Contents of Vol. 19 of Watsonia. Papers only, excluding notes, Plant Records and Obituaries. Papers are provided here free for personal use, but remain copyright of the BSBI and may not be reproduced or sold without permission.

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Proctor, M.C.F. & Groenhof, A.C. 1992. Peroxidase isoenzyme and morphological variation in Sorbus L. in South Wales and adjacent areas, with particular reference to S. porrigentiformis E.F. Warb. Watsonia 19, 21-37. pdf 4.26Mb.

Rich, T.C.G. & Woodruff, E.R. 1992. Recording bias in botanical surveys. Watsonia 19, 73-95. pdf 12.47Mb.

Roper, P. 1993. The distribution of the Wild Service Tree, Sorbus torminalis (L.) Crantz, in the British Isles. Watsonia 19, 209-229. pdf 4.3Mb.

Showler, A.J. & Rich, T.C.G. 1993. Cardamine bulbifera (L.) Crantz (Cruciferae) in the British Isles. Watsonia 19, 231-245. pdf 3.29Mb.

Foley, M.J.Y. 1993. Orobanche reticulata Wallr. populations in Yorkshire (north-east England). Watsonia 19, 247-157. pdf 2.41Mb.

Clement, E.J., Gardner, M.F. & Knees, S.G. 1993. Skunkweed (Navarretia squarrosa (Eschsch.) Hook. & Arn.) and other Polemoniaceae in Britain. Watsonia 19, 259-263. pdf 572kb.