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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Hackney, P. | 1976 | The Sections: Botanical | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Hackney, P. | 1976 | Manuscript notebooks of records for new Flora of the NE of Ireland | Manuscript | | Details... |
| Hackney, P. | 1977 | The identity of a supposed hybrid Equisetum telmateia x fluviatile in County Antrim | Journal | Ir. Nat. J. | Details... |
| Hackney, P. | 1977 | The Sections: Botanical | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Hackney, P. | 1978 | A form of Saxifraga hirsuta L. in Down (H38) and Antrim (H39) | Journal | Ir. Nat. J. | Details... |
| Hackney, P. | 1978 | Report on flora at the mouth of River Roe C6429 | Report | | Details... |
| Hackney, P. | 1978 | Notes on visit to Castlewellan F.P. 13 November 1978 | Unpublished | | Details... |
| Hackney, P. | 1980 | Calystegia species in Co. Antrim | Journal | Ir. Nat. J. | Details... |
| Hackney, P. | 1980 | The Sections: Botanical | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Hackney, P. | 1981 | Equisetum variegatum Web. & Mohr. - a note on its occurrence in Co. Down and a comparison of some of its sites in N. Ireland | Journal | Ir. Nat. J. | Details... |
| Hackney, P. | 1981 | The Sections: Botanical | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Hackney, P. | 1984 | Cloghmore Glen, Co. Down - a botanical note | Journal | Ir. Nat. J. | Details... |
| Hackney, P. | 1985 | Asplenium trichomanes L. subsp. trichomanes in the Mourne mountains (H38) | Journal | Ir. Nat. J. | Details... |
| Hackney, P. | 1987 | Excursion: Weekend around Carlingford Lough: Botanical Report | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Hackney, P. | 1988 | Juncus foliosus in two Northern Ireland counties | Journal | Ir. Nat. J. | Details... |
| Hackney, P. | 1988 | Excursion: Botanical recording in the Dromore area | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Hackney, P. | 1991 | Sea couch Elymus pycnanthus (Gordon) Melderis in Cos. Down and Antrim (H38,39) | Journal | Ir. Nat. J. | Details... |
| Hackney, P. | 1992 | Stewart & Corry's Flora of the north-east of Ireland | Book | | Details... |
| Hackney, P. | 1994 | Report on the fields belonging to Clover Vale Farm, Island Magee (proposed site for Converter Station at Northern Ireland end of the cross-channel power link to Scotland) | Report | | Details... |
| Hackney, P. | 1994 | Notes on River Foyle in Co. Tyrone | Unpublished | | Details... |
3701 references found.