Premium
Reinstatement of Thyrsacanthus Moric. ( Acanthaceae ) and taxonomic novelties in the genus
Author(s) -
Côrtes Ana Luiza A.,
de Borges Ricardo L.B.,
Rapini Alessandro
Publication year - 2010
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.1002/tax.593025
Subject(s) - acanthaceae , monophyly , genus , biology , phylogenetic tree , zoology , botany , clade , biochemistry , gene
Phylogenetic studies based on molecular data indicated that the Neotropical genus Anisacanthus Nees ( Acanthaceae ), as traditionally circumscribed, is not monophyletic. Based on the priority of the description of Thyrsacanthus ramosissimus Moric. versus the description of Thyrsacanthus Nees, we are reinstating the name Thyrsacanthus (Art. 42.1 of the ICBN) to include the South American species traditionally assigned to Anisacanthus . Drejera Nees is included in the synonymy of Thyrsacanthus , a new species ( T. microphyllus A. Côrtes & Rapini) is described, three new combinations are proposed, two new taxonomic synonyms at the species level indicated and three lectotypes designated. The positions of Anisacanthus trilobus Lindau and A. pohlii Lindau are uncertain, requiring further investigations.