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Darwiniana, nueva serie
Print version ISSN 0011-6793On-line version ISSN 1850-1699
Abstract
KELLER, Héctor A.; LIEDE-SCHUMANN, Sigrid; RAPINI, Alessandro and MORAL, Sergio Cáceres. EL GÉNERO RUEHSSIA (APOCYNACEAE) EN LA ARGENTINA: FILOGENIA, NUEVAS COMBINACIONES Y NUEVOS REGISTROS. Darwiniana, nueva serie [online]. 2020, vol.8, n.2, pp.414-437. ISSN 0011-6793. http://dx.doi.org/10.14522/darwiniana.2020.82.871.
Keller, H. A.; S. Liede-Schumann; A. Rapini & S. Cáceres Moral. 2020. The genus Ruehssia (Apocynaceae) from Argentina: phylogeny, new combinations and new records. Darwiniana, nueva serie 8(2): 414-437.
Ruehssia was recently reestablished to classify all American species of the tribe Marsdenieae. Here, we provide a revision of the genus in Argentina, with an identification key, comments, a distribution map, and images of all species. The phylogenetic position of all species has been assessed using chloroplast and nuclear DNA sequences. We recognize six species. Besides R. altissima and R. macrophylla, we include two new records, R. hilariana and R. brasiliensis, and propose two new combinations in the genus, R. castillonii (Lillo ex T. Mey.) H.A. Keller & Liede and R. tressensiae (S.A. Cáceres & Morillo) H.A. Keller & Liede. Ruehssia montana and R. ulei, previously reported to Argentina, do not occur in the country.
Keywords : Asclepiadoideae; Marsdenia; Marsdenieae; taxonomy..