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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Quinlan, J. | 1974 | On the occurrence of Andricus lignicola (Hartig)(Hymenoptera: Cynipidae) in Britain | Journal | Ent. Gaz. | Details... |
| Ratcliffe, D.A., Birks, H.J.B. & Birks, H.H. | 1993 | The ecology and conservation of the Killarney Fern Trichomanes speciosum Willd. in Britain and Ireland | Journal | Biol. Cons. | Details... |
| Ray, J. | 1690 | Synopsis methodica stirpium Brittanicarum | Book | | Details... |
| Ray, J. | 1696 | Synopsis methodica stirpium Brittanicarum | Book | | Details... |
| Ray, J. | 1724 | Synopsis methodica stirpium Brittanicarum. Facsimile published by Ray Society 1973 | Book | | Details... |
| Rayner, R.W. | 1985 | Keys to the British species of Russula | Book | | Details... |
| Rea, C. | 1922 | British Basidiomycetae | Book | | Details... |
| Rea, M.W. | 1934 | The Wm. Thompson collection of British marine algae | Journal | Ir. Nat. J. | Details... |
| Reed, F.R.C. | 1921 | A monograph of the British Ordovician and Silurian Bellerphonetacea | Book | | Details... |
| Reid, D.A. | 1965 | New and interesting records of British Hymenomycetes | Journal | Trans. Brit. Mycol. Soc. | Details... |
| Reid, R.E.H. | 1958 | A monograph of the Upper Cretaceous Hexactinellida of Great Britain and Northern Ireland part 1 | Book | | Details... |
| Reilly, G.C. | 1932 | Common British beetles | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Reynolds, J. | 2003 | Book review: 'Atlas of the land and freshwater molluscs of Britain & Ireland' by M. Kerney | Journal | Ir. Nat. J. | Details... |
| Reynolds, J. & Wiltshire, E. | 1996 | Review: 'Trees of Britain' by A. Mitchell | Journal | Ir. Nat. J. | Details... |
| Reynoldson, T.B. | 1978 | A key to the British species of freshwater triclads (Turbellaria: Paludicola) | Book | | Details... |
| Rich, T.C.G. | 1987 | The genus Barbarea R.Br. (Cruciferae) in Britain and Ireland | Journal | Watsonia | Details... |
| Rich, T.C.G. | 1991 | Crucifers of Great Britain and Ireland | Book | | Details... |
| Rich, T.C.G. & Lewis, J. | 1999 | Use of herbarium material for mapping the distribution of Erophila (Brassicaceae) taxa sensu Filfilan & Elkington in Britain and Ireland | Journal | Watsonia | Details... |
| Richards, O.W. | 1930 | The British species of Sphaeroceridae (Borboridae): Diptera) | Journal | Proc. Roy. Ent. Soc. Lond. | Details... |
| Richards, O.W. | 1939 | The British Bethylidae (s.l.) (Hymenoptera) | Journal | Trans. Roy. Ent. Soc. Lond. | Details... |
922 references found.