| Raphanus raphanistrum subsp. maritimus | GB, VC113 Channel Islands, Jersey, Saint Helier | Louis Arsene | Isaac A Helsby | 1/7/1928 | SLBI |
| Raphanus raphanistrum subsp. maritimus | GB, VC113 Channel Islands, Jersey, Saint Heliers | Louis Arsene | Botanical Society & Exchange Club of The British Isles Isaac A Helsby | 1/7/1928 | SLBI |
| Raphanus raphanistrum subsp. maritimus | GB, VC113 Channel Islands, Jersey, Saint Heliers | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 1/7/1928 | SLBI |
| Raphanus raphanistrum subsp. maritimus | GB, VC113 Channel Islands, Jersey, Saint Heliers | Louis Arsene | Job Edward Lousley Louis Arsene | 1/7/1928 | SLBI |
| Raphanus raphanistrum subsp. maritimus | GB, VC113 Channel Islands, Jersey, Saint Heliers | Louis Arsene | Isaac A Helsby George Claridge Druce | 1/7/1928 | SLBI |
| Gnaphalium luteoalbum | GB, VC113 Channel Islands, Jersey, Saint Ouen's | Louis Arsene | Isaac A Helsby | 3/7/1928 | 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 |
| Rosa spinosissima | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Botanical Exchange Club of The British Isles Louis Arsene | 10/7/1928 | 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 |
| Sibthorpia europaea | GB, VC113 Channel Islands, Saint Brelade, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 21/7/1928 | SLBI |
| Sibthorpia europaea | GB, VC113 Channel Islands, Saint Brelade, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Louis Arsene | 21/7/1928 | K |
| Sibthorpia europaea | GB, VC113 Channel Islands, Saint Brelade, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Charles Edward Britton Louis Arsene | 21/7/1928 | K |
| 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 |
| Polycarpon tetraphyllum | GB, VC113 Channel Islands, Jersey, Grosnez | Louis Arsene | Botanical Exchange Club of The British Isles | 8/8/1928 | 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 |
| Oxalis tetraphylla | GB, VC113 Channel Islands, Jersey, La Haule | Louis Arsene | Orvees Botanical Society Isaac A Helsby | 10/9/1928 | SLBI |
| Erigeron | GB, VC113 Channel Islands, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Richard Barker Ullman Patrick Martin Hall | 1929 | 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 |
| Carex muricata | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Society & Exchange Club of The British Isles | 1/6/1929 | E |
| Carex muricata | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles | 1/6/1929 | BM |
| Carex muricata | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Louis Arsene Patrick Martin Hall | 1/6/1929 | BM |
| Carex muricata | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Eric Frederic Drabble Hilda Lake Drabble Louis Arsene | 1/6/1929 | BM |
| 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 |
+ | Cyperus longus | GB, VC113 Channel Islands, Jersey, Saint Ouen's Bay | Louis Arsene | Botanical Society & Exchange Club of The British Isles Louis Arsene | 8/8/1929 | MANCH |
| 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 |
| Scilla autumnalis | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Louis Arsene | 8/8/1929 | 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 |
| Lotus angustissimus | GB, Cornwall, Cornwall Cultivated | Louis Arsene | Isaac A Helsby | 1/7/1930 | SLBI |
+ | Lotus angustissimus | GB, VC113 Channel Islands, Saint Lawrence's Valley, Jersey | Louis Arsene | Botanical Society & Exchange Club of The British Isles | 1/7/1930 | MANCH |
+ | Lotus angustissimus | GB, VC113 Channel Islands, Saint Lawrence's Valley, Jersey | Louis Arsene | Botanical Society & Exchange Club of The British Isles | 1/7/1930 | MANCH |
| 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 |
| 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 |
| Muehlenbeckia complexa | GB, VC113 Channel Islands, Jersey, Saint Saviour | Louis Arsene | Isaac A Helsby George Claridge Druce | 11/9/1930 | SLBI |
| Veronica filiformis | GB, VC113 Channel Islands, Jersey, Saint Saviour | Louis Arsene | Société française pour l'échange des plantes vasculaires | 10/4/1931 | K |
| Orchis laxiflora | GB, VC113 Channel Islands, Saint Ouen's Pond | Louis Arsene | Patrick Martin Hall Richard Barker Ullman | 27/5/1932 | SLBI |
| Carex divulsa | GB, VC113 Channel Islands, Jersey St Sauveur | Louis Arsene | Sociêté Cénomane d'Exsiccata F Guiol | 29/6/1932 | BM |
| Plantago maritima | GB, VC113 Channel Islands, Jersey | Louis Arsene | Horti Botanici Bruxellensis Société française pour l'échange des plantes vasculaires | 28/7/1948 | K |