Plant Taxonomist
CurrentTaxonomy and systematics of the Solanaceae worldwide, but especially the Neotropics; ethnobotany; biodiversity issues. Current research includes biodiversity inventory, sustainable development and conservation, but concentrates on systematics and phylogeny of Solanaceae, especially Solanum and Nicotiana, and the evolution of floral form and breeding systems. Editor and organizer of Flora Mesoamericana, an international collaborative project to provide a synoptic catalogue of the plants of southern Mexico and Central America.