title: A new tetraploid species of Solanum L. sect. Solanum (Solanaceae) from Tanzania.
abstract: Solanum umalilaense Manoko sp. nov. (Solanaceae) is described from the Umalila area, in the southern highlands of Tanzania. Its novelty is supported with both morphological and AFLP data. Phenetic and phylogenetic analyses place Solanum umalilaense as a unique and well-supported taxon among tetraploid species of Solanum sect. Solanum from Africa. It can be distinguished from other African species by its extremely developed branching, each branch producing many multi-flowered inflorescences, flowers with short calyx lobes and its persistent, small, light yellowish brown fruits.
authors.affiliation: Department of Botany, University of Dar es Salaam, Box 35060, Dar es Salaam, Tanzania  ; Department of Molecular Plant Physiology, IWWR, Radboud University Nijmegen, Huygens building, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
authors.forename: Mkabwa L K
authors.initials: ML
authors.lastname: Manoko
authors.forename: Gerard M
authors.initials: GM
authors.lastname: van Weerden
authors.forename: Ronald G
authors.initials: RG
authors.lastname: van Berg
authors.forename: Celestina
authors.initials: C
authors.lastname: Mariani