Bealls ott oe aT Sea a a is 
eA Lae Pe get oe ae, 
sate” RS aR Ey og eR SRR Ae ak amare Oe Pare eS Abbe Min ka) antes) Ss een 
1881. ] the Peach Tree affected with the “ Yellows.” g7I 
not show near as much of the fungoid growth as did the larger, 
and, indeed, I examined several sections before I found any my- 
celia at all. In both cases it was situated on the under side of the 
inner bark, next to the cambium layer, and many of the filaments 
penetrated and ramified through this layer. I also noticed, in the 
larger specimens, mycelia between the layers of wood. An exam- 
ination of the abnormal pigment spots, scattered through the pith 
and woody portions, revealed nothing but cells filled with the 
coloring matter. The outer bark in no case showed signs of any 
fungoid forms. 
3. Branches.—An examination of the larger branches revealed 
nothing at all different from that given above for the trunk of the 
tree; but some of the smaller branches and the growing ends of 
the larger or main branches, showed marked peculiarities indeed. 
In these the tissues seemed to be completely filled with mycelia, 
and in one case the bark was apparently split... The branches 
from which these specimens were taken had many abnormal 
branchlets, and hence the theory advanced in the first part of this 
Paper that these abnormal shocts were caused by the filling up 
of the tissues of the growing ends, thus turning the flow of sap 
to the lateral buds. 
he filament found in the branches was in all respects identi- 
cal with that found in the trunk of the trees, and will be described 
further on, 
4. Leaves—Those examined were mostly from the abnormal 
branchlets. The chlorophy! in all was completely disorganized, 
and in general the appearance was the same referred to by Mr. . 
Peck. It seemed at first that this must be caused by dry weather 
or lack of cultivation, but on further examination filaments of a 
fungus were found to be present, to a greater or less extent, in 
Nearly all the leaves examined. I noticed but two spores of any 
Sort in the tissues, these were teleuto-spores and without doubt — 
belonged to some leaf fungus other than the one the filaments of — 
Which were found in the tissues. On a few of the leaves sent me 
I found the fungus Ascomyces deformans, which causes the “ curl 
leaf” disease so common at the present time in many localities. 
The filaments of the fungus alluded to first, were of the 
_ Same character as those that will be described under the next 
ea 
1A friend to whom I showed this, suggested that this splitting might have been 
‘caused by the pressure of the growing mycelia within the tissues. 
