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Boletín de la Sociedad Argentina de Botánica
versión On-line ISSN 1851-2372
Resumen
RATTO, Francisco y BARTOLI, Adriana. Revisión of the South American species of Gutierrezia (Asteraceae, Astereae, Solidagininae). Bol. Soc. Argent. Bot. [online]. 2020, vol.55, n.3, pp.1-10. ISSN 1851-2372. http://dx.doi.org/https://doi.org/10.31055/1851.2372.v55.n3.28227.
Background and aims: Gutierrezia is an American genus of Asteraceae, tribe Astereae, subtribe Solidagininae. A taxonomic revisión of South American species of the genus was carried out, based on morphological data. M&M: To pursue our aim, an exhaustive bibliographic review was carried out, materials deposited in the main Herbaria were studied, the type specimens were consulted for nomenclatural purposes and collection trips were made. Results: In the framework of the revision of the genus Gutierrezia, 3 species and 2 varieties new to the science were described and 2 species were rehabilitated. Eight names were lectotypified and one neotype was designated. We concluded that genus Gutierrezia is composed of 34 species, 17 of which inhabit North America, and 17 species with 2 varieties, here described, in South America.
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