SELECT CARNATIONS, PICOTEES, AND PINKS. 257 
GREEN MOSS ON TREES. 
BY A NURSERYMAN’S TRAVELLER. Pd 
In discharging the duties of the office I sustain, I have annually to 
travel through every county in Great Britain ; this affords me numerous 
opportunities of noticing what comes under my view. 
I was very much surprised the past season to observe, in many 
instances, the unsightly appearance of both trees and shrubs in the 
immediate connexion of the mansions of the proprietors, even in the 
pleasure garden, shrubbery, &c., by being covered with a green powder 
which eventually becomes Moss. This was the more prevalent in low 
confined situations, but in higher sandy lands I saw many instances of 
the same defect. Now, it is very obvious, that where this green 
powder and Moss exist, as I above describe, it must close up the pores 
of the plant, and thereby prevent the vessels from being acted upon by 
the external air, &c. I likewise think it receives nourishment by ex- 
hausting the sap in the bark, which I perceive first begins to crack, 
and afterwards die and fall off. Iam more confirmed in this opinion 
by having seen an experiment tried to destroy it; this was done by 
using the common solution of soft soap and sulphur-vivam mixed with 
boiling lime water till it became of the consistency of paint. This, 
when cold, was applied with a paint brush to part of the branches of a 
young tree that were covered with this green mould, yet the bark was 
free from cracks. The bark of the portion thus dressed, in a short 
time, became quite clear, and entirely free, whilst the remainder of the 
tree was clothed in its green garb. 
I very strongly advise all gardeners who have trees, shrubs, &c., 
infested in the way I deplore, to give them a sprinkling once or twice 
in the winter season, and I doubt not that it will answer their highest 
expectation. 
I think such attention is very desirable on all ornamental trees, 
shrubs, roses, &c. 
I saw some young plantations of forest trees perishing by the in- 
jurious effects of the pest, although they appeared to have only been 
planted three or four years, and with the exception of the then sum- 
mer’s green shoots were wholly covered with it. When the trees were 
wet in the winter season, if a good sprinkling of lime dust were thrown 
over them, I am of opinion it would destroy the Moss, &c., and the 
trees would be free for years to come, if not for the rest of their 
growth. I saw an experiment of it, which, in the case of some 
standard roses, not only was effective when first applied, but ever since 
they have been quite free and healthy, whilst shrubs of other kinds 
around have been, and still are, infested, where the remedy had not 
been used. 
SELECT CARNATIONS, PICOTEES, AND PINKS. 
Havine attended nearly all the principal shows of florists’ flowers 
during the past season, as usual, we took notes of all the best we saw, 
these were the following :— 
Vou. xvir. No, 34.—N.S, s 
