| Lythrum hyssopifolia | GB, VC113 Channel Islands, Jersey, Saint Catherine's Bay | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley | 1/8/1926 | SLBI |
| Malva parviflora | GB, VC113 Channel Islands, Jersey, Saint Helier | Louis Arsene | Isaac A Helsby | 15/7/1926 | SLBI |
| Matthiola sinuata | GB, VC113 Channel Islands, Jersey, Saint Ouen's Bay | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 5/6/1926 7/7/1926 | SLBI |
| 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 |
| Muehlenbeckia complexa | GB, VC113 Channel Islands, Jersey, Saint Saviour | Louis Arsene | Isaac A Helsby George Claridge Druce | 11/9/1930 | SLBI |
| Oenanthe pimpinelloides | GB, VC113 Channel Islands, Saint Saviour's Jersey | Louis Arsene | Isaac A Helsby | 11/10/1927 | SLBI |
| Orchis laxiflora | GB, VC113 Channel Islands, Saint Ouen's Pond | Louis Arsene | Patrick Martin Hall Richard Barker Ullman | 27/5/1932 | SLBI |
| Oxalis tetraphylla | GB, VC113 Channel Islands, Jersey, La Haule | Louis Arsene | Orvees Botanical Society Isaac A Helsby | 10/9/1928 | 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 |
| Petrorhagia prolifera | GB, VC113 Channel Islands, Les Quennevais | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 15/6/1926 7/7/1926 | SLBI |
| Polycarpon tetraphyllum | GB, VC113 Channel Islands, Jersey, Grosnez | Louis Arsene | Botanical Exchange Club of The British Isles | 8/8/1928 | SLBI |
| Polycarpon tetraphyllum | GB, VC113 Channel Islands, Saint Lawrence's Valley, Jersey | Louis Arsene | Isaac A Helsby | 8/6/1926 | SLBI |
| 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 |
| Polygonum maritimum | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Isaac A Helsby | 27/7/1926 | SLBI |
| Ranunculus paludosus | GB, VC113 Channel Islands, Jersey | Louis Arsene | Isaac A Helsby | 1/5/1925 | SLBI |
| 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 |
| Rosa spinosissima | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Botanical Exchange Club of The British Isles Louis Arsene | 10/7/1928 | SLBI |
| Scabiosa atropurpurea | GB, VC113 Channel Islands, L'Etacq | Louis Arsene | Isaac A Helsby | 26/6/1926 | 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 |
| Scrophularia scorodonia | GB, VC113 Channel Islands, Jersey | Louis Arsene | Watson Botanical Exchange Club Job Edward Lousley | 1/7/1926 | SLBI |
| Scrophularia scorodonia | GB, VC113 Channel Islands, Jersey, Saint Saviour | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley | 1/7/1926 | SLBI |
| Senecio cineraria | GB, VC113 Channel Islands, Jersey, St Aubin's | Ariste | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 18/6/1927 | SLBI |
| Senecio lanuginosus | GB, VC113 Channel Islands, Jersey, Quennevais | Louis Arsene | Isaac A Helsby | 4/4/1926 | SLBI |
| Senecio lanuginosus | GB, VC113 Channel Islands, Quenvais | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley | 4/4/1926 | SLBI |
| 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 |
| Silene conica | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 14/5/1928 | 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 |
| Silene gallica | GB, VC113 Channel Islands, Jersey,West Mount | Louis Arsene | Isaac A Helsby | 30/4/1925 | SLBI |
| Silene nutans subsp. dubia | GB, VC113 Channel Islands, Jersey, Saint Peters | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 18/5/1926 | SLBI |
| Spergularia media | GB, VC113 Channel Islands, Jersey, Saint Ouen's | Louis Arsene | Isaac A Helsby | 20/7/1926 | 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 |
| Trifolium strictum | GB, VC113 Channel Islands, Jersey | Louis Arsene | Isaac A Helsby | 18/5/1926 | SLBI |
| Trifolium strictum | GB, VC113 Channel Islands, Jersey,La Moye | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley | 18/5/1926 | SLBI |
| Tuberaria guttata | GB, VC113 Channel Islands, Jersey,Beauport | Louis Arsene | Isaac A Helsby | 8/6/1926 | SLBI |
| Vicia cassubica | GB, VC113 Channel Islands, Jersey, Saint Peters | Louis Arsene | Isaac A Helsby | 15/7/1926 | SLBI |
| Vicia lutea | GB, VC113 Channel Islands, Saint Brelade, Jersey | Louis Arsene | Botanical Exchange Club of The British Isles Job Edward Lousley Louis Arsene | 20/6/1928 21/7/1928 | 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 |
| Viola nana | GB, VC113 Channel Islands, Saint Ouen's Bay, Jersey | Louis Arsene | Isaac A Helsby | 14/4/1928 | SLBI |