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Filtering by: Creator Peck, Myron A. Remove constraint Creator: Peck, Myron A. Contributor advisor sim Chambers, Kenton L. Remove constraint Contributor advisor sim: Chambers, Kenton L. Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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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:

treatments of the Siskiyou area was by Peck (1940), however, his report was limited to a brief floristic
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:

. Chambers A study was made to clarify the relationships of Mentzelia mollis Peck and two poorly understood
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:

treated by Rydberg (1929) as Phaca diurna. 8 Peck (1961), following a suggestion by Barneby, placed
Hybridization between Arctostaphylos viscida and A. canescens in Oregon

Creator:

Gottlieb, Leslie D., 1936-

Abstract:

Arctostaphylos viscida Parry and A. canescens Eastw., two well-known and frequently encountered manzanitas in the Siskiyou Mountains in southwestern Oregon, are shown to hybridize and to produce an extensive series of morphological intermediates. The hybridization occurs wherever populations of these two species meet at contact zones of serpentine and non-serpentine...

Resource Type:

Masters Thesis

Full Text:

slopes and scanty soil" (Peck, 1961, p. 18). Exhibiting a complex history of uplift, sub- sidence and
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:

A revision of Juncus subgenus genuini (Juncaceae) in the
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:

June 22, 1916 by Peck (6022, WILLU), from a "(d)ry slope near Roseburg, Douglas Co." It was
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:

A Biosystematic Study of Some North American Species of
A biosystematic study in the genus Aster, section Aster, in western North America

Creator:

Dean, Milton Lee

Abstract:

A biosystematic investigation was undertaken in 15 species and three subspecies of the genus Aster, in western North America. Previous studies had been based entirely on external morphological features, and it was believed that much could be learned about the natural affinities of the taxa by exploring their cytological and...

Resource Type:

Dissertation

Full Text:

. in S stematic Botany Major (Name) (Degree) Date thesis is presented to6 Title A Biosystematic
An experimental taxonomic study of a northwest American polyploid species, Scrophularia lanceolata pursh

Creator:

Carlbom, Curt Gerald, 1932-

Resource Type:

Masters Thesis

Full Text:

An experimental taxonomic study of a northwest American
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:

of Doctor of Philosophy in Botany and Plant Pathology presented on April 19, 1977 Title: A

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Academic Affiliation

Botany and Plant Pathology14
Botany3
Botany2

Advisor

Chambers, Kenton L.19

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1964 to 1992

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Committee Member

Frenkel, Robert3
Appleby, Arnold1
Baisted, D.1
Frenkel, R.1
Grabe, Donald1
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Creator

Carlbom, Curt Gerald, 1932 2
Broich, Steven L.1
Crowder, Cheryl Alison1
Dean, Milton Lee1
Ezell, Wayland Lee, 1937 1
more Creators »

Date

Date range begin – Date range end

Current results range from 1964 to 1992

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Decade

1990-19992
1980-19895
1970-19798
1960-19694

Degree Field

Botany11
Botany and Plant Pathology8

Degree Level

Master's11
Doctoral8

Degree Name

Master of Science (M.S.)10
Doctor of Philosophy (Ph.D.)8
Master of Arts (M.A.)1

Language

English [eng]19

Non-Academic Affiliation

Oregon State University. Graduate School[remove]19

Peer Reviewed

No18

Resource Type

Masters Thesis11
Dissertation8

Rights Statement

Copyright Not Evaluated19

Subject

Agrostis1
Astragalus (Plants) -- Oregon1
Astragalus (Plants) -- Washington (State) -- Olympic Mountains1
Botany -- Classification1
Calochortus -- Varieties1
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