Index Catalog // ScholarsArchive@OSU

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:: . hymenophyllus. 38 2-11. Young Mimulus jungennannioides plant on basalt cliff. 39 2-12. Vegetative life history

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:: vegetation history Site descriptions Morphology and life history 16 19 19 24 28 39 Morphology of the

Biosystematics of a Western North American polyploid complex in the genus aster

Creator:: Guppy, Geraldine Anne Allen
Abstract:: Species relationships were investigated in a western North American polyploid complex in the genus Aster (Asteraceae). A combination of cytological, genetical, chemical, morphological and numerical approaches was employed. Fifteen presently recognized species were included in the study, and populations were sampled throughout most of the range of the group. Living...
Resource Type:: Dissertation
Full Text:: Geber, Art Guppy, Cris Guppy, Jim Pojar, Larry Schofield and Susie Seyer. I also appreciate the

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:: completion. Comments and suggestions from Dr. Joe Antos, Dr. Larry Hufford, Teresa Magee and Dr. John

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:: number of inflorescences 10 e 8 CC 6 w O4 0 E z w 0 2 0 3 2 0 a) community a ' 0 0 0 C °O

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:: « y ,« , .. ®.. e_. , . . - .. `. V. ' O -. . Z i ' s'. MINIM 39 .. e 3 e e 34 e ti . . . S

Origin and distribution of polyploid Achillea (Compositae) in western North America

Creator:: Tyrl, Ronald J.
Abstract:: A cytogeographical study was made of populations of tetraploid (n=18) and hexaploid (n=27) Achillea millefolium (Compositae- Anthemideae) from the Pacific Coast states. There is a complex distributional pattern, involving overlapping ranges, mixed populations, migration of one form into areas occuplied by the other, pentaploid hybrids, and septaploid and octoploid plants....
Resource Type:: Dissertation
Full Text:: plants (2n°45). 10 11 S. Fork Eel R. Sacramento R. San Joaquin R. .. 11a Fresno AAA W---332

Morphogentic studies of intraspecific hybrids of Microseris laciniata (Hook.) Sch.-Bip.

Creator:: Pires, Maria Joaquina Pinheiro
Abstract:: Microseris laciniata is a perennial, self-incompatible species classified in subgenus Scorzonella. It is morphologically the least specialized species in the genus, in contrast to the members of subgenus Microseris, which are morphologically advanced, self-compatible annuals. First-generation hybrids were available from crosses involving eight populations of two subspecies of Microseris laciniata...
Resource Type:: Masters Thesis
Full Text:: expected Poisson values. 39 Ea 6o a) 0) 5o 0 cH 4o 0 O 3o as g 20 0 1.4 a) 10 0 A. % : 6o a

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:: Z0 r c i r c i 7 : i - e i " c i T J rc l .-ci 4-) - c : i P (I)di -U Lc) 0 0 0 0 o 0 0 w a on 0 cssi

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:: ArVydas Grybauskas. Mary Allcott, W. Roderick and especially James R. Griffin graciously responded to

ScholarsArchive@OSU

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

Ecology and reproduction in Collomia macrocalyx Brand (Polemoniaceae)

Biosystematics of a Western North American polyploid complex in the genus aster

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

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

Hybridization between Arctostaphylos viscida and A. canescens in Oregon

Origin and distribution of polyploid Achillea (Compositae) in western North America

Morphogentic studies of intraspecific hybrids of Microseris laciniata (Hook.) Sch.-Bip.

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

A systematic study of Lathyrus vestitus Nutt. ex T. & G. (Fabaceae) and allied species of the Pacific Coast

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