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Morfología floral de la subtribu Leiboldiinae (Vernonieae, Asteraceae)

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Morphological features of flowers and inflorescences from 13 of 14 species of subtribe Leiboldiinae are analyzed, with the goal of identifying characters with taxonomic value for the delimitation of genera… Click to show full abstract

Morphological features of flowers and inflorescences from 13 of 14 species of subtribe Leiboldiinae are analyzed, with the goal of identifying characters with taxonomic value for the delimitation of genera and species. The principal characters to recognize genera in the subtribe are: presence of palaea on the receptacle (Bolanosa), number of series in the involucre and pappus (Stramentopappus), shape of the apices of the phyllaries (Lepidonia), and colour and duration of the pappus. At the specific level, the more important characters are diversity and distribution of trichomes, colour of florets and differences in the sculpturing of the surfaces of the petals.ResumenSe analizaron las principales características morfológicas de las flores e inflorescencias de 13 de las 14 especies de la subtribu Leiboldiinae, con el objetivo de identificar caracteres con valor taxonómico en la delimitación genérica y específica. Entre los caracteres que permiten reconocer géneros en la subtribu destacan la presencia de páleas en el receptáculo (Bolanosa), número de series del involucro y el vilano (Stramentopappus), forma del ápice de los filarios (Lepidonia), color y duración del vilano. A nivel específico los caracteres más importantes son la diversidad y disposición de tricomas, color de las flores y las diferencias en la escultura de la superficie de los pétalos.

Keywords: leiboldiinae vernonieae; los; vernonieae asteraceae; morfolog floral; subtribu leiboldiinae; floral subtribu

Journal Title: Brittonia
Year Published: 2017

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