Peer interviewing: a student health survey on an urban campus.

To gain information about university students' health concerns and awareness of campus health center services, the author used peer interviewing as a method particularly suited to an urban campus. Sixty volunteers fanned out across campus to interview fellow students in the midst of their normal activities in an effort to reach a broad cross-section of the campus population. The volunteers conducted almost 600 interviews with peers at a sample of campus locations.

GENETIC CONSEQUENCES OF RARITY IN ASTER FURCATUS (ASTERACEAE), A THREATENED, SELF-INCOMPATIBLE PLANT.

Aster furcatus is a rare, self-incompatible plant with fewer than 50 known populations throughout its range. We verified self-incompatibility in A. furcatus by conducting experimental self- and cross-pollinations and by examining seed set in a small population comprised of a single clonal genet.

BIOCHEMICAL HETEROPHYLLY AND FLAVONOID EVOLUTION IN NORTH AMERICAN POTAMOGETON (POTAMOGETONACEAE).

Morphologically heterophyllous species of Potamogeton also commonly display biochemical heterophylly with respect to flavonoid compounds. Generally, floating leaves contain an assortment of flavonoids, whereas submersed leaves often exhibit reduced flavonoid profiles. In strictly submersed (homophyllous) species, two patterns occur.