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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Nelson, E.C. & Coker, P.D. | 1974 | E. vagans in Fermanagh | Journal | Bot. J. Linn. Soc. | Details... |
| Northridge, R. | 2003 | Aster lanceolatus Willd. and A. x salignus Willd. in Co Fermanagh (H33) | Journal | Ir. Nat. J. | Details... |
| Northridge, R. & Northridge, H. | 2007 | Killarney Fern Trichomanes speciosum Willd. in Northern Ireland | Journal | Ir. Nat. J. | Details... |
| Northridge, R.H. | 1991 | Chenopodium capitatum in Co. Fermanagh | Journal | Ir. Nat. J. | Details... |
| Northridge, R.H. | 1995 | Equisetum variegatum Schleicher in West Donegal (H35) | Journal | Ir. Nat. J. | Details... |
| Northridge, R.H. | 1996 | The first vice-county record of Thelyptris palustris Scott in Fermanagh (H33) | Journal | Ir. Nat. J. | Details... |
| Northridge, R.H. & Northridge, H.J. | 1992 | Cirsium oleraceum (L.) Scop. in Co. Fermanagh (H33) second Irish record | Journal | Ir. Nat. J. | Details... |
| O'Dare, A.M. | 1990 | Florence Court, Co. Fermanagh, Northern Ireland Lichen Survey | Unpublished | | Details... |
| O'Dare, A.M. | 1990 | Marble Arch NNR and Crossmurrin NNR, Co. Fermanagh, Northern Ireland Lichen Survey | Report | | Details... |
| O'Dare, A.M. | 1990 | Correll Glen NNR, Derrygonnelly, Co. Fermanagh, Northern Ireland Lichen Survey | Report | | Details... |
| Olaloye, F. | 1974 | Some Penniretepora (Bryozoa) from the Visean of county Fermanagh with a revision of the generic name | Journal | Proc. Roy. Ir. Acad. | Details... |
| Padget, P. | 1953 | The stratigraphy of Cuilcagh, Ireland | Journal | Geol. Mag. | Details... |
| Partridge, C.E. | 1893 | Lepidoptera of Enniskillen | Journal | Ent. Monthly Mag. | Details... |
| Partridge, C.E. | 1895 | Further captures of Lepidoptera at Enniskillen, Ireland | Journal | Ent. Monthly Mag. | Details... |
| Partridge, C.E. | 1895 | Supplementary notes on the Lepidoptera of Enniskillen | Journal | Ent. Monthly Mag. | Details... |
| Phillips, J.C.L. | 1990 | Dense-flowered or Irish orchid Neotinea maculata (Desf.) Stearn in Co. Fermanagh (H33) | Journal | Ir. Nat. J. | Details... |
| Phillips, J.C.L. | 1992 | Excursion: Castle Caldwell | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, J.C.L. | 1993 | Presidential excursion: Florence Court Forest Park | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, W.H. | 1901 | My hobby about ferns and its results: personal reminiscences | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Porley, R. D. | 2001 | Mosses and liverworts of the sandstone scarps of the Lough Navar Forest region, Co Fermanagh | Journal | Ir. Nat. J. | Details... |
243 references found.