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Filtering by: Creator Peck, Vicky L. Remove constraint Creator: Peck, Vicky L. Advisor Chambers, Kenton L. Remove constraint Advisor: Chambers, Kenton L.

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  • Taxonomy and ecology of Mentzelia mollis Peck and related species

    Creator:
    Glad, Judith B.
    Abstract:
    A study was made to clarify the relationships of Mentzelia mollis Peck and two poorly understood taxa of Mentzelia (Loasaceae) to the other members of the genus, its sections, and its subsections, and to describe the general ecology of each taxon. Within the genus, the section Trachyphytum is characterized by...
    Resource Type:
    Masters Thesis
    Full Text:
    ECOLOGY OF MENTZELIA MOLLIS PECK AND RELATED SPECIES Abstract approved: Redacted for Privacy Kenton L

  • The ecology and reproduction of Sophora leachiana Peck (Fabaceae)

    Creator:
    Crowder, Cheryl Alison
    Abstract:
    The goal of the study was to collect data on the ecology and reproduction of Sophora leachiana in order to help explain the rarity and restricted range of this species. There are 13 known populations of S. leachiana, occurring in a 29 by 6.4 km area in the Siskiyou Mountains...
    Resource Type:
    Masters Thesis
    Full Text:
    LEACHIANA PECK (FABACEAE) Abstract approved: Redacted for Privacy Dr. Kenton L. Chambers The goal of the

  • A biosystematic study of some North American species of Agrostis L. and Podagrostis (Griseb.) Scribn. & Merr.

    Creator:
    Carlbom, Curt Gerald, 1932-
    Abstract:
    A taxonomic investigation was made of 24 taxa belonging to the section Trichodium (Michx.) Trin., of Agrostis, and the genus Podagrostis. Experimental methods were employed, including: uniform garden culture of transplants and plants grown from seeds collected in natural populations; breeding studies; physiological and phenological investigations; cytological studies; ecological studies...
    Resource Type:
    Dissertation
    Full Text:
    Agrostis L. and Podagrostis (Griseb.) Scribn. & Merr. AN ABSTRACT OF THE THESIS OF (Systematic Curt

  • A chemosystematic study of the phylogenetic position of Arabidopsis thaliana (L.) heynh. (Brassicaceae) employing numerical methods

    Creator:
    Kaplan, Hesh J.
    Abstract:
    The Brassicaceae, Mustard Family, is a well marked natural family, whose tetramerous flowers, tetradynamous stamens, and distinctive bi- carpellary fruits, clearly distinguish it from related families. It is a large family of some 3, 000 recognized species and over 300 genera. Although numerous attempts have been made over the past...
    Resource Type:
    Dissertation
    Full Text:
    CHEMOSYSTEMATIC STUDY OF THE PHYLOGENETIC POSITION OF ARABIDOPSIS THALIANA (L.) HEYNH. (BRASSICACEAE) EMPLOYING

  • Taxonomy of Phacelia section Miltitzia (hydrophyllaceae)

    Creator:
    Halse, Richard R.
    Abstract:
    A systematic study was made of the species comprising Phacelia section Miltitzia. These species, which are commonly found in the Great Basin physiographic province of western North America, are distinguished from other members of Phacelia by their yellow, marcescent corollas and their transversely corrugated seeds. This project utilized morphological, cytological,...
    Resource Type:
    Dissertation
    Full Text:
    PHACELIA SECTION MILTITZIA (HYDROPHYLLACEAE) Abstract approved: Kenton L. Chambers A systematic study

  • 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:
    Abstract approved: Redacted for Privacy Kenton L. Chdbers Eight species of Lathvrus (Fabaceae, Faboideae

  • A revision of Juncus subgenus genuini (Juncaceae) in the Pacific states

    Creator:
    Lint, Harold LeRoy
    Abstract:
    A study was made of the subgenus Genuini of the genus Juncus in the Pacific States, California, Oregon and Washington. Extensive morphological comparisons, geographical distributions, habitat differences and observations of apparent presence or absence of natural hybrids provided the major data sources. Cytological studies were made, but were inconclusive. Eleven...
    Resource Type:
    Dissertation
    Full Text:
    (JUNCACEAE) IN THE PACIFIC STATES Abstract approved: Redacted for Privacy Dr. Kenton L. Chambers A study

  • A systematic and ecological study of Astragalus diaphanus (Fabaceae)

    Creator:
    Wright, Carolyn E.
    Abstract:
    Astragalus diaphanus is a rare plant endemic to the John Day River drainage of north-central Oregon. This species has several interesting features, including the dimorphism of its fruit and its geographical isolation from the two nearest taxonomically related species, which occur in Colorado. This study addressed the species' distribution and...
    Resource Type:
    Masters Thesis
    Full Text:
    Astragalus diaphanus (Fabaceae) Abstract approved: Redacted for Privacy Kenton L. Chambers Astragalus

  • Ecology and reproduction in Collomia macrocalyx Brand (Polemoniaceae)

    Creator:
    Joyal, Elaine
    Abstract:
    Populations of Collom ia macrocalyx Brand were located and observed in order to determine the distribution, ecology, and reproductive biology of this species and probable relationships to other members of the genus. The purpose of the study was to obtain information that would explain the restricted range of the species...
    Resource Type:
    Masters Thesis
    Full Text:
    Brand (Polemoniaceae) Abstract approved: Redacted for Privacy Kenton L. Chambers Populations of

  • Systematic and reproductive studies of Mimulus (Scrophulariaceae) in the Pacific Northwest : implications for conservation biology

    Creator:
    Meinke, Robert James
    Abstract:
    The Mimulus washingtonensis complex is a group of morphologically similar species centered in the Pacific Northwest. All are rare, and most are under consideration for listing as endangered. Morphometric and pollination data were used in developing a revised taxonomy for the group. Five species and two varieties are recognized. Mimulus...
    Resource Type:
    Dissertation
    Full Text:
    Northwest: Implications for Conservation Biology. Redacted for Privacy Abstract approved: Kenton L