New Yorx AaricutturRAL ExpertmMent Station. 357 
horticulture respectively of Oregon, Washington and British 
Columbia. These gentlemen sent specimens of diseased limbs 
which upon examination were found to be attacked by an entirely 
different fungus from the one that causes the New York canker, 
the spores were small, curved and hyaline while the spores of 
Sphaeropsis are large, oval and dark brown in color. A liberal 
number of specimens were received from each of the three sec- 
tions and the fungus was the same in each case and so much in 
evidence that there can be little doubt but that it is the cause of 
the Pacific coast canker. Some of the specimens were submitted 
to Prof. C. H. Peck, State botanist, who pronounced the fungus to 
be a new species of Alacrophoma. ‘This disease because of its 
destructive nature has attracted a ereat. deal of attention for a 
number of years in thé Pacific Coast States, but no satisfactory 
method of combating it has yet been found. Since entirely dif- 
ferent climatic conditions obtain.in that part of the country it is 
not likely that the line of treatment recommended for combating 
the New York apple canker will be effective against this disease 
as it occurs on the Pacific coast. 
Fig. 1 of Plate XX XIII is from a photograph of an apple-tree 
limb showing a typical specimen of the Pacific coast apple-tree 
canker. 
THE EUROPEAN CANKER. 
Fig. 2 of Plate XX XIII shows a canker on a quince tree limb 
which was produced by the fungus, Nectria cinnabarina (Tode.) 
Fr. This shows what is known as the tubercularial or conidial 
stage of the fungus; what appear as small white bodies in the 
picture scattered over the surface of the dead bark, are brilliant 
red or cinnabar colored stromata which bear the conidia or fruit- 
ing bodies of one stage in the life history of the fungus. It will 
be seen that the comparatively large size and brilliant color of the 
stromata render the fungus conspicuous so that it is not easily 
mistaken. 
