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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Pilcher, J.R. & Hall, V.A. | 2001 | Flora Hibernica: the wild flowers, plants and trees of Ireland | Book | | Details... |
| Pilcher, J.R. & Larmour, R. | 1982 | Late-glacial and post-glacial vegetational history of the Meenadoan nature reserve, county Tyrone | Journal | Proc. Roy. Ir. Acad. | Details... |
| Pilcher, J.R., Baillie, M.G.L., Brown, D.M., McCormac, F.G., MacSweeney, P.B. & McLawrence, A.S. | 1995 | Dendrochronology of subfossil pine in the north of Ireland | Journal | J. Ecol. | Details... |
| Pilcher, J.R., Baillie, M.G.L., Schmidt, B. & Becker, B. | 1984 | A 7272-year European tree-ring chronology | Journal | Nature | Details... |
| Pim, G. | 1878 | The lichens of the counties of Dublin and Wicklow | Journal | Sci. Proc. R. D. S. | Details... |
| Pim, G. | 1893 | Azolla carolineana in fruit | Journal | Ir. Nat. | Details... |
| Pim, G. | 1896 | Early hawthorn | Journal | Ir. Nat. | Details... |
| Pim, G. | 1896 | Limosella aquatica in Clare | Journal | Ir. Nat. | Details... |
| Pim, G. | 1898 | Medicago maculata in Co. Wicklow | Journal | Ir. Nat. | Details... |
| Pingree, R.D., Holligan, P.M., Mardell, G.T. & Head, R.N. | 1976 | The influence of physical stability on spring, summer and autumn phytoplankton blooms in the Celtic sea | Journal | J. Mar. Biol. Assoc. UK | Details... |
| Pino, J., Harrar, R.J., Sans, F.X., Masalles, R.M. & Sackville Hamilton, R.N. | 1995 | Clonal growth and fragment regeneration of Rumex obtusifolius L. | Journal | Weed Res. | Details... |
| Plunkett, G.T. | 1901 | Influence of latitude on plant-life | Journal | Ir. Nat. | Details... |
| Pogorelova, T.D. & Rabotnov, T.A. | 1978 | Experience in determining the age of Dryopteris filix-mas specimens | Journal | Rastit. Resur. | Details... |
| Polunin, O. | 1969 | Flowers of Europe - a field guide | Book | | Details... |
| Poole, A.L. & Cairns, D. | 1940 | Biological aspects of ragwort (Senecio jacobaea L.) | Published | | 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... |
| Porter, L. | 1922 | Lichens on Veronica traversii | Journal | Ir. Nat. | Details... |
| Porter, L. | 1936 | Some lichen records | Journal | Ir. Nat. J. | Details... |
| Porter, L. | 1948 | The lichens of Ireland (supplement) | Journal | Proc. Roy. Ir. Acad. | Details... |
| Porter, W. | 1903 | County Down plants | Journal | Ir. Nat. | Details... |
5058 references found.