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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:: Pacific states AN ABSTRACT OF THE THESIS OF Harold LeRoy Lint for the degree cf Doctor of Philosophy

Physiological ecology and structure of benthic communities in a woodland stream

Creator:: Reese, Weldon Harold
Abstract:: This thesis reports a portion of a general ecological study of a stream under conditions of controlled flow and low levels of organic enrichment. It is concerned with the effects of experimental variations of light intensity and concentration of soluble organic enrichment imposed on seasonal variations of temperature and total...
Resource Type:: Dissertation
Full Text:: in a woodland stream AN ABSTRACT OF THE THESIS OF Weldon Harold Reese for the Ph. D in Botany

Spatial and chronological patterns of Purshia tridentata as influenced by Pinus ponderosa overstory

Creator:: Sherman, Robert James
Abstract:: Twelve sites of uniform topography and soils were selected in the Pinus ponderosa/Purshia tridentata/Festuca idahoensis Association. These sites were located in the rain shadow on the east flank of the Oregon Cascades. A fire history in the form of fire scars on ponderosa pine was available for nine of these...
Resource Type:: Masters Thesis
Full Text:: Influenced By Pinus Ponderosa Overstory AN ABSTRACT OF THE THESIS OF ROBERT JAMES SHERMAN for the M. S

Spatial and developmental patterns of the vegetation of Black Butte, Oregon

Creator:: Sherman, Robert James
Abstract:: Black Butte presents a unique natural laboratory for ecological study. It is a volcanic cone of uniform configuration located in the rain shadow on the east flank of the Oregon Cascades. Soils are of very recent origin with no obvious development of horizons. Physical and chemical analysis revealed little dissimilarity...
Resource Type:: Dissertation
Full Text:: Abstract approved: AN ABSTRACT OF THE THESIS OF ROBERT JAMES

Diseases of western sword-fern Polystichum munitum (Kaulf.) Presl.

Creator:: Sandeno, James Louis
Resource Type:: Masters Thesis
Full Text:: , for his guidance and encouragement during the preparation of this study . Thanks also to Dr . H. J

A contribution toward a bibliography of Oregon botany with notes on the botanical explorers of the state

Creator:: Osborn, Katherine H., 1906-
Resource Type:: Masters Thesis
Full Text:: located by Dr. Roderck Sprague. Bay, J. Christian. Bibliographies of botany. Progressus rei Botanicae

Plant materials for high school biology courses

Creator:: France, Emilie Margaret
Resource Type:: Masters Thesis

Some characteristics contributing to the establishment of rabbitbrush, Chrysothamnus spp.

Creator:: McKell, C. M.
Resource Type:: Dissertation
Full Text:: J. McKe3i. A CK.O'1LFDCFNTS I dsh to cxoross my sincere thanks to Dr. i"illiaiu . Chilcoto

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:: Juniper Grade. H. J. Thompson (personal communication) collected dry seeds from plants he identified as

Requirement for the growth and maintenance of Alphanizomenon flos-aquae in culture

Creator:: O'Flaherty, Larrance Michael
Abstract:: Aphanizomenon flos-aquae from Upper Klamath Lake, Oregon was introduced into culture in a precipitate -free medium developed by modification of McLachlan's ASM medium. This medium ASMT No. 8 contained no organic substances other than ethylendiaminetetraacetate (EDTA) and Trishydroxymethylamino methane (Tris), and was developed by modifying the concentrations of certain elements,...
Resource Type:: Masters Thesis
Full Text:: light and electron microscopy of Aphanizomenon by Bowen and Jensen (3) has indicated that the vacuoles

ScholarsArchive@OSU

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

Physiological ecology and structure of benthic communities in a woodland stream

Spatial and chronological patterns of Purshia tridentata as influenced by Pinus ponderosa overstory

Spatial and developmental patterns of the vegetation of Black Butte, Oregon

Diseases of western sword-fern Polystichum munitum (Kaulf.) Presl.

A contribution toward a bibliography of Oregon botany with notes on the botanical explorers of the state

Plant materials for high school biology courses

Some characteristics contributing to the establishment of rabbitbrush, Chrysothamnus spp.

Taxonomy and ecology of Mentzelia mollis Peck and related species

Requirement for the growth and maintenance of Alphanizomenon flos-aquae in culture

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