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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Horton, Jerome S. (Jerome Sweet), - Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
    Publication info: Berkeley, Calif, Pacific Southwest Forest and Range Experiment Station, [1960]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: California  Ecological zones  Phytogeography  Plants  San Bernardino Mountains  Vegetation classification