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  1. By: Mallory, James I. - Colwell, Wilmer L., Jr. - Powell, W. Robert - Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
    Publication info: Berkeley, Calif, Pacific Southwest Forest and Range Experiment Station, 1973
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Powell, W. Robert - Howard, Alice Q
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 25
    Date: 1978
    Page Range: 59--59
    Publication Info: Berkeley, California Botanical Society,