Additions of two new families (Petiveriaceae and Talinaceae) to the flora of Manipur, India

The present investigation on the angiosperm flowering plants revealed two families, viz., Petiveriaceae and Talinaceae, for the first time in the flora of Manipur, Northeast India. Rivina humilis L. represents the family Petiveriaceae, whereas Talinaceae is represented by Talinum paniculatum (Jacq.) Gaertn. and T. fruticosum (L) Juss. respectively. According to the available literature, all three taxa recorded, viz., R. humilis, T. paniculatum and T. fruticosum, are introduced plants and their occurrence in Manipur indicates that they have expanded their distributional range within the state. Detailed morphological descriptions and colour photographs are provided for easy identification.