Species delimitation in the Aloysia gratissima complex (Verbenaceae) following the phylogenetic species concept

The Aloysia gratissima complex is a group of 22 accepted, specific and infraspecific taxa, the boundaries of which are controversial. Various different authors have chosen different characters as criteria for delimiting taxa in this complex, which has been reflected in the variable number of accepte...

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Detalles Bibliográficos
Autores principales: O´Leary, Nataly, Filloy, Julieta
Publicado: 2016
Materias:
Population aggregation analysis
Taxonomy
Aloysia gratissima
Verbenaceae
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00244074_v180_n2_p193_Moroni
http://hdl.handle.net/20.500.12110/paper_00244074_v180_n2_p193_Moroni
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00244074_v180_n2_p193_Moroni
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spelling paper:paper_00244074_v180_n2_p193_Moroni2023-06-08T14:52:22Z Species delimitation in the Aloysia gratissima complex (Verbenaceae) following the phylogenetic species concept O´Leary, Nataly Filloy, Julieta Population aggregation analysis Taxonomy Aloysia gratissima Verbenaceae The Aloysia gratissima complex is a group of 22 accepted, specific and infraspecific taxa, the boundaries of which are controversial. Various different authors have chosen different characters as criteria for delimiting taxa in this complex, which has been reflected in the variable number of accepted species. To resolve the taxonomy of this group, a modified population aggregation analysis, based on the phylogenetic species concept, was employed. As a result, the Aloysia gratissima complex is here circumscribed as compromising only four species, A. decipiens, A. gratissima s.s., A. oblanceolata and A. schulziana. These species are sustained by a different combination of four characters, of the 16 qualitative attributes analysed. A new approach based on cluster analysis is proposed here delimiting varieties. As a consequence two varieties, supported by significant differences in quantitative characters, are recognized here: A. gratissima var. gratissima and A. gratissima var. sellowii. A complete taxonomic revision of the accepted taxa is presented and six new synonyms are proposed. A key, illustrations and geographical distribution maps are included. © 2016 The Linnean Society of London. Fil:O'Leary, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Filloy, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00244074_v180_n2_p193_Moroni http://hdl.handle.net/20.500.12110/paper_00244074_v180_n2_p193_Moroni
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Population aggregation analysis
Taxonomy
Aloysia gratissima
Verbenaceae
spellingShingle Population aggregation analysis
Taxonomy
Aloysia gratissima
Verbenaceae
O´Leary, Nataly
Filloy, Julieta
Species delimitation in the Aloysia gratissima complex (Verbenaceae) following the phylogenetic species concept
topic_facet Population aggregation analysis
Taxonomy
Aloysia gratissima
Verbenaceae
description The Aloysia gratissima complex is a group of 22 accepted, specific and infraspecific taxa, the boundaries of which are controversial. Various different authors have chosen different characters as criteria for delimiting taxa in this complex, which has been reflected in the variable number of accepted species. To resolve the taxonomy of this group, a modified population aggregation analysis, based on the phylogenetic species concept, was employed. As a result, the Aloysia gratissima complex is here circumscribed as compromising only four species, A. decipiens, A. gratissima s.s., A. oblanceolata and A. schulziana. These species are sustained by a different combination of four characters, of the 16 qualitative attributes analysed. A new approach based on cluster analysis is proposed here delimiting varieties. As a consequence two varieties, supported by significant differences in quantitative characters, are recognized here: A. gratissima var. gratissima and A. gratissima var. sellowii. A complete taxonomic revision of the accepted taxa is presented and six new synonyms are proposed. A key, illustrations and geographical distribution maps are included. © 2016 The Linnean Society of London.
author O´Leary, Nataly
Filloy, Julieta
author_facet O´Leary, Nataly
Filloy, Julieta
author_sort O´Leary, Nataly
title Species delimitation in the Aloysia gratissima complex (Verbenaceae) following the phylogenetic species concept
title_short Species delimitation in the Aloysia gratissima complex (Verbenaceae) following the phylogenetic species concept
title_full Species delimitation in the Aloysia gratissima complex (Verbenaceae) following the phylogenetic species concept
title_fullStr Species delimitation in the Aloysia gratissima complex (Verbenaceae) following the phylogenetic species concept
title_full_unstemmed Species delimitation in the Aloysia gratissima complex (Verbenaceae) following the phylogenetic species concept
title_sort species delimitation in the aloysia gratissima complex (verbenaceae) following the phylogenetic species concept
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00244074_v180_n2_p193_Moroni
http://hdl.handle.net/20.500.12110/paper_00244074_v180_n2_p193_Moroni
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AT filloyjulieta speciesdelimitationinthealoysiagratissimacomplexverbenaceaefollowingthephylogeneticspeciesconcept
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