Flowers and Insects in Great Britain. 
Part III. 
Observations on the most Specialized Flowers 
of 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. 
W E now publish our observations on the fertilization, 
about Clova in the Eastern Grampians, of the flowers 
specially adapted for the visits of bees and butterflies *. The 
next part of our paper will complete the series, and will 
terminate with a general review. 
Class F § n. Suited for Diurnal Lepidoptera. 
91 . Silene acaulis, Linn. [Lit. Brit ., Wilson 2567 ; Arct. 
7, 34, 36, 38 ; Aurivillius 78 ; Axell 81 ; Alps 2, 9, 21 b, 34 ; 
Ricca 2071 ; Pyren. 17.] A marked Lepidoptera-flower at 
Clova as in the Alps and Pyrenees, Bombi having only been 
recorded as visiting it in Arctic regions. The flowers are 
polygamo-trioecious, the hermaphrodite condition being 
common, and fruit ripening very abundantly. The perfect 
flowers are proterandrous. The larger flowers have a breadth 
1 Pt. I (Lowland flowers), Ann. of Bot. 1895, p. 227 ; II (Clova), do. 1903, p. 313. 
[Annals of Botany, Vol. XVII. No. LX VII. June, 1903,] 
