THE BOTANICAL EXCHANGE CLUB 
OF THE BRITISH ISLES. 
NOTES ON THE PLANTS GATHERED IN 1879. 
Thalictrum Kochii , Fries, and T. saxatile , DC. Dr. J. T. Boswell 
sends cultivated specimens from Balmuto, Sept., 1879, with the 
following note : — “ These specimens are cultivated, the first from 
Sweden, sent by Dr. Ahlberg, of Upsal, the second from the 
Gogmagogs, Cambridge, collected by myself in 1863. They differ 
only in the fruit, which is smaller and shorter, in proportion to its 
length, in the Swedish plant. Unless the fruit be perfectly ripe it 
alters its shape in drying, so that it is almost impossible to name 
Thalictra unless one has the plants in cultivation, for by the time 
the fruit is quite ripe the specimens are too far gone to dry for the 
herbarium. I have some doubts as to the occurrence of Thalictrum 
Kochii in Britain.” Prof. Babington writes : — “ I do not clearly 
understand. Does Dr. Boswell consider Swedish T. Kochii as the 
same as my T. saxatile ? And yet he doubts Kochii being a native 
of Britain. What I consider as Kochii is a very large and distinct 
plant from saxatile .” Dr. Boswell subsequently adds that “ T. 
Kochii is a plant closely resembling T. saxatile , Babington ; but with 
smaller and rounder achenes. I have not seen any British specimens 
of it. It is far nearer the Cambridge (Little Trees Hill) T. saxatile 
than T. flexuosum. I have cultivated T. saxatile from roots collected 
in the station shown me by Professor Babington, for seventeen years, 
and the flowers are drooping, as in minus, flexuosum, and Kochii” 
Ranunculus trichophyllus , Chaix. Mr. Brotherston sends two 
or three plants, with the following note : — “ Ranunculus trichophyllus 
to radians. Pond at Floors, Kelso, Roxburgh, June 9 and July 3, 
1879. The specimens show conclusively the connection between 
R. trichophyllus, Chaix. and R. radians, Revel (Hiern’s Mon.). In 
the report of the Exchange Club for 1876, p. 6, it was named 
R. Godronii by Prof. Babington and Dr. Boswell, although Dr. Boswell 
named the same plant radians in April, 1876. In Hiern’s key to the 
forms, the hairs on the underside of the floating leaves are given as a 
character of radians, those of Godronii being glabrous, while in the 
note referred to in B.E.C. Report, 1876, these hairs are mentioned as 
being a distinctive mark of Godronii. I should much like this point 
