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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:: Plant Pathology presented on October 18, 1983. Title: Ecology and reproduction in Collomia macrocalyx

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:: BOTANY & PLANT PATHOLOGY presented on 1190v 4i P1 )Cfn Title: THE ECOLOGY AND REPRODUCTION OF SOPHORA

Autecology, reproductive ecology, and demography of Astragalus australis var. olympicus (Fabaceae)

Creator:: Kaye, Thomas N.
Abstract:: The goal of this study was to gather information on the autecology, reproductive ecology, and population dynamics of Astragalus australis var. olympicus as a baseline for conservation strategies and to help explain its restricted range. Approximately four thousand individuals occurred in four known population centers in the Olympic Mountains, Olympic...
Resource Type:: Masters Thesis
Full Text:: Autecology, reproductive ecology, and demography of

The gene-ecology of Crepis nana Richardson and Crepis elegans Hooker in Arctic and Alpine North America

Creator:: Legge, Allan Herbert, 1942-
Abstract:: A gene-ecological transplant study was made on populations of the Crepis nana and C. elegans complex from the Arctic and Alpine of North America. Transplants were collected from the Brooks Range, Eagle Summit, and Alaska Range in Alaska, the Rocky Mountains in Alberta, the Olympic Mountains in Washington, the Wallowa...
Resource Type:: Dissertation
Full Text:: The gene-ecology of Crepis nana richardson and Crepis

Calochortus howellii : ecology of a rare serpentine endemic, and comparison with the new species, C. umpquaensis (Liliaceae)

Creator:: Fredricks, Nancy Ann
Resource Type:: Masters Thesis
Full Text:: . Chambers The habitats and population ecology of a rare plant species of southwest Oregon, Calochortus

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:: Taxonomy and ecology of Mentzelia mollis Peck and related

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:: Robert James Meinke for the degree of Doctor of Philosophy in Botany and Plant Pathology presented on

Morphological and cytological variation in Trillium albidum Freeman (Liliaceae)

Creator:: Bledsoe, Karen E.
Abstract:: This work was performed on Trillium albidum Freeman (Liliaceae), to clarify the pattern of morphological variation between the small-flowered populations at the northern limit of its range ( T. parviflorum Soukup) and the larger-flowered populations from southern Oregon and northern California. It was hypothesized that only a single species of...
Resource Type:: Masters Thesis
Full Text:: Arts in Botany and Plant Pathology presented March 15, 1993. Title: Morphological and Cytological

Reevaluation of systematic relationships in Triticum L. and Aegilops L. based on comparative morphological and anatomical investigations of dispersal mechanisms

Creator:: Morrison, Laura A.
Abstract:: Comparative morphological and anatomical studies of the dispersal mechanisms characterizing the wheat complex (Triticum L. and Aegilops L.) have documented patterns of adaptive radiation which may have significance for evolutionary relationships. These patterns, which form an array of diverse types of diaspores among the diploid taxa, appear conceptually to have...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE THESIS OF Laura A. Morrison for the degree of Doctor of Philosophy in Botany and Plant

Biosystematic studies of Phacelia capitata (Hydrophyllaceae), a species endemic to serpentine soils in southwestern Oregon

Creator:: Shelly, J. Stephen
Abstract:: Phacelia capitata Rruckeberg is a member of the Phacelia magellanica polyploid complex (species group Magellanicae), a group of wide-ranging, polymorphic perennials in western North America related to the South American P. secunda (= P. magellanica). The purpose of this project was to determine, to the extent possible, the interrelationships of...
Resource Type:: Masters Thesis
Full Text:: . Steph n Shelly for the degree of Master of Science in Botany and Plant Pathology presented on April 11

ScholarsArchive@OSU

Ecology and reproduction in Collomia macrocalyx Brand (Polemoniaceae)

The ecology and reproduction of Sophora leachiana Peck (Fabaceae)

Autecology, reproductive ecology, and demography of Astragalus australis var. olympicus (Fabaceae)

The gene-ecology of Crepis nana Richardson and Crepis elegans Hooker in Arctic and Alpine North America

Calochortus howellii : ecology of a rare serpentine endemic, and comparison with the new species, C. umpquaensis (Liliaceae)

Taxonomy and ecology of Mentzelia mollis Peck and related species

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

Morphological and cytological variation in Trillium albidum Freeman (Liliaceae)

Reevaluation of systematic relationships in Triticum L. and Aegilops L. based on comparative morphological and anatomical investigations of dispersal mechanisms

Biosystematic studies of Phacelia capitata (Hydrophyllaceae), a species endemic to serpentine soils in southwestern Oregon

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