El género Ruehssia (Apocynaceae) en la Argentina: filogenia, nuevas combinaciones y nuevos registros

Héctor A. Keller; Sigrid Liede-Schumann; Alessandro Rapini; Sergio Cáceres Moral

doi:10.14522/darwiniana.2020.82.871

The genus Ruehssia (Apocynaceae) from Argentina: phylogeny, new combinations and new records

Authors

Héctor A. Keller Instituto de Botánica del Nordeste, Casilla de Correo 209, 3400 Corrientes, Argentina.
Sigrid Liede-Schumann University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany.
Alessandro Rapini Programa de Pós-graduação em Botânica, Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana, Av. Transnordestina s/n, Novo Horizonte, Feira de Santana, Bahia, 44036-900, Brasil.
Sergio Cáceres Moral Instituto de Botánica del Nordeste, Casilla de Correo 209, 3400 Corrientes, Argentina.

DOI:

https://doi.org/10.14522/darwiniana.2020.82.871

Keywords:

Asclepiadoideae, Marsdenia, Marsdenieae, taxonomy

Abstract

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.

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Published

03-09-2020

How to Cite

Keller, H. A., Liede-Schumann, S., Rapini, A., & Cáceres Moral, S. (2020). The genus Ruehssia (Apocynaceae) from Argentina: phylogeny, new combinations and new records. Darwiniana, Nueva Serie, 8(2), 414–437. https://doi.org/10.14522/darwiniana.2020.82.871