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Morphometric Study Of Variation In The Genus Galeopsis (Lamiaceae), Michael T. Hughes

Masters Theses

The genus Galeopsis L. of the family Lamiaceae, also known as hemp-nettle, grows naturally in Europe and Asia, with four species naturalized in North America. The number of real species is in doubt, because of conflict over whether certain taxa are species, subspecies, or synonyms. The genus consists of five to eight taxa. I studied flower and leaf size ratios to clarify the distinctions of taxa in Galeopsis. These data were analyzed statistically, using cluster analysis, Principal Components Analysis (PCA), and Analysis of Variance (ANOVA). The results indicated that although some measurements, such as leaf width in G. angustifolia, …

Survey Of Medicinal Herbs Of Central Illinois Prairie And Woodlands, Debra Ann Welch

Masters Theses

Illinois has been named the "Prairie State" for good reason. When the pioneers discovered a vast sea of grasses and forbs, they thought the prairie infertile. However, they soon found out that the blacksoil prairie was composed of a rich diversity of plant species that could provide much of the medical and nutritional needs of everyday life. The medicinal uses of many prairie species have not only been tested throughout history, but today modern science has also discovered their therapeutic importance.

The purpose of this study was to survey prairie species growing in the central Illinois counties of Coles and …