DANSK EXCURSIONS-FLORA 151 
erectus- radiatus Trow.” ‘2 mentioned—an siege that the book 
is up to date. For an excursion flora some of the genera are 
treated very fully; pouty Rubus, where thas species are arranged 
under nine sections, beginning with “ Cylactis” and ending with 
“Corylifolii,” and also Galiwm, the species in which are certainly 
rather difficult to define. 
A,B, 
BOOK-NOTES, NEWS, éc. 
The Pocket Synopsis of the Families of British Falta 
Plants, by W. B. Grove, M.A. (Lon ngmans, 1s. net.), 1 eatly 
printed and cheap little book, produced in sictacationt lr the 
University of Manchester. It is “ intended primarily to facili- 
ate the determination of the families of British plants by 
nado and is doubtless admirably adapted to co end; but 
r its ae es utility is questionable. A student is, we 
price—4s. net—is preposterously high) to Mr. ran phe Carter’s 
are given. But for those to whom a knowledge of the family 
suffices, Mr. Grove’s little book Des like Mr. Carter’s is based 
upon sy a System) will certainly prove ip 1. 
At the eas 2 the Linnean Sistas on March 18th, the 
Botanical Secretary briefly epitomised a paper essrs. 
J. A. Wheldon, ELS. and W. G. Travis, on the Lichens of 
h : 
and increase of population which took place in South Lancashire 
during the last century, point out the deterioration of the flora 
which ensued, and then proceed to detail the epee of their cn 
of the effects of — by coal-smoke on the cryptogami 
