, VC113 Channel Islands, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 1/6/1928 | 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 |
| Carex divulsa | GB, VC113 Channel Islands, Jersey St Sauveur | Louis Arsene | Sociêté Cénomane d'Exsiccata F Guiol | 29/6/1932 | BM |
| Polycarpon tetraphyllum | GB, VC113 Channel Islands, Jersey, Grosnez | Louis Arsene | Botanical Exchange Club of The British Isles | 8/8/1928 | 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 |
| 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 |
| Oxalis tetraphylla | GB, VC113 Channel Islands, Jersey, La Haule | Louis Arsene | Orvees Botanical Society Isaac A Helsby | 10/9/1928 | 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 |
| Lamium galeobdolon subsp. montanum | GB, VC113 Channel Islands, Jersey, La Saline | Louis Arsene | Botanical Exchange Club of The British Isles Louis Arsene | 11/5/1929 | K |
| Montia fontana subsp. amporitana | GB, VC113 Channel Islands, Jersey, Ouaisne | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley | 29/3/1926 | SLBI |
| Eriophorum angustifolium | GB, VC113 Channel Islands, Jersey, Petit Port | Louis Arsene | Botanical Exchange Club of The British Isles Louis Arsene | 10/7/1926 | MANCH |
| 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 |
| Centaurium erythraea | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley | 21/6/1921 | 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 |
+ | Petrorhagia nanteuilii | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Botanical Society & Exchange Club of The British Isles | 7/7/1926 | MANCH |
| Rosa spinosissima | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Botanical Exchange Club of The British Isles Louis Arsene | 10/7/1928 | SLBI |
| Senecio lanuginosus | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Isaac A Helsby | 4/4/1926 | SLBI |
| Silene gallica | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 21/5/1926 | SLBI |
| Thesium | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 15/7/1926 | SLBI |
| Herniaria glabra | GB, VC113 Channel Islands, Jersey, Saint Aubins Bay | Louis Arsene | Isaac A Helsby | | SLBI |
| Sibthorpia europaea | GB, VC113 Channel Islands, Jersey, Saint Brelade's Bay | Louis Arsene | Botanical Exchange Club of The British Isles J Fraser Louis Arsene | 21/7/1928 | K |
| Juncus capitatus | GB, VC113 Channel Islands, Jersey, Saint Catherine's Bay | Louis Arsene | Isaac A Helsby | 10/5/1925 | SLBI |
+ | Juncus capitatus | GB, VC113 Channel Islands, Jersey, Saint Catherine's Bay | Louis Arsene | Botanical Society & Exchange Club of The British Isles | 7/5/1926 | MANCH |
| Lotus angustissimus | GB, VC113 Channel Islands, Jersey, Saint Catherine's Bay | Louis Arsene | Isaac A Helsby | 6/7/1925 | SLBI |