| Erophila verna | IE, VCH20 Co. Wicklow, Scalp | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 8/4/1894 | GALW |
| Myosotis secunda | IE, VCH21 Co. Dublin, Glenasmole | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 6/1895 | GALW |
| Chenopodium murale | IE, VCH21 Co. Dublin, Howth | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 30/8/1894 | GALW |
| Cerastium diffusum | IE, VCH21 Co. Dublin, Portmarnock | | National Museum Ireland Robert Lloyd Praeger | 12/5/1895 | GALW |
| Silene latifolia subsp. alba | IE, VCH21 Co. Dublin, Portmarnock | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 6/1894 | GALW |
| Papaver somniferum | IE, VCH21 Co. Dublin, Rathgar | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1902 | GALW |
| Trifolium arvense | IE, VCH21 Co. Dublin, Rush | David McArdle | National Museum Ireland Robert Lloyd Praeger | 9/1894 | GALW |
| Linum bienne | IE, VCH22 Meath, Laytown | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 8/1896 | GALW |
| Minuartia hybrida | IE, VCH23 Westmeath, Athlone | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 2/7/1899 | GALW |
| Mentha arvensis x aquatica x spicata = M. x smithiana | IE, VCH23 Westmeath, Kilcleagh Abbey | | National Museum Ireland Alexander Goodman More | 9/1855 | DBN |
| 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 |
| Euphrasia brevipila | IE, VCH24 Co. Longford, Castlerea | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 19/8/1900 | GALW |
| Thalictrum minus | IE, VCH24 Co. Longford, Priest's Island | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 28/6/1899 | GALW |
| Viola canina | IE, VCH25 Co. Roscommon, Rockville House | | National Museum Ireland Robert Lloyd Praeger | 6/11/1899 | GALW |
| Botrychium lunaria | IE, VCH27 West Mayo, Clare Island | | National Museum Ireland Robert Lloyd Praeger | 7/1903 | GALW |
| Cerastium diffusum | IE, VCH27 West Mayo, Clare Island | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1903 | GALW |
| Conium maculatum | IE, VCH27 West Mayo, Clare Island | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1903 | GALW |
| Euphrasia brevipila | IE, VCH27 West Mayo, Clare Island | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1903 | GALW |
| Daucus carota | IE, VCH27 West Mayo, Inishkea North | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 19/7/1905 | GALW |
| Cerastium diffusum | IE, VCH27 West Mayo, Inishturk | Robert Lloyd Praeger | Irish National Herbarium Glasnevin Dublin National Museum Ireland Robert Lloyd Praeger | 7/1906 | GALW |
| Epilobium obscurum | IE, VCH27 West Mayo, Inishturk | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1906 | GALW |
| Silene dioica | IE, VCH27 West Mayo, Inishturk | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1906 | GALW |
| Euphrasia brevipila | IE, VCH27 West Mayo, Killala | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 27/7/1900 | GALW |
| Lepidium draba | IE, VCH27 West Mayo, Westport | | National Museum Ireland Robert Lloyd Praeger | 7/1903 | GALW |
| 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 |
| Juniperus communis | IE, Mayo, Lough Carra | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1906 | GALW |
| Ceratophyllum demersum | IE, Mayo, Lough Doo | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 26/7/1903 | GALW |
| Euphrasia borealis | IE, Mayo, Rosserk | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 27/7/1900 | GALW |
| Circaea alpina | IE, VCH28 Co. Sligo, Lough Gill | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1904 | GALW |
| Euphrasia brevipila | IE, VCH29 Co. Leitrim, Ballinamore | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 21/8/1900 | GALW |
| Euphrasia brevipila | IE, VCH29 Co. Leitrim, Lough Gill | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 24/7/1899 | GALW |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH30 Co. Cavan, Lough Oughter | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 8/1905 | DBN |
| Chenopodium rubrum | IE, VCH31 Co. Louth, Baltray | | National Museum Ireland Robert Lloyd Praeger | 11/8/1896 | GALW |
| Trifolium striatum | IE, VCH31 Co. Louth, Clogher Head | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 2/7/1902 | GALW |
| Hymenophyllum tunbrigense | IE, VCH33 Fermanagh, Correl Glen | Tetley West | National Museum Ireland Robert Lloyd Praeger | 31/7/1900 | GALW |
| Euphrasia nemorosa | IE, VCH33 Fermanagh, Florence Court | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 20/7/1900 | GALW |
| Carum carvi | IE, VCH37 Co. Armagh, Armagh, Mullinure | W F Johnson | National Museum Ireland Robert Lloyd Praeger | 5/1894 | GALW |
| Chenopodium rubrum | IE, VCH38 Co. Down, Ballyferris Point | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 26/7/1903 | GALW |
| Trifolium striatum | IE, VCH38 Co. Down, Coney Island | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1902 | GALW |
| Trifolium striatum | IE, VCH38 Co. Down, Killough | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 12/7/1902 | GALW |
| Geranium columbinum | IE, VCH38 Co. Down, Lough Cowey | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 30/7/1903 | GALW |
| Mentha spicata x suaveolens = M. x villosa | IE, VCH38 Co. Down, Saul | Coslett Herbert Waddell | National Museum Ireland Alexander Goodman More Coslett Herbert Waddell | 2/10/1894 | DBN |
| Agrimonia procera | IE, VCH38 Co. Down, Strangford Lough | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1905 | GALW |
| Lithospermum officinale | IE, VCH39 Co. Antrim, Cave Hill | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 15/7/1885 | GALW |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH39 Co. Antrim, Lough Neagh | Richard Manliffe Barrington | National Museum Ireland | 27/8/1874 | DBN |
| Lychnis flos-cuculi | IE, VCH39 Co. Antrim, Portmore | | National Museum Ireland Robert Lloyd Praeger | 6/1893 | GALW |