Search Constraints

Start Over
Filtering by: Creator Watson, Sawyer Remove constraint Creator: Watson, Sawyer Degree Field Botany and Plant Pathology Remove constraint Degree Field: Botany and Plant Pathology Degree Level Doctoral Remove constraint Degree Level: Doctoral

Search Results

  • A systematic study of Lathyrus vestitus Nutt. ex T. & G. (Fabaceae) and allied species of the Pacific Coast

    Creator:
    Broich, Steven L.
    Abstract:
    Eight species of Lathvrus (Fabaceae, Faboideae) endemic to the Pacific Coast of North America were the subject of a systematic investigation. Taxa studied included Lathvrus vestitus, Nutt. ex T. & G., L. laetif lorus Greene, L.. iepsonii Greene, £,. splendens Kellogg, L. polvphvllus, Nutt. ex T. & G., L. holochlorus...
    Resource Type:
    Dissertation
    Full Text:
    was that of Torrey and Gray (1838). Watson (1876) listed 13 species native to North America while 18

  • Fescue taxonomy in the Pacific coast states

    Creator:
    Wilson, Barbara L.
    Abstract:
    Accurate taxonomy is essential to preservation and management of native grasses. Four problems in fescue taxonomy were investigated: the identity of the native fescue that dominates western Oregon and Washington prairies, the relationship of native Festuca roemeri to closely related grasses, the status of F. howellii and F. washingtonica, and...
    Resource Type:
    Dissertation
    Full Text:
    three of the alpine taxa as F. ovina var. brevifolia (S. Watson) Hackel and F. ovina var. tvdbergii St

  • Genomic Investigations of Diversity within the Milkweed Genus Asclepias, at Multiple Scales

    Creator:
    Weitemier, Kevin A.
    Abstract:
    At a time when the biodiversity on Earth is being rapidly lost, new technologies and methods in genomic analysis are fortunately allowing scientists to catalog and explore the diversity that remains more efficiently and precisely. The studies in this dissertation investigate genomic diversity within the milkweed genus, Asclepias, at multiple...
    Resource Type:
    Dissertation