| Oenanthe lachenalii | IE, VCH20 Co. Wicklow, Kilcoole | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 24/8/1930 | DBC |
| Clinopodium ascendens | IE, VCH20 Co. Wicklow, Newcastle | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 23/8/1930 | 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 |
| Erysimum cheiranthoides | IE, VCH20 Co. Wicklow, Davidstown | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 30/7/1930 | DBC |
| Scutellaria minor | IE, VCH20 Co. Wicklow, Lough Dan | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 25/7/1930 | DBC |
| Cystopteris fragilis | IE, VCH20 Co. Wicklow, Lugduff | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 21/7/1930 | DBC |
| Equisetum variegatum | IE, VCH14,VCH18, Clonaslee | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 17/7/1930 | DBC |
| Meconopsis cambrica | IE, VCH20 Co. Wicklow, Glenmalur | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 14/7/1930 | DBC |
| Glechoma hederacea | IE, VCH23 Westmeath, Lough Ennell | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 12/7/1930 | DBC |
| Oenanthe fistulosa | IE, VCH22 Meath, Bective | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 10/7/1930 | DBC |
| Rhynchospora alba | IE, VCH19 Co. Kildare, Cushaling | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 9/7/1930 | DBC |
| Filago vulgaris | IE, VCH20 Co. Wicklow, Bray Head | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 5/7/1930 | 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 |
| 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 |
| Eleocharis quinqueflora | IE, VCH20 Co. Wicklow, Glen of Imaal | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 29/6/1930 | DBC |
| Carex binervis | IE, VCH21 Co. Dublin, Kilmashogue Mountain | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 14/6/1930 | DBC |
| Saxifraga stellaris | IE, VCH20 Co. Wicklow, Camarahill | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 1/6/1930 | DBC |
| Lepidium draba | IE, VCH20 Co. Wicklow, Newcastle | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 31/5/1930 | DBC |
| Ophioglossum vulgatum | IE, VCH20 Co. Wicklow, Powerscourt | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 21/5/1930 | DBC |
| Luzula pilosa | IE, VCH20 Co. Wicklow, Cronybyrne Wood | James Ponsonby Brunker | | 18/5/1930 | DBC |
| Geranium lucidum | IE, VCH20 Co. Wicklow, The Devil's Glen | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 17/5/1930 | DBC |
| Melica uniflora | IE, VCH20 Co. Wicklow, The Devil's Glen | James Ponsonby Brunker | | 17/5/1930 | 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 |
| Sisymbrium thalianum | IE, VCH20 Co. Wicklow, Murrough Cultivated | James Ponsonby Brunker | | 21/4/1930 | DBC |
| Lathraea squamaria | IE, VCH20 Co. Wicklow, Enniskerry | James Ponsonby Brunker | | 19/4/1930 | DBC |
| Potamogeton polygonifolius | IE, VCH20 Co. Wicklow, Ballinafunshoge | James Ponsonby Brunker | | 11/9/1929 | DBC |
| Agrostis stolonifera x Polypogon monspeliensis = x Agropogon littoralis | FR, Dunkerque | | Maurice Bouly de Lesdain | 15/8/1929 | DBC |
| Elytrigia repens | FR, Dunkerque | | Maurice Bouly de Lesdain | 10/8/1929 | DBC |
| Melilotus indicus | IE, VCH21 Co. Dublin, Dublin | James Ponsonby Brunker | | 9/8/1929 | DBC |
| Hieracium strictiforme | IE, VCH20 Co. Wicklow, The Devil's Glen | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 3/8/1929 | DBC |
| Hieracium umbellatum | IE, VCH20 Co. Wicklow, The Devils Glen | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 3/8/1929 | DBC |
| Drosera longifolia | IE, VCH19,VCH20, Kings River | James Ponsonby Brunker | | 1/8/1929 | DBC |
| Setaria italica | FR, Nords, Dunkerque | | Maurice Bouly de Lesdain | 8/1929 | DBC |
| Hieracium sabaudum | IE, VCH20 Co. Wicklow, Poulaphouca | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 29/7/1929 | DBC |