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Filtering by: Creator Putnam, Emily M. Remove constraint Creator: Putnam, Emily M. Academic Affiliation Botany and Plant Pathology Remove constraint Academic Affiliation: Botany and Plant Pathology Decade 1960-1969 Remove constraint Decade: 1960-1969

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  • A biosystematic study in the genus Aster, section Aster, in western North America

    Creator:
    Dean, Milton Lee
    Abstract:
    A biosystematic investigation was undertaken in 15 species and three subspecies of the genus Aster, in western North America. Previous studies had been based entirely on external morphological features, and it was believed that much could be learned about the natural affinities of the taxa by exploring their cytological and...
    Resource Type:
    Dissertation
    Full Text:
    - 161I 438 Oregon: Union Co., ca. 12 mi. N of La Grande on Mt. Emily Lookout road. 2n = 161I, 1B 462