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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Praeger, R.Ll. | 1913 | Snakes introduced into County Down | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1913 | Helvella crispa in Co. Donegal | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1914 | Problems of the Irish Flora | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Praeger, R.Ll. | 1914 | Phanerogamia | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Praeger, R.Ll. | 1915 | Peucedanum ostruthium Linn. | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1918 | Some Co. Down Plants | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1921 | Notes on Down and Dublin plants | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1927 | Arenaria balearica naturalized at Holywood, Co. Down | Journal | Ir. Nat. J. | Details... |
| Praeger, R.Ll. | 1930 | White blackbird at Marino, Co. Down | Journal | Ir. Nat. J. | Details... |
| Praeger, R.Ll. | 1936 | New edition of the 'Flora of the North-East of Ireland | Journal | Ir. Nat. J. | Details... |
| Praeger, R.Ll. | 1943 | Scrobicularia piperata in Dundrum Bay | Journal | Ir. Nat. J. | Details... |
| Praeger, R.Ll. & Megaw, W.R. | 1938 | A Flora of the north-east of Ireland | Book | | Details... |
| Preston, J. | 1962 | Explosive volcanic activity in the Triassic sandstone of Scrabo Hill, Co. Down | Journal | Ir. Nat. J. | Details... |
| Preston, J. | 1963 | An 'orbicular' quartizite at Scrabo Hill | Journal | Ir. Nat. J. | Details... |
| Preston, S.J. & Stone, R.E. | 1999 | Isothecium holtii Kindb., a new record in Co. Down (H38) | Journal | Ir. Nat. J. | Details... |
| Preston, S.J., Wilson, C., Jennings, S., Provan, J. & McDonald, R.A. | 2007 | The status of juniper Juniperus communis L. in Northern Ireland in 2005 | Journal | Ir. Nat. J. | Details... |
| Proudfoot, V.B. & Gailey, A. | 1959 | Quaternary deposits at Murphystown, Co. Down | Journal | Ir. Nat. J. | Details... |
| Rankin, M.N. & Rankin, D.H. | 1939 | Additions to the Lepidoptera of Co. Down | Journal | Ir. Nat. J. | Details... |
| Rankin, M.N. & Rankin, D.H. | 1939 | Eiders nesting in Cos. Down and Antrim | Journal | Ir. Nat. J. | Details... |
| Rankin, M.N. & Rankin, D.H. | 1941 | Breeding of common seal in Strangford Lough | Journal | Ir. Nat. J. | Details... |
1178 references found.