35 



Willi MiJil. sicm is down Jicrc; scdiicw licic, down bdow ;ill IIm-sc 

 (IcjKJ Icjivrs. TIimI ;i|)|)li('s (o lookiii;^ I'oi* I lie «lis('jis(' on (Ik; tree, 

 oi" on (he s|»ronl.s or .siickcis wliicli in;iy comic nj> Iroin tlie base 

 of a (ree. 



No. 17. In very y«niii<; iinrscry stock, or the yoiinji; sprouts 

 w liicli conic np from Ji tree, or the viji.oroiis jj;r<)\vth on a tree, on 

 I lie Iwiji's Jit least, wc ot'leii jiet this type of the disc^ase at its very 

 hciiinninu-. This is oltcii more l)rilliaiilly colored Ihan shown in 

 I his view. It is very conspicuous indeed, particularly ou nursery 

 slock. Al(hou2:h tlie view does not show any fruiting pustules 

 at all, )»y cuttin<; into that area we get the characteristic mottled 

 luyceliiini or vegetative stage of the fungus beneath the bark. 



No. 18. Now we have a branch which shows tlie withered and 

 yellowish leaves. This yelloAV color follows along after the pale 

 green color. It is not a pure yellow, as a rule, although some- 

 times it has been quite strikingly of a pure yellow color. You 

 will notice that the leaves wither after awhile; that is, they 

 crumple up after a time and that crumpling is shown, to a certain 

 extent, in this view; and also the yellow color. 



No. 19, A little later we have the deeper color. This shows 

 the browner coloration around the margin of the leaves. At the 

 left we have two leaves wliich show merely the beginning of the 

 discoloration. At the right the leaf is somewhat crumpled, bent, 

 and discolored. 



No. 2(1. This is a stage much the same as that of the little 

 branch wliicli was siiown thi'ce views back, this showing a larger 

 view of the same thing. 



No. 21. Finally the leaf assumes a somewhat brownish tint, 

 which is shown here. The leaves in this condition are often more 

 crumpled and curled up than shown here. These two leaves have 

 been flattened out somewhat so as to show the color. 



No. 22. Now to take some of the woodland views, to show 

 how the disease looks in the landscaj)e. Here is a large tree 

 which, owing to lack of special instruction as to the coloring of 

 it, lacks one or two features wliich it ought to have. For instance, 

 this branch up here, and that whole branch (indicating), ought 

 to have shown the yellow brown color. The coloring, however, 

 was not noticed in time to give instructions in regard to it. This 

 view, however, is shown primarily to represent the type of tree 



