Also Buls.

32, 114, 214, 266.
Meineoke, E.P.: Forest tree diseases common in California and Nevada, U.S.Forest Service, Washington, D.C., 1914.
Hartig, R.: The diseases of trees.

London and New York, 1894.] Fungi are responsible for almost all decay of wood.

So far as known, all decay is produced by living organisms, either fungi or bacteria.

Some species attack living trees, sometimes killing them, or making them hollow, or in the case of pecky cypress and incense cedar filling the wood with galleries like those of boring insects.