A New Species and a New Synonym in Senecio (Compositae) from Madagascar

Joel Calvo; Heidi H. Schmidt; Martin W. Callmander

doi:10.3417/2023846

Joel Calvo Conservatoire et Jardin botaniques de Genève
Heidi H. Schmidt Missouri Botanical Garden
Martin W. Callmander Conservatoire et Jardin botaniques de Genève

DOI: https://doi.org/10.3417/2023846

Keywords: Asteraceae, Madagascar, Senecio, Senecioneae, taxonomy

Abstract

We describe and illustrate the new species Senecio basipectinatus J. Calvo & Callm. (Compositae) endemic from the Befotaka-Midongy du Sud Protected Area in southeastern Madagascar. The new species is compared with the morphologically most similar taxon S. vaingaindrani Scott Elliot. The taxonomic circumscription of the latter species is further revised and its variety concolor Humbert is newly synonymized.