| Myosotis secunda | IE, VCH6 Co. Waterford, Kilmacthomas | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 8/7/1899 | 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 spicata = M. x gracilis | IE, VCH13 Co. Carlow, Borris | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 29/7/1899 | DBN |
| Asplenium adiantum-nigrum | IE, VCH11 Co. Kilkenny, Snowhill | | National Museum Ireland Robert Lloyd Praeger | 11/8/1899 | GALW |
| Linum bienne | IE, VCH6 Co. Waterford, Tramore | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 12/8/1899 | GALW |
| Euphrasia brevipila | IE, Galway, Oranmore | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 24/8/1899 | GALW |
| Viola canina | IE, VCH25 Co. Roscommon, Rockville House | | National Museum Ireland Robert Lloyd Praeger | 6/11/1899 | GALW |
| Nasturtium sylvestre | IE, VCH6,VCH7,VCH11, Carrick-on-Suir | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 23/6/1900 | GALW |
| Thalictrum minus | IE, VCH16 West Galway, Annaghdown | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 5/7/1900 | GALW |
| Euphrasia brevipila | IE, VCH9,VCH15, Chevy Chase Cottage | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 6/7/1900 | GALW |
| Euphrasia nemorosa | IE, VCH33 Fermanagh, Florence Court | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 20/7/1900 | GALW |
| Euphrasia brevipila | IE, VCH27 West Mayo, Killala | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 27/7/1900 | GALW |
| Euphrasia borealis | IE, Mayo, Rosserk | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 27/7/1900 | GALW |
| Hymenophyllum tunbrigense | IE, VCH33 Fermanagh, Correl Glen | Tetley West | National Museum Ireland Robert Lloyd Praeger | 31/7/1900 | 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 |
| Ceratophyllum demersum | IE, VCH8 Co. Limerick, Lough Gur | | National Museum Ireland Robert Lloyd Praeger | 16/8/1900 | GALW |
| Euphrasia brevipila | IE, VCH24 Co. Longford, Castlerea | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 19/8/1900 | GALW |
| Euphrasia borealis | IE, VCH24,VCH25, Elfeet Bay | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 20/8/1900 | GALW |
| Euphrasia brevipila | IE, VCH29 Co. Leitrim, Ballinamore | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 21/8/1900 | GALW |
| Cerastium arvense | IE, VCH16 West Galway, Gentian Hill | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 28/8/1900 | GALW |
| Papaver somniferum | IE, VCH21 Co. Dublin, Rathgar | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1902 | GALW |
| Trifolium striatum | IE, VCH38 Co. Down, Coney Island | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1902 | GALW |
| Trifolium striatum | IE, VCH31 Co. Louth, Clogher Head | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 2/7/1902 | GALW |
| Trifolium striatum | IE, VCH38 Co. Down, Killough | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 12/7/1902 | 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 |
| Euphrasia brevipila | 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 |
| Lepidium draba | IE, VCH27 West Mayo, Westport | | National Museum Ireland Robert Lloyd Praeger | 7/1903 | GALW |
| Ceratophyllum demersum | IE, Mayo, Lough Doo | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 26/7/1903 | GALW |
| Chenopodium rubrum | IE, VCH38 Co. Down, Ballyferris Point | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 26/7/1903 | GALW |
| Geranium columbinum | IE, VCH38 Co. Down, Lough Cowey | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 30/7/1903 | GALW |
| Circaea alpina | IE, VCH28 Co. Sligo, Lough Gill | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1904 | GALW |
| Isoetes lacustris | IE, VCH20,VCH21, Lough Bray Upper | J Adams | National Museum Ireland Harold Stuart Thompson | 20/7/1904 | BIRM |
| Agrimonia procera | IE, VCH38 Co. Down, Strangford Lough | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1905 | GALW |
| Teucrium scordium | IE, VCH9 Co. Clare, Corofin | | National Museum Ireland Robert Lloyd Praeger | 3/7/1905 | GALW |
| Daucus carota | IE, VCH27 West Mayo, Inishkea North | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 19/7/1905 | 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 |
| 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 |
| Cerastium diffusum | IE, VCH27 West Mayo, Inishturk | Robert Lloyd Praeger | Irish National Herbarium Glasnevin Dublin National Museum Ireland Robert Lloyd Praeger | 7/1906 | GALW |
| Juniperus communis | IE, Mayo, Lough Carra | Robert Lloyd Praeger | National Museum Ireland Robert Lloyd Praeger | 7/1906 | GALW |
| Narcissus tazetta x poeticus = N. x medioluteus | IE, VCH9 Co. Clare, Parteen | Matilda Cullen Knowles | National Museum Ireland Harold Stuart Thompson | 26/4/1907 | BIRM |
| Galium boreale | IE, VCH23,VCH24,VCH25, Lough Ree | J Adams | National Museum Ireland Harold Stuart Thompson | 24/7/1907 | BIRM |
| Daboecia cantabrica | IE, Mayo, Carrowdrisky | Matilda Cullen Knowles | National Museum Ireland Matilda Cullen Knowles | 22/6/1909 | 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 |