198 
Bristol Botany in 1915 anb 1916, 
By Jas. W. White, F.L.S. 
THE lengthy list that follows embraces a number of rare 
and attractive species. Of these no fewer than four are 
additions to the district flora. Together with those brought to 
light in 19 14 these additions raise the number of plants (other 
than aliens) included in the Flora of Bristol to a total of 1184. 
Ranunculus peltatus x trichophyllus. Excellent examples of 
this rare and remarkable hybrid (as I judge it) were obtained 
from a pond on Brimscombe Farm, between Chipping Sodbury 
and Wickwar. Besides the presumed parents no other water- 
buttercup was present. The peltatus plant is undoubtedly 
nearest that form of the aggregate usually referred to 
R. floribundus Bab. 
Ranunculus sardous Crantz. (R. hirsutus Curtis,). In Rep. 
Watson Exch. Club, 1914 — 1915, Mr. A. J. Wilmott comments on a 
contribution collected by Miss Roper in the mill-yard by Portis- 
head Dock ; and gives reasons for believing the specimens to 
belong to the closely allied R. trilobus Desf., an alien species 
from the Mediterranean region in which the carpels are tuber- 
cular all over both faces, not merely with a marginal ring of 
tubercules as in R. sardous. An examination of my own 
examples from Bristol rubbish-tips and waste ground reveals 
that some of them are really R. trilobus. 
Helleborus viridis L. Miss Roper (Journ. Bot. LIU., p. 113) 
draws attention to a form of Green Hellebore, in which the 
sepals are blotched with purple at their base, that exists at 
Winterhead Farm, one of the Bristol stations for this plant. 
The only other known instance of the occurrence of a purple- 
spotted state appears to be one reported from Surrey by Mr. 
C. E. Salmon ; and no mention of such a variation can be found 
in any botanical work. 
H. fcetidus L. New stations for the Stinking Hellebore are 
at Willis' Brake, near Ridgeway, Glouc; and in Somerset on 
Wavering Down above Compton Bishop, Dr. Wiglesworth. 
Viola odorata L. var. prcecox Gregory. So early as the 
second week in January Miss Roper pointed this out to me on 
Tickenham Hill, S., whence a specimen forwarded to Mrs. 
Gregory was accepted by her " without hesitation." 
Barbarea arcuata Rchb. Mention is made in Fl. Brist. of a 
peculiar form of Yellow Rocket, with spreading arcuate pods, 
gathered by the author many years ago in a marshy spot by 
Stapleton Bridge, G. This has now been identified as the 
B. arcuata of Reichenbach. 
