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Rodriguésia

Print version ISSN 0370-6583On-line version ISSN 2175-7860

Abstract

VIANA, Pedro Lage et al. Flora of the canga of the Serra dos Carajás, Pará, Brazil: Poaceae. Rodriguésia [online]. 2018, vol.69, n.3, pp.1311-1368. ISSN 0370-6583.  http://dx.doi.org/10.1590/2175-7860201869330.

This work presents a taxonomic treatment for the Poaceae in the canga of the Serra dos Carajás, Pará state, Brazil. The article was prepared according to the guidelines of the project Flora of the canga of the Serra dos Carajás, based on the study of the specimens from the herbaria BHCB, MG and UB. A total of 87 species belonging to 37 genera were inventoried. Among these, Axonopus carajasensis, Paspalum cangarum, P. carajasense and Sporobolus multiramosus are considered endemic to the canga of the Serra dos Carajas; two new species are to be published soon (one of Paspalum and one of Hildaea); and one species of Trichanthecium is under study to determine its taxonomic identity. Six species are recorded for the first time in Pará state. Morphological descriptions, identification keys, illustration of the spikelets, photo plates, detailed geographic distribution and diagnostic comments are provided for all species treated.

Keywords : Amazonia; ironstone grasslands; rocky grasslands; endemism; Gramineae.

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