Systematics Section / ASPT
Penneys, Darin S. , Michelangeli, Fabian A. , Judd, Walter S. , Skean, James D. .
Henrietteeae, a new tribe of neotropical Melastomataceae..
Neotropical, berry-fruited Melastomataceae have traditionally been placed in either the Blakeeae (ca. 200 species, most having 6-merous flowers subtended by paired, decussate bracts) or the Miconieae (ca. 2000 species and 30 genera). An earlier investigation suggested that Miconieae might not be monophyletic, with the cauliflorous genus, Bellucia, not included in the core Miconieae. Our ITS and ndhF sequence data shows that Bellucia forms a clade with Henriettea, Henriettella, Loreya, and Myriaspora. In our preliminary cladistic analyses, this newly recognized tribe, the Henrietteeae, is neither part of, nor sister to, the Miconieae. Until now, all seven of the genera and ca. 130 species of the Henrietteeae have been treated as members of the Miconieae. Potential morphological synapomorphies for the Henrietteeae include cauliflorous inflorescences, pubescent petals, berry fruits, megastyloids, anomocytic stomata, and septate fibers. Llewelynia and Kirkbridea remain to be sampled for the molecular portion of this study, but anatomical and morphological characters strongly suggest that they should also be included within the Henrietteeae.
Melastomataceae of the World
1 - Albion College, Department of Biology, Albion, Michigan, 49224, USA
2 - University of Florida, Department of Botany, 220 Bartram Hall, P.O. Box 118526, Gainesville, Florida, 32611-8526, USA
3 - New York Botanical Garden, Cullman Program for Molecular Systematics Studies, 200th St. & Southern Blvd., Bronx, New York, 10458-5126, USA
Presentation Type: Paper
Location: Cottonwood A (Snowbird Center)
Date: Tuesday, August 3rd, 2004
Time: 3:45 PM