A new name and typifications in Rhynchospora section Longirostres (Cyperaceae)

PHILIPY WEBER; WILLIAM WAYT THOMAS; SILVIA TERESINHA SFOGGIA MIOTTO

doi:10.11646/phytotaxa.472.1.7

Issue: Vol. 472 No. 1: 18 November 2020

Type: Article

Published: 2020-11-18

DOI: 10.11646/phytotaxa.472.1.7

Page range: 56–62

Abstract views: 66

PDF downloaded: 1

**A new name and typifications in Rhynchospora section Longirostres (Cyperaceae)**

PHILIPY WEBER⁺⁻
WILLIAM WAYT THOMAS⁺⁻
SILVIA TERESINHA SFOGGIA MIOTTO⁺⁻

Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Botânica, Av. Bento Gonçalves, 9500, Bloco IV, Porto Alegre, Rio Grande do Sul, 91501-970, Brazil

New York Botanical Garden, Bronx, NY 10458-5126, New York, United States of America

Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Botânica, Av. Bento Gonçalves, 9500, Bloco IV, Porto Alegre, Rio Grande do Sul, 91501-970, Brazil

Monocots beaksedges lectotype neotype

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Abstract

During the preparation of a taxonomic revision of Rhynchospora sect. Longirostres, we found several scientific names that needed to be lectotypified or neotypified. In addition, Rhynchospora amazonica subsp. guianensis is being recognized at the level of species and requires a new name, Rhynchospora rionegrensis. This species is described and illustrated and differs from R. amazonica by its lateral and terminal, generally turbinate inflorescences, brown spikelet scales, loose fascicles, and longer stylopodium. Lectotypes are chosen for Calyptrostylis longirostris (the basionym of R. rionegrensis), R. amazonica, and R. macrostachya, and a neotype chosen for R. stenocarpa.

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