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Issue: Vol. 253 No. 1: 21 March 2016
Type: Article
Published: 2016-03-21
DOI: 10.11646/phytotaxa.253.1.6
Page range: 81–89
Abstract views: 32
PDF downloaded: 1

Calydorea minuana, a new species of Iridaceae from Río de La Plata Grasslands, South America

Curso de Ciências da Natureza, Universidade Federal do Pampa, Av. 21 de Abril 80, Dom Pedrito, Rio Grande do Sul, 96450-000, Brazil. Núcleo de Estudos Botânicos Balduíno Rambo, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, 97105-900, Brazil.
Curso de Ciências Biológicas, Universidade da Região da Campanha, Praça Getúlio Vargas 47, Alegrete, Rio Grande do Sul, 97542-570, Brazil. Núcleo de Estudos Botânicos Balduíno Rambo, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, 97105-900, Brazil.
Curso Superior Tecnólogo em Gestão Ambiental, Universidade da Região da Campanha, BR 293, Km 238, Dom Pedrito, Rio Grande do Sul, 96450-000, Brazil. Núcleo de Estudos Botânicos Balduíno Rambo, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, 97105-900, Brazil.
Biodiversity Grasslands Iridoideae Phytogeography Taxonomy Tigridieae Monocots South America

Abstract

A new species of Calydorea is described and illustrated for northern Uruguay and southwest Rio Grande do Sul State, Brazil. This new species is closely related to C. nuda however, differs by its dark-blue or dark violet-blue flowers, stamens with white-cream filaments and bigger anthers, and style branches free towards the top. Data on phenology, geographic distribution, conservation, and habitat are provided. Moreover, a table to segregate this new species from its related species, and an identification key for the Calydorea species occurring in the sub-region of “Northern Campos” of Río de La Plata Grasslands are supplied.