+ | Eriocaulon aquaticum | IE, VCH16 West Galway, Connemara,Roundstone | Samuel Alexander Stewart | Charles Bailey | 29/7/1867 | MANCH |
+ | Euphorbia hyberna | IE, VCH2 North Kerry, Killarney,Cromagloun (Cromaglan) | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles Charles Bailey | 15/6/1885 | MANCH |
+ | Euphorbia hyberna | IE, VCH2 North Kerry, Killarney,Cromagloun (Cromaglan) | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles Charles Bailey | 15/6/1885 | MANCH |
+ | Euphorbia hyberna | IE, VCH2 North Kerry, Killarney,Cromagloun (Cromaglan) | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles Charles Bailey | 15/6/1885 | MANCH |
+ | Euphorbia hyberna | IE, VCH2 North Kerry, Killarney,Cromagloun (Cromaglan) | Samuel Alexander Stewart | Coslett Herbert Waddell Elizabeth Anne Lomax | 18/6/1885 | MANCH |
+ | Galeopsis versicolor | IE, VCH38 Co. Down, Rathmullan | Samuel Alexander Stewart | Charles Bailey James Ward | 26/7/1866 | MANCH |
+ | Groenlandia densa | IE, VCH8 Co. Limerick, Ferry Bridge | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 3/8/1886 | MANCH |
+ | Hymenophyllum wilsonii | IE, VCH16 West Galway, Twelve Pins,Bengower | Samuel Alexander Stewart | Charles Bailey | 10/5/1876 | MANCH |
| Lobelia dortmanna | IE, VCH38 Co. Down, Mourne Mountains | Samuel Alexander Stewart | Richmond Museum Charles Bailey James Ward | 7/9/1865 | MANCH |
+ | Orobanche purpurea | GB, VC10 Isle of Wight, Totland,Lacy's Farm | Samuel Alexander Stewart | Charles Bailey | 7/1888 | MANCH |
| Potamogeton alpinus | IE, VCH38 Co. Down, Newcastle | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 8/8/1890 | MANCH |
| Potamogeton alpinus | IE, VCH39 Co. Antrim, Belfast | Samuel Alexander Stewart | Richmond Museum Charles Bailey James Ward | 2/7/1866 | MANCH |
| Potamogeton alpinus | IE, VCH39 Co. Antrim, Lough Mourne | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | | MANCH |
| Potamogeton berchtoldii | IE, VCH39 Co. Antrim, Lough Neagh | Samuel Alexander Stewart | Alfred Fryer | 28/6/1880 | MANCH |
| Potamogeton coloratus | IE, VCH28 Co. Sligo, Coolgagh Loch | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 4/8/1883 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH38 Co. Down, Lagan | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 12/8/1894 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH40 Co. Londonderry, coleraine | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles Charles Bailey | 29/7/1883 | MANCH |
| Potamogeton obtusifolius | IE, VCH38 Co. Down, Comber | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 27/7/1884 | MANCH |
| Potamogeton perfoliatus | IE, VCH39 Co. Antrim, Bushmills | Samuel Alexander Stewart | Richmond Museum Charles Bailey | 7/1866 | MANCH |
| Potamogeton perfoliatus | IE, VCH39 Co. Antrim, Lough Mourne | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 19/7/1880 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | IE, VCH39 Co. Antrim, Templepatrick | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 8/1894 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | IE, VCH39 Co. Antrim, Templepatrick | Samuel Alexander Stewart | Charles Bailey Samuel Alexander Stewart | 10/8/1894 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | IE, VCH39 Co. Antrim, Templepatrick | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 10/8/1894 | MANCH |
| Potamogeton perfoliatus x crispus = P. x cooperi | IE, VCH39 Co. Antrim, Templepatrick | Samuel Alexander Stewart | Manchester Museum Charles Bailey | 10/8/1894 | 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 |
+ | Potamogeton praelongus | IE, VCH39 Co. Antrim, Rathlin Island,Ushet Lough | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 4/8/1882 | MANCH |
| Primula vulgaris x veris = P. x polyantha | IE, VCH16,VCH17, Salt Hill | Samuel Alexander Stewart | | 14/5/1891 | MANCH |
| Saxifraga umbrosa x spathularis = S. x urbium | IE, VCH16 West Galway, Connemara | Samuel Alexander Stewart | Charles Bailey | 10/5/1876 | MANCH |
+ | Stratiotes aloides | IE, VCH39 Co. Antrim, Belfast,Springfield | Samuel Alexander Stewart | Richmond Museum Charles Bailey James Ward | 3/7/1865 | MANCH |
+ | Viola tricolor | IE, VCH39 Co. Antrim, Lough Neagh | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles | 25/6/1886 | MANCH |
| Apium inundatum | IE, VCH38 Co. Down, Downpatrick | Samuel Alexander Stewart | | 16/9/1886 | SLBI |
| Arenaria ciliata | IE, VCH28 Co. Sligo, Kings Mountain | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles William Hadden Beeby | 18/7/1879 | SLBI |
| Arenaria ciliata | IE, VCH28 Co. Sligo, Kings Mountain | Samuel Alexander Stewart | Reginald Wiliam Scully | 18/7/1879 | SLBI |
| Arenaria ciliata | IE, VCH28 Co. Sligo, Kings Mountain | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles Allan Octavian Hume | 18/7/1879 | SLBI |
| Carex arenaria | IE, VCH38 Co. Down | Samuel Alexander Stewart | William Hadden Beeby | 6/1876 | SLBI |
| Daboecia cantabrica | IE, VCH16 West Galway, Lough Uggool | Samuel Alexander Stewart | William Hadden Beeby | 18/8/1877 | SLBI |
| Dryas octopetala | IE, VCH9 Co. Clare, Black Head | Samuel Alexander Stewart | | 12/5/1876 | SLBI |
| Dryas octopetala | IE, VCH28 Co. Sligo, Benbulben | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles | 16/7/1879 | SLBI |
| Euphorbia hyberna | IE, Kerry, Cromaglan Mountain | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles William Hadden Beeby | 15/6/1885 | SLBI |