SciELO - Scientific Electronic Library Online

 
vol.36 issue139LEGUMINOSAS COLOMBIANAS DE LA SUBFAMILIA CAESALPINIOIDEAE PRESENTES EN EL HERBARIO DEL REAL JARDÍN BOTÁNICO DE KEW, REINO UNIDOREPORTE DEL HALLAZGO DE UN CRÁNEO DE STEGOSTADON WARINGI (HOLLAND, 1920) JUVENIL (MAMMALIA, PROBOSCIDEA) EN LA ZONA RURAL DEL MUNICIPIO DE TURBANÁ, BOLÍVAR. COLOMBIA author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales

Print version ISSN 0370-3908

Abstract

GONZALEZ, Favio. FLORÍSTICA Y SISTEMÁTICA FILOGENÉTICA INNECESARIAMENTE DISYUNTAS: EL CASO DE ARISTOLOCHIA, EUGLYPHA Y HOLOSTYLIS (ARISTOLOCHIACEAE). Rev. acad. colomb. cienc. exact. fis. nat. [online]. 2012, vol.36, n.139, pp.193-202. ISSN 0370-3908.

The recently published monograph of Aristolochiaceae for the Flora of Paraguay revives the traditional delimitation of Aristolochia with respect to the monotypic genera Euglypha y Holostylis. The presence of both morphological and molecular synapomorphies of Aristolochia in Euglypha and Holostylis, as well as the reevaluation of the diagnostic and differential traits of Euglypha and Holostylis, which are shown to be ambiguous, homoplasic, clinal or present only in late floral semaphoronts, provide conclusive evidence to subordinate E. rojasiana y H. reniformis in Aristolochia. The reconognition of Aristolochia, such as that followed in the mentioned monograph, implies the paraphyly of this taxon, which stands against the logic principles of the phylogenetic systematics. The morphological and molecular-based phylogenetic analyses of the Aristolochiaceae, which provide sufficient evidence to merge Euglypha and Holostylis within Aristolochia, as the first two laare nested in the clade formed by the subgenera Aristolochia + Pararistolochia, and more precisely within the New World subgenus Aristolochia sect. Gymnolobus.

Keywords : Aristolochia; Euglypha; Holostylis; phylogenetic classifications; phylogenetic systematics; Linnean classifications; South American floristics.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )