MICROMORPHOLOGICAL CHARACTERS SUPPORTING THE REMOVAL OF SENECIO SERIES OTOPTERI FROM SENECIO (ASTERACEAE, SENECIONEAE)
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| Natura: | Artículo científico |
| Lingua: | en |
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Instituto de Botánica Darwinion
2009
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| _version_ | 1876422597163352064 |
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| author | Adriana Riva |
| author_facet | Adriana Riva |
| contents | MICROMORPHOLOGICAL CHARACTERS SUPPORTING THE REMOVAL OF SENECIO SERIES OTOPTERI FROM SENECIO (ASTERACEAE, SENECIONEAE) Adriana Riva Raúl Pozner Susana E. Freire Biología micro Senecio Asteraceae Compositae morphology Recent molecular studies suggest that Senecio otites belonging to Senecio sect. Senecio ser. Otopteri should be removed from Senecio so that this large and taxonomically complicated genus would be monophyletic. In order to evaluate the taxonomic position of Senecio otites and the placement of series Otopteri, 13 species belonging to Senecio sect. Senecio ser. Otopteri, including S. otites, were examined for micro-morphological characters of the style branches (stigmatic surface, style-arm apices) and anthers (filament collar, anther bases, anther appendages). Three states of these micromorphological characters were present in nearly all species of Senecio sect. Senecio ser. Otopteri: 1) the style-arms are apically convex or subconvex, papillate, and surrounded by a crown of hairs of different lengths; 2) the stigmatic surfaces have a cleft configuration (banded to cleft in S. attenuatus); and 3) the anthers are auriculate. These results provide new morphological support for the placement of Senecio otites in Senecio sect. Senecio ser. Otopteri and the future removal of that series from Senecio proper. 2009 artículo científico 0011-6793 https://www.redalyc.org/articulo.oa?id=66914272011 en http://www.redalyc.org/revista.oa?id=669 Darwiniana application/pdf Instituto de Botánica Darwinion Darwiniana (Argentina) Num.2 Vol.47 |
| format | Artículo científico |
| id | redalyc_66914272011 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Instituto de Botánica Darwinion |
| spellingShingle | MICROMORPHOLOGICAL CHARACTERS SUPPORTING THE REMOVAL OF SENECIO SERIES OTOPTERI FROM SENECIO (ASTERACEAE, SENECIONEAE) Adriana Riva Biología micro Senecio Asteraceae Compositae morphology MICROMORPHOLOGICAL CHARACTERS SUPPORTING THE REMOVAL OF SENECIO SERIES OTOPTERI FROM SENECIO (ASTERACEAE, SENECIONEAE) Adriana Riva Raúl Pozner Susana E. Freire Biología micro Senecio Asteraceae Compositae morphology Recent molecular studies suggest that Senecio otites belonging to Senecio sect. Senecio ser. Otopteri should be removed from Senecio so that this large and taxonomically complicated genus would be monophyletic. In order to evaluate the taxonomic position of Senecio otites and the placement of series Otopteri, 13 species belonging to Senecio sect. Senecio ser. Otopteri, including S. otites, were examined for micro-morphological characters of the style branches (stigmatic surface, style-arm apices) and anthers (filament collar, anther bases, anther appendages). Three states of these micromorphological characters were present in nearly all species of Senecio sect. Senecio ser. Otopteri: 1) the style-arms are apically convex or subconvex, papillate, and surrounded by a crown of hairs of different lengths; 2) the stigmatic surfaces have a cleft configuration (banded to cleft in S. attenuatus); and 3) the anthers are auriculate. These results provide new morphological support for the placement of Senecio otites in Senecio sect. Senecio ser. Otopteri and the future removal of that series from Senecio proper. 2009 artículo científico 0011-6793 https://www.redalyc.org/articulo.oa?id=66914272011 en http://www.redalyc.org/revista.oa?id=669 Darwiniana application/pdf Instituto de Botánica Darwinion Darwiniana (Argentina) Num.2 Vol.47 |
| title | MICROMORPHOLOGICAL CHARACTERS SUPPORTING THE REMOVAL OF SENECIO SERIES OTOPTERI FROM SENECIO (ASTERACEAE, SENECIONEAE) |
| topic | Biología micro Senecio Asteraceae Compositae morphology |
| url | https://www.redalyc.org/articulo.oa?id=66914272011 |