| Zannichellia palustris | GB, VC28 West Norfolk, Hunstanton | Henry Collett | Harry Corbyn Levinge | 9/1894 | ABS |
| Viola persicifolia | IE, VCH15 South-east Galway, Gort | Patrick Bernard O'Kelly | Dublin Museum Harry Corbyn Levinge | 19/6/1894 | GALW |
| Viola persicifolia | IE, VCH15 South-east Galway, Gort | Patrick Bernard O'Kelly | Harry Corbyn Levinge William Hunt Painter | 19/6/1894 | ABS |
| Viola persicifolia | IE, VCH15 South-east Galway, Gort | Patrick Bernard O'Kelly | Allan Octavian Hume Frederick Townsend Harry Corbyn Levinge | 19/6/1894 | SLBI |
| Viola persicifolia | IE, VCH16 West Galway, Newtown Gort | Patrick Bernard O'Kelly | Harold Stuart Thompson Harry Corbyn Levinge | 19/6/1894 | BIRM |
| Veronica scutellata | GB, VC49 Caernarvonshire, Criccieth | Harry Corbyn Levinge | James Sykes Gamble | 8/1884 | K |
| Veronica scutellata | IE, VCH9,VCH15, Garryland Wood | Patrick Bernard O'Kelly | Botanical Exchange Club of The British Isles Augustin Ley Harry Corbyn Levinge | 14/8/1893 | BIRM |
| Veronica montana | IE, VCH23 Westmeath, Knockdrin | Harry Corbyn Levinge | Harry Corbyn Levinge | 4/1890 | K |
| Vaccinium oxycoccos | IE, VCH23 Westmeath, Knockdrin | Harry Corbyn Levinge | Harry Corbyn Levinge William Hadden Beeby | 5/7/1891 | SLBI |
| Vaccinium oxycoccos | IE, VCH23 Westmeath, Quarry Bog | Harry Corbyn Levinge | Augustin Ley Harry Corbyn Levinge | 5/7/1891 | BIRM |
+ | Utricularia intermedia | IE, VCH16 West Galway, Connemara | Harry Corbyn Levinge | | 17/9/1891 | MANCH |
| Ulmus diversifolia | IE, Ambiguous locality (IE), Lismore Castle | Harry Corbyn Levinge | Augustin Ley | 8/1878 | BIRM |
| Thalictrum minus subsp. minus | IE, VCH9 Co. Clare, Black Head | Patrick Bernard O'Kelly | Botanical Exchange Club of The British Isles Watson Botanical Exchange Club Harry Corbyn Levinge | 12/7/1894 | ABS |
| Thalictrum minus subsp. minus | IE, VCH9 Co. Clare, Black Head | Patrick Bernard O'Kelly | Harry Corbyn Levinge William Hunt Painter | 23/6/1893 | ABS |
| Thalictrum minus | IE, VCH9 Co. Clare, Black Head | Patrick Bernard O'Kelly | Watson Botanical Exchange Club Harry Corbyn Levinge William Hunt Painter | 12/7/1894 | ABS |
| Thalictrum minus | IE, VCH9 Co. Clare, Black Head | Patrick Bernard O'Kelly | Harold Stuart Thompson Harry Corbyn Levinge | 23/6/1893 | BIRM |
| Teucrium scordium | IE, VCH15 South-east Galway, Lough Derg | Harry Corbyn Levinge | Harry Corbyn Levinge | 8/1892 | GALW |
| 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 |
| Stellaria palustris | IE, VCH23 Westmeath, River Brosna | Harry Corbyn Levinge | | 6/8/1891 | K |
| Sium latifolium | IE, VCH9 Co. Clare, Ennis | Patrick Bernard O'Kelly | Harry Corbyn Levinge Patrick Bernard O'Kelly | 12/8/1891 | K |
| Sium latifolium | IE, VCH9 Co. Clare, Ennis | Patrick Bernard O'Kelly | Harry Corbyn Levinge | 13/7/1891 | K |
| Sium latifolium | IE, VCH15 South-east Galway, Portumna | Harry Corbyn Levinge | Harry Corbyn Levinge | 20/8/1892 | GALW |
| Sium latifolium | IE, VCH16 West Galway, Portumna | Harry Corbyn Levinge | Dublin Museum | 20/8/1892 | GALW |
| Silene latifolia subsp. alba | IE, VCH21 Co. Dublin, Portmarnock | Harry Corbyn Levinge | Dublin Museum Irish National Herbarium Glasnevin Dublin | 12/7/1890 | GALW |
| Sesleria caerulea | IE, VCH15 South-east Galway, Castle Taylor | Harry Corbyn Levinge | | 16/5/1894 | ABS |
| Sesleria caerulea | IE, VCH15 South-east Galway, Castle Taylor | Harry Corbyn Levinge | Augustin Ley Harry Corbyn Levinge | 16/5/1892 | BIRM |
| Scutellaria minor | GB, VC49 Caernarvonshire, Criccieth | Harry Corbyn Levinge | James Sykes Gamble | 8/1884 | K |
| Scutellaria galericulata | GB, VC49 Caernarvonshire, Criccieth | Harry Corbyn Levinge | | 8/1854 | K |
| Scrophularia auriculata | IE, VCH23 Westmeath, Donore | Harry Corbyn Levinge | Harry Corbyn Levinge William Hunt Painter | 13/9/1895 | ABS |
| Scrophularia auriculata | IE, VCH23 Westmeath, Lough Derravaragh | Harry Corbyn Levinge | Botanical Exchange Club of The British Isles Augustin Ley | 13/9/1895 | BIRM |
| Scrophularia auriculata | IE, VCH23 Westmeath, Multyfarnham,Donore | Harry Corbyn Levinge | Harry Corbyn Levinge | 13/9/1895 | SLBI |
| Saxifraga rosacea | IE, VCH9 Co. Clare, Black Head | Harry Corbyn Levinge | Croydon Natural History and Scientific Society Henry Franklin Parsons | 19/5/1892 | SLBI |
| Saxifraga rosacea | IE, VCH9 Co. Clare, Black Head | Harry Corbyn Levinge | Botanical Exchange Club of The British Isles Augustin Ley | 19/5/1892 | BIRM |
| Saxifraga rosacea | IE, VCH9 Co. Clare, Black Head | Harry Corbyn Levinge | Augustin Ley Harry Corbyn Levinge | 21/6/1891 | BIRM |
| Saxifraga rosacea | IE, VCH9 Co. Clare, Blackhead Bay | Harry Corbyn Levinge | Botanical Exchange Club of The British Isles William Hunt Painter | 19/5/1892 | ABS |
| Salix pentandra | IE, VCH23 Westmeath, Bog of Lynn | Harry Corbyn Levinge | Harry Corbyn Levinge | 14/6/1895 | SHYB |
| Rumex crispus x obtusifolius = R. x pratensis | IE, VCH23 Westmeath, Knockdrin | William Richardson Linton | Botanical Exchange Club of The British Isles Charles Bailey Harry Corbyn Levinge | 27/7/1895 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | IE, VCH23 Westmeath, Knockdrin | William Richardson Linton | Botanical Exchange Club of The British Isles Charles Bailey Harry Corbyn Levinge | 27/7/1895 | MANCH |