Taxonomic revision of Phyllanthus (Phyllanthaceae) in Madagascar and the Comoro Islands III: subgenera Swartziani, Afroswartziani and Emblica

The third part of the revision of the genus Phyllanthus L. (Phyllanthaceae) in Madagascar and the Comoro Islands treats the subgenera Swartziani comb. & stat. nov., Afroswartziani subgen. nov. and Emblica. Taxonomic history of the subgenus Phyllanthus is given and its circumscription is revised. Phyllanthus subgenus Afroswartziani subgen. nov. comprises thirteen species. One species P. ankazobensis is described as new to science. P. vatovaviensis and P. madagascariensis var. kalambatitrensis are validly published by this paper. Identification keys, descriptions and species notes (habitat, distribution and threats) are provided. Distribution maps and IUCN conservation assessments are provided for all species and varieties.