title: Oberholzeria (Fabaceae subfam. Faboideae), a new monotypic legume genus from Namibia.
abstract: Oberholzeria etendekaensis, a succulent biennial or short-lived perennial shrublet is described as a new species, and a new monotypic genus. Discovered in 2012, it is a rare species known only from a single locality in the Kaokoveld Centre of Plant Endemism, north-western Namibia. Phylogenetic analyses of molecular sequence data from the plastid matK gene resolves Oberholzeria as the sister group to the Genisteae clade while data from the nuclear rDNA ITS region showed that it is sister to a clade comprising both the Crotalarieae and Genisteae clades. Morphological characters diagnostic of the new genus include: 1) succulent stems with woody remains; 2) pinnately trifoliolate, fleshy leaves; 3) monadelphous stamens in a sheath that is fused above; 4) dimorphic anthers with five long, basifixed anthers alternating with five short, dorsifixed anthers, and 5) pendent, membranous, one-seeded, laterally flattened, slightly inflated but indehiscent fruits.
authors: Independent Researcher, Windhoek, Namibia; H. G. W. J. Schweickerdt Herbarium, Department of Plant Science, University of Pretoria, Pretoria, South Africa.
authors: Wessel
authors: W
authors: Swanepoel
authors: Department of Botany and Plant Biotechnology, University of Johannesburg, Johannesburg, South Africa.
authors: M Marianne
authors: MM
authors: le Roux
authors: School of Life Sciences, Arizona State University, Tempe, Arizona, United States of America.
authors: Martin F
authors: MF
authors: Wojciechowski
authors: H. G. W. J. Schweickerdt Herbarium, Department of Plant Science, University of Pretoria, Pretoria, South Africa.
authors: Abraham E
authors: AE
authors: van Wyk
mesh_terms: D018744:DNA, Plant / Q000032:analysis; D019143:Evolution, Molecular; D007887:Fabaceae / Q000033:anatomy & histology* / Q000145:classification* / Q000235:genetics; D035264:Flowers / Q000033:anatomy & histology; D009276:Namibia; D010802:Phylogeny; D018515:Plant Leaves / Q000033:anatomy & histology
chemical_list: D018744:DNA, Plant