by David L. Kulhavy
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Wilderness and Natural Areas in the East...
Forest Insect Alphabet
Red-cockaded woodpecker
Southern pine beetle
Cone serotiny of lodgepole pine near Isl...
Reproduction of conifers
Insectos de conos y semillas de las coni...
1949 cone crop survey report
Spruce cone rust
Pine cones and other natural pods and ma...