| Equisetum hyemale x ramosissimum = E. x moorei | IE, VCH20 Co. Wicklow, Three Castle Head | Reginald Wiliam Scully | | 3/10/1892 | BIRM |
| Carex divisa | IE, VCH21 Co. Dublin, Dublin | Richard Prendergast Vowell | Edward Francis Linton Reginald Wiliam Scully | 14/8/1886 | BM |
| Isoetes echinospora | IE, VCH1 South Kerry, Killarney | Reginald Wiliam Scully | | 8/1887 | BSBI |
| Viola tricolor subsp. curtisii | IE, VCH2 North Kerry, Banna | Reginald Wiliam Scully | | 8/1887 | BSBI |
| Isoetes lacustris subsp. morei | IE, VCH20 Co. Wicklow, Upper Lough Bray | Reginald Wiliam Scully | | 3/10/1887 | BSBI |
| Potamogeton polygonifolius | IE, Ambiguous locality (IE), Killarney | Reginald Wiliam Scully | | 6/8/1887 | BSBI |
| Salix purpurea x viminalis = S. x rubra | IE, VCH1 South Kerry, Blackwater Bridge | Reginald Wiliam Scully | Reginald Wiliam Scully | 25/8/1890 | DBN |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH1 South Kerry, Home Park, Killarney | Reginald Wiliam Scully | Reginald Wiliam Scully | 24/7/1903 | DBN |
| Salix viminalis x caprea = S. x smithiana | IE, VCH1 South Kerry, Kenmare | Reginald Wiliam Scully | Reginald Wiliam Scully | 27/8/1890 | DBN |
| Mentha aquatica x spicata = M. x piperita | IE, VCH1 South Kerry, Kenmare | Reginald Wiliam Scully | Reginald Wiliam Scully | 28/8/1890 | DBN |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH1 South Kerry, Killarney | Reginald Wiliam Scully | Reginald Wiliam Scully | 8/1887 | DBN |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH1 South Kerry, Killarney | Reginald Wiliam Scully | Reginald Wiliam Scully | 8/1887 | DBN |
| Salix viminalis x cinerea = S. x holosericea | IE, VCH2 North Kerry, Ballybunnion | Reginald Wiliam Scully | Reginald Wiliam Scully | 8/1889 | DBN |
| Salix viminalis x cinerea = S. x holosericea | IE, VCH2 North Kerry, Muckross | Reginald Wiliam Scully | Reginald Wiliam Scully | 20/8/1888 | DBN |
| Mentha arvensis x aquatica = M. x verticillata | IE, Kerry, Castleisland | Reginald Wiliam Scully | Reginald Wiliam Scully | 11/8/1888 | DBN |
| Mentha arvensis x aquatica = M. x verticillata | IE, Kerry, Killarney | Reginald Wiliam Scully | Reginald Wiliam Scully | 27/8/1903 | DBN |
| Salix viminalis x cinerea = S. x holosericea | IE, Kerry, Ross, Killarney | Reginald Wiliam Scully | Reginald Wiliam Scully | 24/8/1888 | DBN |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC29 Cambridgeshire, Chatteris | Alfred Fryer | Alexander Somerville Reginald Wiliam Scully | 22/8/1890 | E |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Mepal | Alfred Fryer | Reginald Wiliam Scully | 13/7/1888 | E |
| Carex riparia | IE, VCH5,VCH6, Youghal | Reginald Wiliam Scully Robert Albert Phillips | Alexander Somerville Robert Albert Phillips | 6/1896 | E |
| Potamogeton gramineus | IE, VCH2 North Kerry, Killarney | Reginald Wiliam Scully | | 7/1889 | E |
| Potamogeton gramineus | IE, VCH2 North Kerry, Killarney,Lower Lake | Reginald Wiliam Scully | Arthur Bennett | 7/1889 | E |
| Potamogeton gramineus | IE, VCH2 North Kerry, Killarney,Lower Lake | Reginald Wiliam Scully | Arthur Bennett | 7/1889 | E |
| Potamogeton polygonifolius | IE, Kerry, Beaufort Bridge | Reginald Wiliam Scully | Arthur Bennett Reginald Wiliam Scully | 27/7/1889 | E |
| Potamogeton gramineus | IE, Kerry, Killorglin | Reginald Wiliam Scully | Alexander Somerville Reginald Wiliam Scully | 4/8/1890 | E |
| Potamogeton gramineus | IE, VCH22 Meath, Navan | Reginald Wiliam Scully | Reginald Wiliam Scully Alfred Fryer | 30/8/1893 | E |
| Alyssum calycinum | IE, VCH4,VCH5, Cork | | Ard-Mhusaeum na h-Eireann Reginald Wiliam Scully | 19/6/1891 | GALW |
| Silene uniflora | IE, VCH2 North Kerry, Ross Island | Reginald Wiliam Scully | Reginald Wiliam Scully | 11/6/1912 | GALW |
| Callitriche stagnalis | IE, VCH2 North Kerry, Spa | Reginald Wiliam Scully | Ard-Mhusaeum na h-Eireann | 14/7/1890 | GALW |
| Trifolium striatum | IE, VCH12 Co. Wexford, Churchtown | Edward Shearburn Marshall | Reginald Wiliam Scully | 10/6/1897 | GALW |
| Lycopodium inundatum | IE, VCH20 Co. Wicklow, Glendalough | James Ponsonby Brunker | Reginald Wiliam Scully | 7/1928 | GALW |
| Callitriche intermedia | IE, VCH2 North Kerry, Killarney | Reginald Wiliam Scully | Reginald Wiliam Scully | 6/1888 | K |
+ | Eriocaulon aquaticum | IE, VCH1 South Kerry, Kenmare bay | Reginald Wiliam Scully | Charles Bailey Reginald Wiliam Scully | 15/7/1889 | MANCH |
| Potamogeton natans | IE, VCH1 South Kerry, Killarney | Reginald Wiliam Scully | Charles Bailey | 8/1887 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | IE, VCH1 South Kerry, Killarney | Reginald Wiliam Scully | Botanical Exchange Club of The British Isles Charles Bailey | 13/8/1890 | MANCH |
+ | Utricularia intermedia | IE, VCH1 South Kerry, Killarney | Elizabeth Anne Lomax Reginald Wiliam Scully | Charles Bailey Elizabeth Anne Lomax Reginald Wiliam Scully | 20/8/1908 | MANCH |
| Potamogeton gramineus x perfoliatus = P. x nitens | IE, VCH2 North Kerry, Ballymalis Castle | Reginald Wiliam Scully | Botanical Exchange Club of The British Isles Charles Bailey Reginald Wiliam Scully | 27/7/1889 | MANCH |
| Rorippa palustris | IE, VCH2 North Kerry, Blennerville | Reginald Wiliam Scully | Charles Bailey Reginald Wiliam Scully | | MANCH |
+ | Neottia nidus-avis | IE, VCH2 North Kerry, Killarney | Reginald Wiliam Scully | Charles Bailey Reginald Wiliam Scully | 7/1887 | MANCH |
+ | Baldellia ranunculoides | IE, VCH2 North Kerry, Killarney,Lower Lake | Reginald Wiliam Scully | Charles Bailey Reginald Wiliam Scully | 8/1887 | MANCH |