Flowers and Insects in Great Britain 
Part II 1 . 
Observations on the Natural Orders Dipsaceae, Plumb a- 
ginaceae, Compositae, Umbelliferae, and Cornaceae, 
made in the Clova Mountains. 
BY 
J. C. WILLIS, M.A., 
Director of the Royal Botanic Gardens , Ceylon. 
AND 
I. H. BURKILL, M.A., 
Assistant Reporter on Economic Products to the Government of India. 
I N Part I of this series 1 we described the results of work in 
the more southern and lowland districts of Britain; the 
present and following papers deal with the flowers and insects 
of a definite area in the Eastern Grampians of Scotland, and 
form a contribution to the study of the problem of the com- 
position, distribution, and origin of the flora of that region 
and its interdependence with those of the insect fauna. 
Numerous factors have been active in producing the present 
phenomena of the vegetation of Northern Europe, and among 
them the floral ecology of the plants concerned has doubtless 
been one of much importance ; its share may best be deter- 
mined by comparative work upon limited areas in different 
parts of Europe. 
Our observations were made during vacations spent at 
Clova between 1894 and 1899. We selected Clova for our 
1 Pt. i, see Ann. of Bot., vol. ix, p. 227, 1895. 
[Annals of Botany, Vol. XVII. No. LXVI. March, 1903.] 
Y 
