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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Petch, T. | 1938 | British Hypocreales | Journal | Trans. Brit. Mycol. Soc. | Details... |
| Petch, T. | 1941 | Further notes on British Hypocreales | Journal | Trans. Brit. Mycol. Soc. | Details... |
| Phillips, R. | 1981 | Mushrooms & other fungi of Great Britain & Europe | Book | | Details... |
| Phillips, W.H. | 1890 | A gossip about British ferns and their varieties, with notices of local finds: with illustrations | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, W.H. | 1900 | British ferns | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, W.H. | 1904 | Varieties in British ferns | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Picton, B.E. & Brown, G.E. | 1981 | Four nudibranch gastropods new to the fauna of Great Britain and Ireland including a description of a new species of Doto Oken | Journal | Ir. Nat. J. | Details... |
| Pilcher, J.R. | 1986 | Review: 'History of the British Flora , a factual basis for phytogeography' by Sir H. Godwin | Journal | Ir. Nat. J. | Details... |
| Pilcher, J.R. & Gray, B. | 1982 | The relationship between oak tree growth and climate in Britain | Journal | J. Ecol. | Details... |
| Pinceel, J., Jordaens K., Van Houtte N., De Winter A.J., & Baeckeljau T. | 2004 | Molecular and morphological data reveal cryptic taxonomic diversity in the terrestrial slug complex Arion subfuscus/fuscus (Mollusca, Pulmonata, Arionidae) | Journal | Biol. J. Linn. Soc. | Details... |
| Plant, C.W. | 1989 | Two new species of Coniopteryx for Britain | Journal | Neuro News | Details... |
| Plant, C.W. | 1991 | Wesmaelus balticus (Tjeder) (Neuroptera: Hemerobiidae) new to Scotland, with a review of British records | Journal | Ent. Gaz. | Details... |
| Plant, C.W. | 1994 | Provisional atlas of the lacewings and allied insects (Neuroptera, Megaloptera, Rhaphidioptera and Mecoptera) of Britain and Ireland | Book | | Details... |
| Plant, C.W. & Barnard, P.C. | 1988 | Hemerobius fenestratus Tjeder (Neuroptera: Hemerobiidae) new to Britain | Journal | Ent. Gaz. | Details... |
| Platts, E.A. | 1979 | Review: 'A field guide to the reptiles and amphibians of Britain and Europe' by E.N. Arnold & J.A. Burton | Journal | Ir. Nat. J. | Details... |
| Pont, A.C. & Horsfield, D. | 1989 | Spilogona trigonata (Zetterstedt, 1838) (Diptera: Muscidae), new to Britain | Journal | Ent. Monthly Mag. | Details... |
| Pope, R.D. | 1977 | Coleoptera & Strepsiptera. A checklist of British insects | Book | | Details... |
| Praeger, R.Ll. | 1895 | Review: 'The London catalogue of British plants' | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1898 | On the position of the fructification in certain British ferns and horsetails | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1904 | Review: 'Manual of British botany' by C.C. Babington | Journal | Ir. Nat. | Details... |
922 references found.