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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:: (Hydrophyllaceae), a Species Endemic to Serpentine Soils in Southwestern Oregon AN ABSTRACT OF THE THESIS OF J

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:: often. Ron Halvorsen, Prineville B. L.M. , provided aerial photographs and mapsof Wheeler and Wasco

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:: the translucent pods. It was not recorded again until Joseph Howell and Thomas J. Howell collected

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

Creator:: Miller, John M.
Abstract:: Claytonia perfoliata is a west-American polyploid complex of common annuals (x=6). The species is polymorphic; exomorphic characters are often variable within local populations. In a transect of the Columbia River Gorge diploids, tetraploids, hexaploids, octoploids, and decaploids were collected, which varied in shape of basal and cauline leaves, degree of...
Resource Type:: Masters Thesis
Full Text:: wishes to thank Dr. B. G. Brehm, Dr. N. I. Bishop, and Dr. H. J. Evans for advice and access to special

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