DISEASES OF TAXODIUM AND LIBOCEDRUS. 69 
Mr. A. J. Johnson, and a number of lumber companies in 
California, Oregon, and Washington. The disease is one 
which resembles the one in the cypress in its method of 
growth. The decay begins somewhere in the upper part 
of a tree and proceeds both up and down, the lens-shaped 
cavities appearing at first as darker areas in the wood. 
Older trees are very liable to be diseased. One correspond- 
ent, from southern Washington, says: ‘* The proportion 
of trees affected is very large. We might almost say that 
the trees are generally so affected in this country.’’ From 
Placer Co., Cal., another correspondent writes: ‘* Probably 
more than one-half of the trees are affected in a greater 
or less degree.’’ From intermediate points similar reports 
have been received. Young trees, i. e., such as are under 
12 inches in diameter, are not apt to be seriously diseased. 
Climatic and soil conditions seem to have as little influence 
on the prevalence of the disease, as they do in the case of 
pecky cypress. Wherever Libocedrus decurrens grows, 
the defect is also to be found, i. e., from central California 
northward, as far as it has been possible to learn. The 
diseased wood is quite durable and can be used for fence 
posts, scantling, or for wood sills in buildings. The 
diseased wood is sold for $1-$3 less than sound cedar, 
per thousand ft. B. M., depending upon the degree 
of decay. This is an indication that it is at least 
capable of being used for some purposes. It might 
be mentioned here that boards cut from trees of Juni- 
perus Virginiana affected with a similar disease were 
recently pulled off a barn where they had been 52 years. 
The Stimson Mill Co., of Ballard, Wash., writes: «* We 
do not make any difference between sound and rotten 
cedar; $8 is the price for cedar delivered.’’ 
NAME, 
The only name which has been learned which is applied 
to this disease is ‘* pin rot.” The term ‘ pecky ”’ has 
47 
