Multivariate studies of Ipheion (Amaryllidaceae, Allioideae) and related genera
| Autor: | Liliana M. Giussani, Agostina Belén Sassone, Encarnación Rosa Guaglianone |
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| Rok vydání: | 2013 |
| Předmět: |
MORPHOLOGICAL VARIATION
biology AMARYLLIDACEAE Morphological variation IPHEION Ipheion Plant Science Amaryllidaceae NOTHOSCORDUM biology.organism_classification Ciencias Biológicas TRISTAGMA Botany Allioideae MULTIVARIATE ANALYSES Humanities Ciencias de las Plantas Botánica CIENCIAS NATURALES Y EXACTAS Ecology Evolution Behavior and Systematics |
| Zdroj: | Plant Systematics and Evolution. 299:1561-1575 |
| ISSN: | 1615-6110 0378-2697 |
| DOI: | 10.1007/s00606-013-0819-5 |
| Popis: | Ipheion, as recognized by Guaglianone (Darwiniana 17:159–242, 1972), is a small genus of the family Amaryllidaceae, subfamily Allioideae, tribe Gilliesieae endemic to South America. Since 1800, the species of Ipheion were treated under Beauverdia, Brodiaea, Milla, Nothoscordum, Tristagma or Triteleia. Nowadays, some species of Ipheion are treated as Tristagma and some other under Nothoscordum. In this paper, we analyzed the morphological variation among species of Ipheion and related genera using a numerical taxonomic approach based on overall similarity, to investigate the intergeneric and infrageneric variations to the circumscribed groups. Based on 141 operational taxonomic units and 51 morphological characters, multivariate analyses were performed. Results showed that Ipheion separated into two groups according to Guaglianone’s sectional treatment: Ipheion sect. Ipheion is morphologically more similar to the studied species of Tristagma, while I. sect. Hirtellum can be separated from Nothoscordum/Zoellnerallium and from Tristagma and allies. These a priori groupings were tested using discriminant and univariate analyses. Diagnostic characters were selected to differentiate groups. Previous taxonomic treatments are discussed and results are also evaluated using additional karyological and geographical data. Fil: Sassone, Agostina Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; Argentina Fil: Giussani, Liliana Mónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; Argentina Fil: Guaglianone, Encarnación Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; Argentina |
| Databáze: | OpenAIRE |
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