Nemesia arenifera (Scrophulariaceae), a new species from the Sandveld, Northern Cape Province, South Africa, and the lectotypification of N. viscosa Author Bester, Stoffel P. National Herbarium, South African National Biodiversity Institute, Private Bag X 101, 0001 Pretoria, South Africa. & School of Environmental Sciences and Development, North-West University, Private Bag X 6001, 2520 Potchefstroom, South Africa. Author Steyn, Hester M. National Herbarium, South African National Biodiversity Institute, Private Bag X 101, 0001 Pretoria, South Africa. text Phytotaxa 2013 2013-08-26 126 1 49 54 http://dx.doi.org/10.11646/phytotaxa.126.1.6 journal article 5580 10.11646/phytotaxa.126.1.6 f2866618-3373-417a-9e3d-f7de5b7d1b03 1179-3163 5085286 Nemesia viscosa E.Meyer ex Bentham (1836: 21) Type (designated here): — SOUTH AFRICA . Northern Cape : Verleptpraam et ad fl. Gariep. [Annotation in different handwriting: On hills by the Orange River near Verleptpram, Little Namaqualand], (2817AA), September 1830 , Drège 3142a ( lectotype K000411170, scan!) . Note :—The K specimens were the only ones that could be traced. Two syntypes ( Drège 3142a & b ) are mounted together on the same sheet, each having its own label. One specimen ( Drège 3142a ) has mostly dehisced capsules but no flowers and the other has buds, but no mature flowers or capsules, therefore the syntype Drège 3142a is considered the better specimen representing the description in the protologue and is chosen here as the lectotype .