526 THE BOTANICAL EXCHANGE CLUB OF THE BRITISH ISLES. 
rather dealing with morphology than the systematic side of Bo- 
tanical research. 
Catalogue of Hardy Trees and Shrubs growing in the 
Grounds of Syon House, Brentford, by our Member, A. Bruce 
Jackson. Newman and Co., London. 
Synopsis der Mitteleuropaischen Flora. Vol. IV. con- 
tinued. Ascherson and Graebner. Salicacere — Betulaceaj, Aug. 2, 
1910, pp. 321 — 400. In this the Birches stand as Beiula verru- 
cosa, Ehrh., and B. piibescens, Ehrh. (^B. alba, L. = B. tomentosa, 
Reit and Abel). Vol. LXVI., Leguminosae continued. March, 1910, 
pp. 1009 — 1093. 
A Check List of Lincolnshire Plants, by our member. 
Rev. E. A. Woodruffe Peacock. Goulding, 20 Mercer Row, Louth. 
Common Weeds of the Farm and Garden, H. C. Long 
and Prof. J. Percival, 8vo., pp. xviii. 451, fig. 106. Smith, Elder 
and Co., London. 6s. 
COLONSAY, one OF THE HEBRIDES, ITS PLANTS, ETC. Murdoch 
McNeill, D. Douglas, Edinburgh, sm. 8vo., pp. x. 216, 1910. 
580 species, 70 varieties of plants noted. 2s. 6d. net. 
A Guide to the Natural History of the Isle of Wight. 
Edited by Frank Money, F.L.S., pp. xx. 560. The County Press, 
Newport, 1909. 85. 6d. net. 
New Phytologist, March and April, 1910. The Woodlands 
of England, C. E. Moss, W. M. Rankin and A. G. Tansley, 36 
pages. 
VioLAE Europaeae, Systematische Bearbeitung der Violen 
Europas und seiner benachbarten Gebeite. Von Wilhelm Becker, 
Dresden, pp. 148, 1910. 
This is a concise monograph of the European violets — much 
too concise in every way ; probably some Reviewers would call it 
masterly, since it ignores many difficulties, sinking under one or 
two names all our Melanian Pansies. The distribution too is very 
imperfect, Britain being often ignored, even when the author has 
actually named specimens in my English herbarium. Nor does he 
once refer to Mrs. Gregory or indeed acknowledge having seen 
