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...
| Autores principales: | , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00244074_v180_n2_p193_Moroni |
| Aporte de: |
| id |
todo:paper_00244074_v180_n2_p193_Moroni |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_00244074_v180_n2_p193_Moroni2023-10-03T14:35:06Z Species delimitation in the Aloysia gratissima complex (Verbenaceae) following the phylogenetic species concept Moroni, P. O'Leary, N. Filloy, J. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Moroni, P. O'Leary, N. Filloy, J. 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. |
| format |
JOUR |
| author |
Moroni, P. O'Leary, N. Filloy, J. |
| author_facet |
Moroni, P. O'Leary, N. Filloy, J. |
| author_sort |
Moroni, P. |
| 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 |
| url |
http://hdl.handle.net/20.500.12110/paper_00244074_v180_n2_p193_Moroni |
| work_keys_str_mv |
AT moronip speciesdelimitationinthealoysiagratissimacomplexverbenaceaefollowingthephylogeneticspeciesconcept AT olearyn speciesdelimitationinthealoysiagratissimacomplexverbenaceaefollowingthephylogeneticspeciesconcept AT filloyj speciesdelimitationinthealoysiagratissimacomplexverbenaceaefollowingthephylogeneticspeciesconcept |
| _version_ |
1807317689892339712 |