Abstract

KELLER, Héctor  and  LIEDE-SCHUMANN, Sigrid. Caa, a new South American genus of Gonolobinae (Apocynaceae: Asclepiadeae: Asclepiadoideae). Lilloa [online]. 2020, vol.57, n.1, pp.81-88. ISSN 0075-9481.  http://dx.doi.org/doi.org/10.30550/j.lil/2020.57.1/6.

The phylogenetic analysis of the subtribe Gonolobinae allowed to determine the position of Matelea balansae Morillo & Fontella, a taxon that was not related to the clade of the genus Matelea Aubl. sensu stricto, nor was grouped into other generic clades. This leads to the foundation of a new monotypic genus, Caa H. A. Keller & Liede. Morphological information, complementary to the original diagnosis of the species, is included.

Keywords : Caa balansae; Matelea balansae; Paraguay; Argentina.