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| Riva,Adriana; Pozner,Raúl; Freire,Susana E. |
| 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 micromorphological characters of the style branches (stigmatic surface, stylearm 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Asteraceae; Compositae; Micro-morphology; Section Otites; Senecio; Series Otopteri; South America. |
| Ano: 2009 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932009000200011 |
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| Nicola,Marcela V; Freire,Susana E; Ariza Espinar,Luis. |
| Se proponen tres nuevas combinaciones en Oriastrum: Oriastrum minutum de Argentina y Chile y O. stuebelii var. abbreviatum y O. stuebelii var. argentinum de Argentina. Se cita a O. tontalensis como nuevo sinónimo de O. pulvinatum var. polymallum y a O. famatinae y O. stuebelii var. cryptum como nuevos sinónimos de O. stuebelii var. argentinum. Se designan nueve lectotipos para: Aldunatea chilensis, A. gnaphalioides, A. lycopodioides, Carmelita formosa, Chaetanthera stuebelii var. argentina, C. villosa, Egania acerosa, E. dioica y Tylloma limbatum. Adicionalmente, se incluyen ilustraciones de filarios y hojas de O. pulvinatum var. polymallum y O. tontalensis y una tabla comparativa de los caracteres diagnósticos de las variedades de O. stuebelii y O.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chaetanthera; Compositae; Lectotipos; Nomenclatura; Oriastrum; Sinónimos. |
| Ano: 2015 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932015000100005 |
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