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Pryce, R.D. 2004. The Rhos Pastures of South-west Wales and their Conservation. Presidential Address, 10th May 2003. Watsonia 25, 1-16
Preston, C.D. 2004. John Raven’s Report on his visit to the Hebrides, 1948. Watsonia 15, 17-44
Pearman, D.A. & Walker, K.J. 2004. An examination of J.W. Heslop Harrison’s unconfirmed plant records from Rum. Watsonia 25, 45-63
Tennant, D.J. 2004. A re-assessment of montane willow (Salix L., Salicaceae) hybrids in Scotland. Watsonia 25, 65-82
Kelleher, C.T., Kelly, D.L. & Hodkinson, T.R. 2004. Species status, hybridisation and geographic distribution of Irish populations of Quercus petraea (Matt.) Liebl. and Quercus robur L. Watsonia 25, 83-97
Nicholson, R.A., Showler, A.J. & Rich, T.C.G. 2004. Further observations on the ecology and distribution of Cardamine bulbifera (L.) Crantz (Brassicaceae) in the British Isles. Watsonia 25, 99-106
Gurney, M. 2004. Jersey Cudweed Gnaphalium luteoalbum L. at Dungeness RSPB Reserve, East Kent. Watsonia 25, 107-113
Pearman, D.A. & Rumsey, F.J. 2004. Drosera × belezeana Camus confirmed for the British Isles. Watsonia 25, 115-119
Edgington, J.A. 2004. Sagina maritima Don (Caryophyllaceae) and other halophytes in London. Watsonia 25, 121-126
Notes. Watsonia 25, 127-130 (2004)
- Carex vaginata Tausch (Cyperaceae): a sedge new to England. R.W.M. Corner.
Book reviews. Watsonia 25 (2004), 131–135
Wentworth, J.E., Sieber, V.K. & Ferris, C. 2004. An assessment of the origin of Alopecurus geniculatus L. based on 2C DNA amounts, NOR sites, RAPDs and cpDNA analysis. Watsonia 25, 137–155
Allen, D.E. 2005. Five new species of Rubus L. (Rosaceae) mostly from central south England. Watsonia 25, 157-174
Sumpter, J.P., D’Ayala, R., Parfitt, A.J., Pratt, P. & Raper, C. 2004. The current status of Military (Orchis militaris) and Monkey (Orchis simia) Orchids in the Chilterns. Watsonia 25, 175-183
Rich, T.C.G. & Houston, L. 2004. The distribution and population sizes of the rare English endemic Sorbus wilmottiana E.F. Warburg, Wilmott’s Whitebeam (Rosaceae). Watsonia 25, 185-191
Foley, M.J.Y. 2004. A summary of the past and present status of Spiranthus aestivalis (Poir.) Rich. (Orchidaceae) (Summer Ladies-tresses) in north-west Europe. Watsonia 25, 193-201
Maskew, R. & Primavesi, A.L. 2004. A re-examination of Rosa x perthensis Rouy. Watsonia 25, 203-205
Notes. Watsonia 25 (2004), 207–212
- Tofieldia pusilla (Michx. Pers. at the Scottish border. M.E. Braithwaite.
- The taxonomic status of Rubus orbifolius sensu W.C.R. Watson (Rosaceae). D.E. Allen.
- A new site in Caithness for Saxifraga hirculus. J.K. Butler.
- Rubus cromerensis A.L. Bull (Rosaceae) must give way to R. neumannianus Weber & Vannerom which has priority. A.L. Bull.
Book reviews. Watsonia 25 (2004), 213–220
Obituaries. Watsonia 25 (2004), 221–230
- R.H. Roberts (1910-2003), by Nigel Brown
- Peter John Selby (1946-2003), by Tony Mundell & Elizabeth Young
- Philip Morgans Smith (1941-2004), by C.E. Jeffree
- Francis William Simpson (1912-2003), by Martin Sanford
Greenwood, E.F. 2005. The changing flora of the Lancaster Canal in West Lancaster (v.c. 60). Watsonia 25, 231-253
Murphy, R.J. & Rumsey. F.J. 2005. Cystopteris diaphana (Bory) Blasdell (Woodsiaceae) - an overlooked native new to the British Isles? Watsonia 25, 255-263
Holmes, D.S. 2005. Sexual reproduction in British populations of Adoxa moschatellina L. Watsonia 25, 265-273
Rich, T.C.G., Evans, S.B. & A.E., Magnanon, S., Hopkins, F., Caldas, F.B., Pryor, K.V. & Lledo, M.D. 2005. Distribution of the western European endemic Centaurium scilloides (L. f.) Samp. (Gentianaceae), Perennial Centaury. Watsonia 25, 275-281
Rich, T.C.G. 2005. Conservation of Britain’s biodiversity: Hieracium neocoracinum (Asteraceae), Craig Cerrig-gleisiad Hawkweed. Watsonia 25, 283-287
Notes. 2005. Watsonia 25, 289-298
Page, C.N. 2005. Re-appearance of the rare intergeneric hybrid fern xAsplenophyllitis jacksonii Alston (Aspleniaceae) in the flora of Cornwall. Watsonia 25, 331-338
McVeigh, A., Carey, J.E. & Rich, T.C.G. 2005. Chiltern Gentian, Gentianella germanica (Willd.) Boerner (Gentianaceae) in Britain: distribution and current status. Watsonia 25, 339-367
Rich, T.C.G., Lockton, A.J. & Parnell, J. 2005. 2005. Distribution of the Irish Whitebeam Sorbus hibernica E.F. Warb. (Rosaceae). Watsonia 25, 369-380
Rich, T.C.G ., Motley, G.S. & Kay, Q.O.N. 2005. Population sizes of three rare Welsh endemic Sorbus species (Rosaceae). Watsonia 25, 381-388
French, G.C., Hollingsworth, P.M., Corner, R.W.M., Roberts, F.J. & Taylor, I. 2005. Clonal diversity in two recently discovered English populations of Carex vaginata Tausch (Cyperaceae). Watsonia 25, 389-395
Rich, T.C.G. 2005. Could Centaurium scilloides (L. f.) Samp. (Gentianaceae), Perennial Centaury, have colonised Britain by sea? Watsonia 25, 397-401
Hutchinson, G. & Rich, T.C.G. 2005. Conservation of Britain’s biodiversity: Hieracium radyrense (Asteraceae), Radyr Hawkweed. Watsonia 25, 403-407
Notes. Watsonia 25 (2005), 409-424
- Cardamine x fringsii F. Wirtgen (Brassicaceae) in the British Isles. T.C.G. Rich & D.E. Allen
- What is Rosa alba L.? R. Maskew & A.L. Primavesi
- Erica mackaiana Bab. and Erica x stuartii (MacFarl.) Mast. (Ericaceae): two heathers new to South Kerry (v.c. H1), Ireland. E.C. Nelson
- Rubus radulicaulis Sudre (Roasceae) in the Solent region. D.E. Allen
- A previously undescribed bramble Rubus sect. Corylifolii (Rosaceae) of chalky boulder clay in East Anglia. A.L. Bull & A.C. Leslie
- Hierochloe odorata (L.) Beauv. (Poaceae) - a grass new to England. M.E. Braithwaite.
Plant Records. Watsonia 25 (2005), 425-439
Obituaries. Watsonia 25 (2005), 441-444
- Joan Florence Hall (1919-2004), by Clive Stace
- Allan McGregor Stirling (1924-2004), by Peter MacPherson & Alison Rutherford
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