| Mentha arvensis x aquatica = M. x verticillata | IE, VCH11 Co. Kilkenny, Lough Cullin | Richard Manliffe Barrington | National Museum Ireland | 19/8/1871 | DBN |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH39 Co. Antrim, Lough Neagh | Richard Manliffe Barrington | National Museum Ireland | 27/8/1874 | DBN |
| Thalictrum minus | IE, VCH15 South-east Galway, Dalystown | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 21/6/1898 | GALW |
| Mentha arvensis x aquatica x spicata = M. x smithiana | IE, VCH3,VCH4, South Bride | Isaac Carroll | National Museum Ireland Alexander Goodman More | 9/1855 | DBN |
| Salix viminalis x caprea = S. x smithiana | IE, VCH27 West Mayo, Westport | Matilda Cullen Knowles | National Museum Ireland Matilda Cullen Knowles | 4/7/1909 | DBN |
| Daboecia cantabrica | IE, Mayo, Carrowdrisky | Matilda Cullen Knowles | National Museum Ireland Matilda Cullen Knowles | 22/6/1909 | GALW |
| Ceratophyllum demersum | IE, VCH23 Westmeath, Lough Derravaragh | Harry Corbyn Levinge | National Museum Ireland Harry Corbyn Levinge Robert Lloyd Praeger | 9/8/1892 | GALW |
| Stellaria palustris | IE, VCH23 Westmeath, Lough Ennell | Harry Corbyn Levinge | National Museum Ireland Harry Corbyn Levinge Robert Lloyd Praeger | 30/7/1892 | GALW |
| Trifolium arvense | IE, VCH21 Co. Dublin, Rush | David McArdle | National Museum Ireland Robert Lloyd Praeger | 9/1894 | GALW |
| Mentha arvensis x aquatica x spicata = M. x smithiana | IE, Cork | | National Museum Ireland Alexander Goodman More | 9/1855 | DBN |
| Mentha arvensis x aquatica x spicata = M. x smithiana | IE, VCH23 Westmeath, Kilcleagh Abbey | | National Museum Ireland Alexander Goodman More | 9/1855 | DBN |
| Nasturtium sylvestre | IE, VCH6,VCH7,VCH11, Carrick-on-Suir | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 23/6/1900 | GALW |
| Euphrasia brevipila | IE, VCH9,VCH15, Chevy Chase Cottage | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 6/7/1900 | GALW |
| Geranium columbinum | IE, VCH6,VCH7, Clonmel | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 28/5/1897 | GALW |
| Cerastium fontanum subsp. vulgare | IE, VCH22,VCH31, Drogheda | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 9/6/1895 | GALW |
| Euphrasia borealis | IE, VCH24,VCH25, Elfeet Bay | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 20/8/1900 | GALW |
| Moehringia trinervia | IE, VCH19,VCH22, Maynooth | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 26/5/1894 | GALW |
| Myosotis secunda | IE, VCH6 Co. Waterford, Kilmacthomas | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 8/7/1899 | GALW |
| Linum bienne | IE, VCH6 Co. Waterford, Tramore | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 12/8/1899 | GALW |
| Ceratophyllum demersum | IE, VCH8 Co. Limerick, Lough Gur | | National Museum Ireland Robert Lloyd Praeger | 16/8/1900 | GALW |
| Teucrium scordium | IE, VCH9 Co. Clare, Corofin | | National Museum Ireland Robert Lloyd Praeger | 3/7/1905 | GALW |
| Adiantum capillus-veneris | IE, VCH9 Co. Clare, Kilmurvy | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1895 | GALW |
| Geranium sanguineum | IE, VCH10 North Tipperary, Cloughjordan | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 12/8/1900 | GALW |
| Minuartia hybrida | IE, VCH10 North Tipperary, Cloughjordan | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 12/8/1900 | GALW |
| Euphrasia brevipila | IE, VCH10 North Tipperary, Cloughjordan | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 12/8/1900 | GALW |
| Stellaria palustris | IE, VCH10 North Tipperary, Youghal Bay | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 25/6/1899 | GALW |
| Melampyrum pratense | IE, VCH11 Co. Kilkenny, Brandon Hill | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 1/8/1898 | GALW |
| Asplenium adiantum-nigrum | IE, VCH11 Co. Kilkenny, Snowhill | | National Museum Ireland Robert Lloyd Praeger | 11/8/1899 | GALW |
| Mentha arvensis x spicata = M. x gracilis | IE, VCH13 Co. Carlow, Borris | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 29/7/1899 | DBN |
| Coronopus didymus | IE, VCH14 Laois, Graigue | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 4/7/1898 | GALW |
| Stellaria palustris | IE, VCH15 South-east Galway, Portumna | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 23/6/1898 | GALW |
| Thalictrum minus | IE, VCH16 West Galway, Annaghdown | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 5/7/1900 | GALW |
| Cerastium arvense | IE, VCH16 West Galway, Gentian Hill | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 28/8/1900 | GALW |
| Adiantum capillus-veneris | IE, VCH16 West Galway, Ourtnagapple | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1895 | GALW |
| Taxus baccata | IE, VCH16 West Galway, Roundstone | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 22/8/1896 | GALW |
| Stellaria palustris | IE, VCH17 North-east Galway, Tuaim | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 3/7/1899 | GALW |
| Taxus baccata | IE, Galway, Donamon | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 6/1897 | GALW |
| Euphrasia brevipila | IE, Galway, Oranmore | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 24/8/1899 | GALW |
| Ophioglossum vulgatum | IE, VCH18 Offaly, Lough Goura | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 25/6/1898 | GALW |
| Aquilegia vulgaris | IE, VCH18 Offaly, Tullamore | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 25/5/1895 | GALW |