Flavonoids of Onagraceae

Investigations of Meiotic Chromosomes of Six Genera in the Onagraceae

Phylogenetics in Clarkia (Onagraceae): Restriction Site Mapping of Chloroplast DNA

Restriction site maps of chloroplast DNA (cpDNA), maternally inherited in Clarkia, were obtained in representative species of all seven diploid sections, the allotetraploid sect. Clarkia, and the outgroup Epilobium brachycarpum. CpDNA restriction site variation was analyzed by Wagner and Dollo parsimony, bootstrapping, and genetic distance methods. Four shortest Wagner trees, one of which was a...

Taxonomic changes in Oenothera sections Gaura and Calylophus (Onagraceae)

The long-recognized genus Gaura was shown recently to be deeply nested within one of two major clades of Oenothera. New molecular data indicate further taxonomic changes are necessary in Oenothera sect. Gaura. We make these changes here, including three new combinations, in advance of the Onagraceae treatment for the Flora of North America. The new phylogenetic studies show that several pairs o...

The correct name for a section of Ludwigia L. (Onagraceae)

In 1953, Hara provided new combinations for many sectional and species names when he combined Jussiaea L. with Ludwigia L., and at the time, Ludwigiasect.Oligospermum (Micheli) H.Hara was the correct name for one well-defined section. However, subsequent changes to/clarifications of the botanical code have necessitated a change for that name in that now an autonym is treated as having priority ...

P11: The Effect of Flavonoids in Memory

Flavonoids may exert particularly powerful actions on mammalian cognition and may reverse age-related declines in memory and learning. Flavonoids can be modulated neuronal function and there by influencing memory, learning and cognitive function. Dietary supplementation with flavonoid-rich foods, such as blueberry, green tea and Ginkgo biloba lead to significant reversals of age-related deficit...