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Issue: Vol. 695 No. 1: 25 Mar. 2025
Type: Article
Published: 2025-03-25
DOI: 10.11646/phytotaxa.695.1.5
Page range: 105-114
Abstract views: 81
PDF downloaded: 6

Rhynchospora shepherdii (Cyperaceae), a new species of R. section Pauciflorae, and the first evidence of amphi-basicarpy in the genus

Universidade Federal Rural da Amazônia/Museu Paraense Emílio Goeldi; Programa de Pós-Graduação Ciências Biológicas-Botânica Tropical, Avenida Perimetral 1901, Terra Firme, 66077-830, Belém, PA, Brazil
New York Botanical Garden, 2900 Southern Boulevard, Bronx, NY, 10458-5126, U.S.A.
Museu Paraense Emílio Goeldi - MPEG, Campus de Pesquisa, Coordenação de Botânica - COBOT, Av. Perimetral 1901, Terra Firme, 66077-830, Belém, PA, Brazil
Rhynchosporae Cerrado Atlantic Forest sedge meadows taxonomy Monocots

Abstract

During an ongoing taxonomic revision, a new species of Rhynchospora section Pauciflorae subsect. Pauciflorae subsect. Plumososetosae Kükenthal was found in the savannas (Cerrados) of Minas Gerais, Southeast Brazil. The new taxon is also the first record of amphi-basicarpy for the genus Rhynchospora. The new species is compared to Rhynchospora armerioides J. Presl & C. Presl, R. barbata (Vahl) Kunth and R. hirta (Nees) Boeckeler, and differs from them by the presence of amphi-basicarpic spikelets, upper spikelet length, number of glumes and male flowers per upper spikelet, nutlet surface texture, style base margins, and perianth bristle length. Here we provide a new species description, taxonomic comments, distribution map, habitat, and illustrations.

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How to Cite

ALVES, KARINA DE NAZARÉ LIMA, WILLIAM WAYT THOMAS, and ANDRÉ DOS SANTOS BRAGANÇA GIL. 2025. “<em>Rhynchospora Shepherdii </em>(Cyperaceae), a New Species of <em>R</em>. Section <em>Pauciflorae</Em>, and the First Evidence of Amphi-Basicarpy in the Genus”. Phytotaxa 695 (1):105-14. https://doi.org/10.11646/phytotaxa.695.1.5.