| Oenanthe fistulosa | IE, VCH23 Westmeath, Lough Ennell | Harry Corbyn Levinge | Harry Corbyn Levinge | 6/8/1891 | K |
| Pilosella aurantiaca | IE, Galway, Mount Bellow | Harry Corbyn Levinge | Harry Corbyn Levinge M Bayly | 19/7/1894 | SHYB |
| Pilosella aurantiaca | IE, VCH17 North-east Galway, Mount Bellew | M Bayly | Harry Corbyn Levinge | 19/7/1894 | ABS |
| Potamogeton friesii | IE, VCH23 Westmeath, Lough Derravaragh | Harry Corbyn Levinge | | 24/7/1895 | BIRM |
| Potamogeton lucens | IE, VCH23 Westmeath, Lough Derravaragh | Harry Corbyn Levinge | | 9/8/1892 | MANCH |
| Potentilla fruticosa | IE, VCH9 Co. Clare, Ballyvaughan | Harry Corbyn Levinge | Dublin Museum Irish National Herbarium Glasnevin Dublin Harry Corbyn Levinge | 17/5/1892 | GALW |
| Pyrola rotundifolia | IE, Loughanstown | Harry Corbyn Levinge James Groves | Allan Octavian Hume | 14/8/1892 | SLBI |
| Ranunculus trichophyllus | IE, VCH23 Westmeath, Knock Drui, Co. West Meath | Harry Corbyn Levinge | | 10/7/1893 | SHYB |
| Ranunculus trichophyllus | IE, VCH23 Westmeath, Knockdrin | Harry Corbyn Levinge | Harry Corbyn Levinge | 2/6/1895 | SHYB |
| Rosa villosa | IE, VCH23 Westmeath, Knock Ross | Harry Corbyn Levinge | Irish National Herbarium Glasnevin Dublin Science & Art Museum Dublin Harry Corbyn Levinge | 9/9/1892 | GALW |
| Rubus macrophyllus var. schlechtendalii | IE, VCH23 Westmeath, Knock | Harry Corbyn Levinge | | 28/8/1895 | ABS |
| Rubus rubristylus | IE, VCH23 Westmeath, Crooked Wood | Harry Corbyn Levinge | Harry Corbyn Levinge | 6/8/1895 | ABS |
| Rubus rubristylus | IE, VCH23 Westmeath, Crooked Wood | Harry Corbyn Levinge | | 6/8/1895 | SLBI |
| Salix pentandra | IE, VCH23 Westmeath, Bog of Lynn | Harry Corbyn Levinge | Harry Corbyn Levinge | 14/6/1895 | SHYB |
| Saxifraga rosacea | IE, VCH9 Co. Clare, Black Head | Harry Corbyn Levinge | Croydon Natural History and Scientific Society Henry Franklin Parsons | 19/5/1892 | SLBI |
| Scrophularia auriculata | IE, VCH23 Westmeath, Multyfarnham,Donore | Harry Corbyn Levinge | Harry Corbyn Levinge | 13/9/1895 | SLBI |
| Scutellaria galericulata | GB, VC49 Caernarvonshire, Criccieth | Harry Corbyn Levinge | | 8/1854 | K |
| Sesleria caerulea | IE, VCH15 South-east Galway, Castle Taylor | Harry Corbyn Levinge | | 16/5/1894 | ABS |
| Silene latifolia subsp. alba | IE, VCH21 Co. Dublin, Portmarnock | Harry Corbyn Levinge | Dublin Museum Irish National Herbarium Glasnevin Dublin | 12/7/1890 | GALW |
| Sium latifolium | IE, VCH16 West Galway, Portumna | Harry Corbyn Levinge | Dublin Museum | 20/8/1892 | GALW |
| Sium latifolium | IE, VCH15 South-east Galway, Portumna | Harry Corbyn Levinge | Harry Corbyn Levinge | 20/8/1892 | GALW |
| Stellaria palustris | IE, VCH23 Westmeath, River Brosna | Harry Corbyn Levinge | | 6/8/1891 | K |
| Stellaria palustris | IE, VCH23 Westmeath, Lough Ennell | Harry Corbyn Levinge | | 14/8/1891 | K |
| Stellaria palustris | IE, VCH23 Westmeath, Lough Ennell | Harry Corbyn Levinge | National Museum Ireland Harry Corbyn Levinge Robert Lloyd Praeger | 30/7/1892 | GALW |
| Stellaria palustris | IE, VCH23 Westmeath, Lough Ennell | Harry Corbyn Levinge | Science & Art Museum Dublin Harry Corbyn Levinge | 6/8/1891 | GALW |
| Teucrium scordium | IE, VCH15 South-east Galway, Lough Derg | Harry Corbyn Levinge | Harry Corbyn Levinge | 8/1892 | GALW |
+ | Utricularia intermedia | IE, VCH16 West Galway, Connemara | Harry Corbyn Levinge | | 17/9/1891 | MANCH |
| Veronica montana | IE, VCH23 Westmeath, Knockdrin | Harry Corbyn Levinge | Harry Corbyn Levinge | 4/1890 | K |
| Zannichellia palustris | GB, VC28 West Norfolk, Hunstanton | Henry Collett | Harry Corbyn Levinge | 9/1894 | ABS |
| Allium ampeloprasum | IE, VCH16 West Galway, Roundstone | B King | Botanical Exchange Club of The British Isles Augustin Ley Harry Corbyn Levinge | 7/1892 8/1892 | BIRM |
| Allium ampeloprasum | IE, VCH16 West Galway, Connemara,Roundstone Cultivated | Harry Corbyn Levinge | Botanical Exchange Club of The British Isles Augustin Ley Harry Corbyn Levinge | 8/1894 | BIRM |
| Allium ampeloprasum | IE, VCH16 West Galway, Roundstone | Harry Corbyn Levinge | Augustin Ley Harry Corbyn Levinge | 15/9/1891 | BIRM |
| Carex appropinquata | IE, VCH23 Westmeath, Bog of Lynn | Harry Corbyn Levinge | Botanical Exchange Club of The British Isles Augustin Ley Harry Corbyn Levinge | 14/6/1895 | BIRM |
| Carex dioica | IE, VCH23 Westmeath, Donore | Harry Corbyn Levinge | Botanical Exchange Club of The British Isles Augustin Ley Harry Corbyn Levinge | 28/5/1895 | BIRM |
| Carex hostiana | IE, VCH23 Westmeath, Knock Drui, Co. West Meath | Harry Corbyn Levinge | Botanical Exchange Club of The British Isles Augustin Ley Harry Corbyn Levinge | 3/7/1895 | BIRM |
| Cerastium arvense | IE, VCH9 Co. Clare, Poulsallagh | Harry Corbyn Levinge | Botanical Exchange Club of The British Isles Augustin Ley | 19/5/1892 | BIRM |
| Ceterach officinarum | IE, VCH9 Co. Clare, Ballyvaughan | Harry Corbyn Levinge | Botanical Exchange Club of The British Isles Augustin Ley Harry Corbyn Levinge | 19/5/1892 | BIRM |
| Cirsium dissectum | IE, VCH23 Westmeath, Westmeath | Harry Corbyn Levinge | Botanical Exchange Club of The British Isles Augustin Ley Harry Corbyn Levinge | 13/7/1894 | BIRM |
| Cirsium dissectum | IE, VCH23 Westmeath, Lough Owel | Harry Corbyn Levinge | Botanical Exchange Club of The British Isles Augustin Ley Harry Corbyn Levinge | 13/7/1894 | BIRM |
| Dryas octopetala | IE, VCH15 South-east Galway, Castle Taylor | Harry Corbyn Levinge | Botanical Exchange Club of The British Isles Augustin Ley Harry Corbyn Levinge | 16/5/1892 | BIRM |