Donate to IAPT when you shop on Amazon

Unless otherwise specified, content on this website is licensed under Creative Commons CC-BY. Please see our Terms of Use for more information.

Three lonely Argentines: Toward a new generic delimitation in Polygalaceae

April 5, 2019

by Michelle Mota, John Richard Abbott, Roberto Manuel Salas, Kurt Neubig, José Floriano Barêa Pastore, 

Abstract Three enigmatic lineages of the Polygalaceae endemic to the semi-arid region of Argentina were sampled within the framework of a molecular phylogenetic study of its genera. The regions nrITS, matK, the trnL intron, the trnL-trnF intergenic spacer, and rbcL were analyzed, and the history of some morphological characters was reconstructed in the family. Results of our phylogenetic analyses and morphological study support the recognition of three monotypic genera historically treated in the genera Bredemeyera and Polygala. A new genus, Rhamphopetalum, and a new combination, Rhamphopetalum microphyllum, are proposed together with resurrection of Hualania and Monrosia. The emergence of two species (Bredemeyera colletioides and B. microphylla) as new genera, resolves the polyphyletic status of Bredemeyera. Relationships and morphological characters among the genera of Polygalaceae are discussed. Provided here are photographic plates of H. colletioides, M. pterolopha, and R. microphyllum habits, with details of the floral structures, a distribution map, typifications, and taxonomic keys for the tribes of Polygalaceae and genera within the tribe Polygaleae.

 

Tags:

Share on Facebook
Share on Twitter
Please reload

Recent Posts

November 11, 2019

October 24, 2019

October 3, 2019

Please reload

Archive
Please reload

Search By Tags
Please reload

Follow Us
  • Facebook Basic Square
  • Twitter Basic Square
  • Google+ Basic Square