Resumo

CUEVAS-GUZMAN, Ramón; NUNEZ-LOPEZ, Nora M.; CANALES-PINA, Susana  e  MORALES-ARIAS, José Guadalupe. Prionosciadium tamayoi (Apiaceae), a new species from western Mexico. Rev. Mex. Biodiv. [online]. 2020, vol.91, e913338.  Epub 22-Dez-2020. ISSN 2007-8706.  https://doi.org/10.22201/ib.20078706e.2020.91.3338.

Prionosciadium tamayoi is described as new species for science. The species is separated from those known within the genus for its linear, and entire or crenate foliar divisions, its small fruits and coral red-coloured flowers. Information on its habitat is provided and its morphological characters are illustrated. In addition, the new species is compared with the most related taxa.

Palavras-chave : Arracacia clade; Endemism; Perennial herb; Sierra of Cuale; Limestone soils; Umbelliferae.

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