Summary
Rhynchospora unguinux is described as a new species of Cyperaceae from the Serra dos Carajás (Pará, Brazil). Morphological description, taxonomic comments, distribution, habitat data, a preliminary conservation status, and illustrations are provided. Rhynchospora unguinux is characterised by the caespitose habit, ciliate involucral bracts, vinaceous proximal and medial glumes with navicular apex, proximally plumose perianth bristles, and nutlets with involute claw-like margins with lamellar lobes. The new species is similar to R. subplumosa and R. trichochaeta but differs from them by the colour pattern of the spikelets, and the apex shape of the proximal and medial glumes.
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Acknowledgements
We are grateful to the Conselho Nacional de Pesquisa (CNPq) for a scholarship to LJCS (Process: 131573/2017-9); to the Programa de Capacitação Institucional (PCI/MPEG/MCTIC) for a fellowship to CSN (Process: 312832/2016-8); to the Instituto Tecnológico Vale (ITV) for technical and scientific cooperation (Process: 01205.000250/2014-10); to the ICMBio and Frederico Martins for granting collecting permits in the study area; to the curators of the consulted herbaria (BHCB, IAN, INPA, MG, and RB); to João Silveira for the preparation of illustrations and to Alexander Popovkin for the English revision. This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001.
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Schneider, L.J.C., de Sá Nunes, C., Viana, P.L. et al. Rhynchospora unguinux (Cyperaceae), a new species of Rhynchospora sect. Pauciflorae from the Serra dos Carajás, Pará, Brazil. Kew Bull 74, 60 (2019). https://doi.org/10.1007/s12225-019-9846-x
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DOI: https://doi.org/10.1007/s12225-019-9846-x