REPORT FOR THE YEAR 1870. 
By the Curator. 
I regret to have to notice this year a large increase in the pro- 
portion of non-contributing ‘members to those who send parcels. I 
would beg to suggest to the members that an increase of contributing 
members is essential to the continuance of the Exchange Club, and I 
would urge them to try and enrol new contributors among their 
friends, so as to enlarge as much as possible the area from which 
plants can be collected for distribution. Great credit, for the 
numerous interesting species sent, is due to those who have collected 
plants for the club this year, among which the following are the most 
deserving of notice : — 
Thalictrum Koc/iii, Fries. “ Loch Conn, co. Mayo ; new to the 
Irish flora.” — A. G. More. 
Nuphar pumila, DC. “ Loch Lubnaig. I do not recollect that 
this local plant has been recorded from the Loch above mentioned, 
though it has been long known to grow in the Loch of Menteith, 
in the same countv, about five or six miles distant from Loch 
Lubnaig.” — A. Craig Christie. 
Alyssum incanum, L. “ Some scores of plants were seen in two 
clover fields in Surrey, about a dozen miles apart; one being at 
Pirford, the other at Frimley. As I had never, before 1870, been 
within half a mile of either field, I cannot say whether the occurrence 
of the plant was limited to that year. Further particulars stated in 
the ‘Journal of Botany’ for December, 1870.”— H. C. Watson. 
Sisymbrium polyceratium, L. “From Clmrlestave, Fife, introduced 
with ballast ? in great quantity.” — A. Craig Christie. 
Erysimum cheirant/ioides. “ This plant is a common weed in and 
around Brixton. I have noticed it for several successive years.” — 
Augustin Ley. 
