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Filtering by: Alternative title ssim Geologic adventures on the lower Illinois River, southwestern Oregon Degree Field Botany and Plant Pathology File Format application/pdf

Serpentine and non-serpentine edaphic ecology and the recovery of Lomatium cookii (Apiaceae), an endangered endemic of southwest Oregon

Creator:

Silvernail, Ian S.

Abstract:

The role of unusual geologies in plant distribution and form is well-known. Serpentine (ultramafic) soils exert a particularly strong influence on plants, as evidenced by a high level of endemism and the morphological and physiological traits displayed in adaptation to the extraordinary chemistry of these substrates. Adaptation may lead to...

Resource Type:

Masters Thesis

Full Text:

Valley, with much of this on private land. In the Illinois River Valley near Cave Junction (Josephine
A taxonomic revision of Astragalus mokiacensis and allied taxa within the Astragalus lentiginosus complex of Section Diphysi

Creator:

Alexander, J. Andrew

Abstract:

North America, with over 400 species of Astragalus (Fabaceae), is one of three major centers of diversity, all of which comprise the majority of the nearly 1750 species of Astragalus worldwide. One of the most diverse species, Astragalus lentiginosus of Section Diphysi, is a polymorphic complex of over 40 varieties,...

Resource Type:

Dissertation

Full Text:

taxonomic levels. Based on the results of the chloroplast haplotype and morphological datasets, the

ScholarsArchive@OSU

Serpentine and non-serpentine edaphic ecology and the recovery of Lomatium cookii (Apiaceae), an endangered endemic of southwest Oregon

A taxonomic revision of Astragalus mokiacensis and allied taxa within the Astragalus lentiginosus complex of Section Diphysi

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