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    Author(s): Thornton T. Munger
    Date: 1947
    Source: PNW Old Series Research Notes No. 39, p. 1-4
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (400 KB)

    Description

    Ponderosa pine occurs over a wide range--from the Great Plains to the Pacific and from British Columbia to Mexico. Within this range there is great variation in the form and life habits of this tree. It has been long recognized that "regional races" or strains are present. Some of these regional races have been recognized by some botanists as varieties, such as var. scopulorum or var. benthamiana.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Munger, Thornton T. 1947. Growth of ten regional races of ponderosa pine in six plantations. PNW Old Series Research Notes No. 39, p. 1-4

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