Phylogeny and evolution of Nymphoides

Dr. Tippery continues to study the systematics of Menyanthaceae, a family of aquatic plants. There are persistent questions about the largest genus, Nymphoides, regarding the interrelationships of species, ancestral biogeography, and morphological evolution. Largely this project involves analyzing DNA sequences and other bioinformatics applications.

Genetic diversity of Phragmites australis

In northern North America there are two subspecies of the grass plant known as common reed: a native one and a non-native one. Whereas the native persists in some areas, the non-native constitutes an invasive species with the potential to disrupt ecosystem function for plants and animals. We are using genetic (DNA-based) methods to ascertain the genetic diversity of these subspecies in Wisconsin and beyond.

Fassett's Locoweed

We study annual and long-term population dynamics of a state endangered plant, Fassett's Locoweed (Oxytropis campestris var. chartacea) in central Wisconsin.

Floristic surveys

Students work on projects dealing with local plants, including surveying for species abundance, evaluating habitat restoration projects, and characterizing plant communities.

Electron microscopy

Interested students may be able to use the Scanning Electron Microscope (SEM) located in Upham Hall. Previous students have examined the surface morphology of Nymphoides seeds and the effects of desiccation on genetically engineered fruit fly (Drosophila) cells.

Aquatic plant systematics

Dr. Tippery continues to investigate the origins, diversity, and adaptations of aquatic plants worldwide.