160 BOTANICAL INFORMATION. 
pheenogamic or cryptogamic plants, and we have reason to 
believe, that during the two last seasons, he has distributed 
more than 30,000 specimens; so that he cannot fail to have - 
much assisted in promoting the good cause of Botany. 
During the ensuing summer, he intends to add to his stores, 
by collecting in the mountains of Clova, Braemar and Cairn- 
gorum, those old and favourite haunts of his predecessors, 
and he is now desirous of receiving the names of subscribers 
to extensive sets of specimens, which will be gathered during 
the present year, of Scottish Phenogamic and Cryptogamic 
Plants, including as many of the rarer ones as possible; 
carefully selected and prepared, with the names and loca- 
lities attached. Each set will contain 500 specimens, and be 
offered at the moderate rate of £2. Mr. Gardiner will be 
glad to receive the names of any persons who may wish to 
subscribe. His address is 40, Overgate, Dundee, N.B. 
Swiss LICHENS. 
We have elsewhere,* and with much praise, noticed the 
publication of the valuable “ Lichenes Helvetici Exsiccati” 
of our friend, Mr. Scherer; we have just received the con- 
tinuation, as far as Fasc. XVIII, inclusive, which €x- 
tends to 450 species. This work, we presume, is now 
completed, for it is accompanied by the second part of 
the * Lichenum Helveticorum Spicilegium ; continens Sec- : 
tiones VII—XII, illustrantes Lichenum exsiccatorum fas- —— 
ciculos XIII—XVIII ;" and this Spicilegium is brought te: n 
a close with a very copious Index. This is a work which » 
deserves to be in the hands of every student of the Lichens, —. 
and we believe that Mr. Ackerman is the agent for the: — 
sale of it in this country. a 
* In the English Flora, Vol. V. Part I. p. 140, and in the first volume 
of the Journal of Botany, p. 182, ee 
