A new species of Rhynchospora section Pluriflorae (Cyperaceae) from the southwestern edge of the Brazilian Amazon-Reference-Cited by-同舟云学术

A new species of Rhynchospora section Pluriflorae (Cyperaceae) from the southwestern edge of the Brazilian Amazon

Published:2023-09 Issue:3 Volume:53 Page:208-214
ISSN:1809-4392
Container-title:Acta Amazonica
language:
Short-container-title:Acta Amaz.

Author:

ALVES Karina de Nazaré Lima¹^ORCID,THOMAS William Wayt²,ENGELS Mathias Erich³,GIL André dos Santos Bragança⁴

Affiliation:

1. Universidade Federal Rural da Amazônia/Museu Paraense Emílio Goeldi, Brazil

2. The New York Botanical Garden, USA

3. Universidade Federal do Paraná, Brazil

4. Museu Paraense Emílio Goeldi - MPEG, Brazil

Abstract

ABSTRACT A new species of Rhynchospora (Cyperaceae) only known from the Parecis plateau, on the southwestern edge of the Brazilian Amazon, is described here. Rhynchospora parecisensis was found growing only in open environments of deciduous seasonal forest and savanna enclaves in the midst of seasonal evergreen forest, in the state of Mato Grosso, western Brazil. Rhynchospora parecisensis differs from the other species of Rhynchospora sect. Pluriflorae subsect. Subebracteatae by the distally puberulent to pubescent glumes. The new species resembles Rhynchospora acanthoma, but differs from it by the subtriangular to quadrangular scapes in cross-section and the distally puberulent to pubescent glumes, with ciliate to ciliolate margins. Taxonomic comments, illustrations and a distribution map are also provided.

Publisher

FapUNIFESP (SciELO)

Subject

General Agricultural and Biological Sciences

Link

http://www.scielo.br/scielo.php?script=sci_pdf&pid=S0044-59672023000300208&tlng=en

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