Observations on the formation of zone lines in wood by Poria weirii
By: by E.E. Nelson.
Series: USDA Forest Service research note PNW -- 210.
Publisher: Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1973
Place of publication: Portland, Ore
Language: eng
Subjects: Phellinus weirii.; Fungal diseases of plants.; Wood -- Deterioration.
Notes: Caption title.

"November 1973."

Includes bibliographical references.