United States
Department of
Forest Service

Bulletin Number 419

April 1979

Tree Decay


Table of Contents

Figure 1.

An Understanding of Site Relationshops
An Understanding of Gradations
Microorganisms Become Established in Succession
Tree Compartments
The Classical Concept of Tree Decay
The Expanded Concept of Tree Decay
Patterns of Compartmentalization and Successions
Wounds are of Two Major Types
Patterns of Discolored and Decayed Wood
Some Variations and Exceptions
Additional Details on the Expanded Concept of Tree Decay
Wood is Altered By Microorganisms
Series of Paintings - Into a Tree - Through a Wound
Series of Paintings II
In The End

Watercolor illustrations by
David M. Carol
Warner, New Hampshire
For sale by the Superintendent of Documents, U.S. Government Printing Office
Washington D.C. 20402
Stock Number 001-000-03937-7

Formatted for the Internet - August 1997