| Equisetum arvense | IE, VCH39 Co. Antrim, Cushendall | Charles Bailey | | 9/7/1896 | BIRM |
| Potamogeton perfoliatus | IE, VCH39 Co. Antrim, Bushmills | Samuel Alexander Stewart | Richmond Museum Charles Bailey | 7/1866 | MANCH |
+ | Stratiotes aloides | IE, VCH39 Co. Antrim, Belfast,Springfield | Samuel Alexander Stewart | Richmond Museum Charles Bailey James Ward | 3/7/1865 | MANCH |
+ | Lolium temulentum | IE, VCH39 Co. Antrim, Belfast,Newtonards | Edward Francis Linton | Charles Bailey | 16/8/1872 | MANCH |
+ | Potamogeton praelongus | IE, VCH39 Co. Antrim, Belfast,Lagan Canal | Samuel Alexander Stewart | Charles Bailey James Ward | 2/7/1866 | MANCH |
+ | Potamogeton praelongus | IE, VCH39 Co. Antrim, Belfast,Lagan Canal | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 23/6/1873 | MANCH |
+ | Equisetum hyemale x variegatum = E. x trachyodon | IE, VCH39 Co. Antrim, Belfast,Colin Glen | William Mateer | Charles Bailey | 8/1850 | MANCH |
+ | Equisetum hyemale x variegatum = E. x trachyodon | IE, VCH39 Co. Antrim, Belfast,Colin Glen | Samuel Alexander Stewart | Richmond Museum Charles Bailey James Ward | 7/6/1865 | MANCH |
+ | Equisetum hyemale x variegatum = E. x trachyodon | IE, VCH39 Co. Antrim, Belfast,Colin Glen | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles Charles Bailey | 29/7/1893 | MANCH |
+ | Gnaphalium luteoalbum | IE, VCH39 Co. Antrim, Belfast | | Charles Bailey John Wilson Rimington Spencer Henry Bickham | 1845 | MANCH |
| Potamogeton alpinus | IE, VCH39 Co. Antrim, Belfast | Samuel Alexander Stewart | Richmond Museum Charles Bailey James Ward | 2/7/1866 | MANCH |
| Alchemilla xanthochlora | IE, VCH39 Co. Antrim, Ballintoy | Charles Bailey | Charles Bailey | 11/7/1896 | BIRM |
| Anemone nemorosa | IE, VCH39 Co. Antrim, Ballintoy | | Charles Bailey | | MANCH |
| Angelica archangelica | IE, VCH39 Co. Antrim, Ballintoy IE, VCH39 Co. Antrim, Carrickarade Island | Charles Bailey | Botanical Exchange Club of The British Isles Charles Bailey | 11/7/1896 | BIRM |
+ | Gnaphalium sylvaticum | IE, VCH39 Co. Antrim, Ballintoy | Charles Bailey | Charles Bailey | 11/7/1896 | MANCH |
| Oxalis acetosella | IE, VCH39 Co. Antrim, Ballintoy | Charles Bailey | Charles Bailey | 11/7/1896 | MANCH |
| Rubus polyanthemus | IE, VCH39 Co. Antrim, Aird | Charles Bailey | Botanical Exchange Club of The British Isles Allan Octavian Hume | 13/7/1896 | SLBI |
+ | Chrysanthemum segetum | IE, VCH39 Co. Antrim | Charles Bailey | Charles Bailey | 13/7/1896 | MANCH |
+ | Mentha suaveolens x longifolia = M. x rotundifolia | IE, VCH38 Co. Down, Saul | Coslett Herbert Waddell | Charles Bailey | 8/1895 | MANCH |
+ | Viola tricolor | IE, VCH38 Co. Down, Saintfield | Coslett Herbert Waddell | Botanical Exchange Club of The British Isles Charles Bailey Coslett Herbert Waddell | 4/10/1910 | MANCH |
+ | Galeopsis versicolor | IE, VCH38 Co. Down, Rathmullan | Samuel Alexander Stewart | Charles Bailey James Ward | 26/7/1866 | MANCH |
| Potamogeton alpinus | IE, VCH38 Co. Down, Newcastle | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 8/8/1890 | MANCH |
| Lobelia dortmanna | IE, VCH38 Co. Down, Mourne Mountains | Samuel Alexander Stewart | Richmond Museum Charles Bailey James Ward | 7/9/1865 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | IE, VCH38 Co. Down, magheralin | Coslett Herbert Waddell | Botanical Exchange Club of The British Isles Charles Bailey Coslett Herbert Waddell | 7/1904 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH38 Co. Down, Lagan | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 12/8/1894 | MANCH |
+ | Apium nodiflorum x inundatum = A. x moorei | IE, VCH38 Co. Down, Downpatrick,Quoile | Samuel Alexander Stewart | Charles Bailey | 16/9/1886 | MANCH |
| Apium nodiflorum x inundatum = A. x moorei | IE, VCH38 Co. Down, Downpatrick | Samuel Alexander Stewart | Botanical Exchange Club Charles Bailey | 16/9/1886 | MANCH |
| Apium nodiflorum x inundatum = A. x moorei | IE, VCH38 Co. Down, Downpatrick | Samuel Alexander Stewart | Charles Bailey | 7/1880 | MANCH |
| Potamogeton obtusifolius | IE, VCH38 Co. Down, Comber | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 27/7/1884 | MANCH |
+ | Carex divisa | IE, VCH38 Co. Down | Samuel Alexander Stewart | Botanical Exchange Club Charles Bailey | 6/1876 | MANCH |
| Potamogeton friesii x crispus = P. x lintonii | IE, VCH37 Co. Armagh, Battleford Bridge | Robert Lloyd Praeger | Alfred Fryer Charles Bailey | 7/1892 | MANCH |
+ | Salix aurita x repens x herbacea = S. x grahamii | IE, Donegal, Co. Donegal,Muckish Montain | John Thomas Irvine Boswell-Syme | Charles Bailey | 8/1879 | MANCH |
| Salix aurita x repens x herbacea = S. x grahamii | IE, Donegal Cultivated | John Thomas Irvine Boswell-Syme | Charles Bailey | 5/1881 | MANCH |
| Salix aurita x repens x herbacea = S. x grahamii | IE, Donegal Cultivated | John Thomas Irvine Boswell-Syme | Charles Bailey | 7/1881 | MANCH |
| Salix aurita x repens x herbacea = S. x grahamii | IE, Donegal Cultivated | John Thomas Irvine Boswell-Syme | Charles Bailey | 7/1881 | MANCH |
+ | Polystichum lonchitis | IE, VCH33 Fermanagh, Enniskillen,Florence Court | John Simpson Tyerman | Charles Bailey | 1868 | MANCH |
| Arenaria ciliata | IE, VCH28 Co. Sligo, Kings Mountain | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles Charles Bailey | 18/7/1879 | BIRM |
+ | Equisetum hyemale x variegatum = E. x trachyodon | IE, VCH28 Co. Sligo, Glen Car | George Claridge Druce | Botanical Exchange Club of The British Isles Charles Bailey George Claridge Druce | 5/1909 | MANCH |
| Potamogeton coloratus | IE, VCH28 Co. Sligo, Coolgagh Loch | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 4/8/1883 | MANCH |
| Juncus bulbosus | IE, Mayo, R.Bundorragha, Killary Harbour, op. Leenane | Charles Bailey | Botanical Exchange Club of The British Isles Charles Bailey | 5/10/1885 | ABS |