| Equisetum variegatum | IE, VCH14,VCH18, Clonaslee | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 17/7/1930 | DBC |
| Calamintha arvensis | IE, VCH18,VCH19,VCH22, Edenderry | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | | DBC |
| Chamaemelum nobile | IE, VCH20,VCH21, Kilmacanoge | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 21/9/1930 | DBC |
| Drosera longifolia | IE, VCH19,VCH20, Kings River | James Ponsonby Brunker | | 1/8/1929 | DBC |
| Botrychium lunaria | IE, VCH13,VCH20, Rathglass Bridge | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 24/5/1931 | DBC |
| Ranunculus circinatus | IE, VCH18 Offaly, Edenderry | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 30/6/1931 | DBC |
| Selaginella selaginoides | IE, VCH18 Offaly, Edenderry | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | | DBC |
| Rhynchospora alba | IE, VCH19 Co. Kildare, Cushaling | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 9/7/1930 | DBC |
| Stellaria palustris | IE, VCH19 Co. Kildare, Cushaling | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | | DBC |
| Asplenium lanceolatum | IE, VCH20 Co. Wicklow, Arklow Head | James Ponsonby Brunker | | 21/7/1929 | DBC |
| Thalictrum minus subsp. arenarium | IE, VCH20 Co. Wicklow, Arklow, Ennereilly | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 5/9/1930 | DBC |
| Bromus hordeaceus | IE, VCH20 Co. Wicklow, Askintinny | James Ponsonby Brunker | | 15/6/1926 | DBC |
| Hieracium sabaudum | IE, VCH20 Co. Wicklow, Avoca | James Ponsonby Brunker | | 2/9/1928 | DBC |
| Potamogeton polygonifolius | IE, VCH20 Co. Wicklow, Ballinafunshoge | James Ponsonby Brunker | | 11/9/1929 | DBC |
| Filago minima | IE, VCH20 Co. Wicklow, Ballyknockan | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 4/8/1930 | DBC |
| Gnaphalium sylvaticum | IE, VCH20 Co. Wicklow, Ballyknockan | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 4/8/1930 | DBC |
| Alchemilla vulgaris | IE, VCH20 Co. Wicklow, Ballyman Glen | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 14/5/1930 | DBC |
| Botrychium lunaria | IE, VCH20 Co. Wicklow, Ballyman Glen | James Ponsonby Brunker | | 14/5/1930 | DBC |
| Carex dioica | IE, VCH20 Co. Wicklow, Ballyman Glen | James Ponsonby Brunker | | 14/5/1930 | DBC |
| Anemone nemorosa | IE, VCH20 Co. Wicklow, Ballysmuttan | James Ponsonby Brunker | | 3/5/1930 | DBC |
| Filago vulgaris | IE, VCH20 Co. Wicklow, Bray Head | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 5/7/1930 | DBC |
| Saxifraga stellaris | IE, VCH20 Co. Wicklow, Camarahill | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 1/6/1930 | DBC |
| Listera cordata | IE, VCH20 Co. Wicklow, Carrick Mountain | James Ponsonby Brunker | | 16/6/1929 | DBC |
| Luzula pilosa | IE, VCH20 Co. Wicklow, Cronybyrne Wood | James Ponsonby Brunker | | 18/5/1930 | DBC |
| Hieracium sect. Oreadea | IE, VCH20 Co. Wicklow, Dargle | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 1/7/1929 | DBC |
| Erysimum cheiranthoides | IE, VCH20 Co. Wicklow, Davidstown | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 30/7/1930 | DBC |
| Bidens cernua | IE, VCH20 Co. Wicklow, Ennereilly | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 5/9/1930 | DBC |
| Euphorbia portlandica | IE, VCH20 Co. Wicklow, Ennereilly | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 3/9/1930 | DBC |
| Lathraea squamaria | IE, VCH20 Co. Wicklow, Enniskerry | James Ponsonby Brunker | | 19/4/1930 | DBC |
| Eleocharis quinqueflora | IE, VCH20 Co. Wicklow, Glen of Imaal | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 29/6/1930 | DBC |
| Lycopodium inundatum | IE, VCH20 Co. Wicklow, Glendalough | James Ponsonby Brunker | Reginald Wiliam Scully | 7/1928 | GALW |
| Meconopsis cambrica | IE, VCH20 Co. Wicklow, Glenmalur | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 14/7/1930 | DBC |
| Viola lutea | IE, VCH20 Co. Wicklow, Granabeg | James Ponsonby Brunker | | 28/6/1931 | DBC |
| Oenanthe lachenalii | IE, VCH20 Co. Wicklow, Kilcoole | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 24/8/1930 | DBC |
| Trifolium striatum | IE, VCH20 Co. Wicklow, Kilcoole | James Ponsonby Brunker | | 1/6/1929 | DBC |
| Koeleria cristata | IE, VCH20 Co. Wicklow, Killoughter | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 4/7/1930 | DBC |
| Cirsium dissectum | IE, VCH20 Co. Wicklow, Lough Dan | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 2/7/1930 | DBC |
| Hieracium sect. Foliosa | IE, VCH20 Co. Wicklow, Lough Dan | James Ponsonby Brunker | | 16/9/1928 | DBC |
| Lycopodium clavatum | IE, VCH20 Co. Wicklow, Lough Dan | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 2/7/1930 | DBC |
| Orobanche caryophyllacea | IE, VCH20 Co. Wicklow, Lough Dan | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 2/7/1930 | DBC |