INTRODUCTION TO VOLUME III 
THE CAMBRIDGE BRITISH FLORA 
We need scarcely say that for the delay in the appearance of the present volume III the printers 
and publishers are in no ways to blame. It is expected that volume IV will appear next, containing the 
families (Engler’s arrangement) Brassicaceae (or Cruciferae ) to Saxifragaceae inclusive. Volume V will 
be devoted to the Rosaceae. 
Specimens for Drawing 
Our thanks are due to the following ladies and gentlemen who kindly sent specimens to 
Mr Hunnybun for drawing: — 
Mr R. S. Adamson, Mr W. B. Barrett, Mr S. H. Bickham, Mr G. Bonner (Keeper of Rochester 
Castle), Miss L. Burton, Miss R. Cardew, Mr W. G. Clarke, the late Mr W. H. Cook, Mr R. H. Cor- 
storphine, the late Mr H. Cranfield, Mr J. Cryer, the late Mr F. H. Davey, the Rev. F. G. Ellerton, 
the Rev. E. Ellman, Mr A. H. Evans, Mr G. E. Fulleylove, Mr S. Guiton, the late Mr W. H. Ham- 
mond, Mr F. J. Hanbury, Mr W. P. Hiern, the late Mr T. Hilton, Mr E. M. Holmes, Mr A. Hosking, 
Mr J. H. Howgate, Mr S. Hunt, Miss C. E. Larter, the Rev. E. F. Linton, the late Rev. W. R. Linton, 
Mr J. E. Little, Mr J. Gordon McDakin, Mr E. D. Marquand, the Rev. E. S. Marshall, Mr W. F. 
Miller, the late Mr J. Needham, Mr P. O’Kelly, Mr R. Lloyd Praeger, Mr H. W. Pugsley, Miss A. 
Redmayne, the late Mr Clement Reid, Mr C. E. Salmon, Mr A. S. Shrubbs, Mr A. M. Smith, Mr Magnus 
Spence, the Rev. S. Streeten, Mr R. F. Towndrow, Mrs L. Vernon, Mr C. C. Vigurs, Mrs M. Wedg- 
wood, Mr J. A. Wheldon, Mr A. Wilson, and, for specimens from botanical gardens, to the Curators of 
the Royal Botanic Gardens at Edinburgh (Professor I. Bayley Balfour) and of the University Botanic 
Gardens at Cambridge (Mr R. I. Lynch). 
Time of Flowering of Species 
In giving the time of the flowering or fruiting of the species in the British Isles, the following plan 
is adopted. In the case of species which occur in Cambridgeshire or the adjoining counties the time 
is given when the plants may normally be expected to be in flower or fruit in their localities near 
Cambridge, no matter how wide the range of such species may be : hence a species which occurs in 
Cambridgeshire and extends northwards to — say — Caithness-shire, might be in flower or fruit in its 
northern stations long after the time mentioned in the body of this work. In the case of the more 
restricted species which do not occur in Cambridgeshire or the adjoining counties, the time of flowering 
or fruiting given represents the time when the species would be in that condition at their most southern 
extremity of distribution. Finally in the case of species confined to a single county, the time given 
represents the time of flowering or fruiting of the species in that county. This plan is adopted to avoid 
the anomaly of giving a generalised and more or less meaningless flowering or fruiting period in the 
case of widely distributed species in a country like the United Kingdom of Great Britain and Ireland 
where there is a very considerable degree of climatic variation. 
Spelling of the names of British counties 
There is some diversity with regard to the spelling of the names of several British counties. We 
adopt the spelling used in the official publications and maps of the Ordnance Department, Southampton. 
This spelling is identical with that given by us in a short article in The Journal of Botany for November, 
1 91 1 (pp. 338-341). 
