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A Revision Of The Astragalus Lentiginosus Complex For The State Of Utah, Carol Susan Schoener
A Revision Of The Astragalus Lentiginosus Complex For The State Of Utah, Carol Susan Schoener
Theses and Dissertations
The taxonomy and distribution of the Astragalus lentiginosus complex in Utah is presented. The nine varieties are listed and a key is provided which allows determination of the members of the complex in Utah. Each entity is discussed and illustrated. Two distribtuion maps are included for each variety, one showing the distribution in Utah and the other, the general range of the entity. The body of this work is based on the study of herbarium specimens and field observations and collection. These studies have resulted in the synonymizing of two varieties, the inclusion of another and one nomenclatural change.
Ecological Aspects Of Cercocarpus Montanus Raf. Communities In Central Utah, David Lee Anderson
Ecological Aspects Of Cercocarpus Montanus Raf. Communities In Central Utah, David Lee Anderson
Theses and Dissertations
Ecological and environmental aspects relating to Cercocarpus montanus Raf. Communities were investigated. Twenty study sites were sampled and described. All factors were then analyzed utilizing statistical methods. Signigicantly correlated factors to C. montanus parameters (i.e., frequency, density, cover, height) were: positive correlation--percent clay, percent clay-silt, percent litter cover, and total soluble salts in soil; negative correlation--percent silt-sand, percent sand, soil pH; exposed surface rock, Amelanchier alnifolia cover, Gotierrezia sarothrae cover and altitude. Several individual factors were singled out as being of importance in C. montanus communities; howerver, it was shown that a combination of factors was most important in determining …