Open AccessEl género Ruehssia (Apocynaceae) en la Argentina: filogenia, nuevas combinaciones y nuevos registros
Author(s) -
Héctor Alejandro Keller,
Sigrid LiedeSchumann,
Alessandro Rapini,
Sergio Cáceres Moral
Publication year - 2020
Publication title -
darwiniana
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.31
H-Index - 21
eISSN - 1850-1699
pISSN - 0011-6793
DOI - 10.14522/darwiniana.2020.82.871
Subject(s) - tribe , genus , phylogenetic tree , botany , apocynaceae , biology , key (lock) , evolutionary biology , ecology , anthropology , genetics , sociology , gene
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.