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Issue: Vol. 777 No. 2: 30 Sept. 2026
Type: Article
Published: 2026-09-30
DOI: 10.11646/phytotaxa.777.2.3
Page range: 131-143
Abstract views: 62
PDF downloaded: 4

Ruellia kameyamae, a new species of Ruellia sect. Strobiliformes and the first representative of the section from Brazil

Programa de Pós-Graduação em Ecologia e Recursos Naturais (PPG-ERN); Universidade Federal de São Carlos; CEP 13565-905; São Carlos; SP; Brazil; Instituto de Pesquisas Ambientais; Herbário SP; CEP 04301-902; São Paulo; SP; Brazil
Instituto Nacional de Pesquisas da Amazônia; Núcleo de Apoio à Pesquisa em Rondônia; CEP 76801-058; Porto Velho; RO; Brazil
Universidade de Taubaté; Instituto de Biociências; CEP 12030-180; Taubaté; SP; Brazil
Departamento de Botânica; Instituto de Biociências; Universidade de São Paulo. Edifício Aylthon Brandão Joly (Herbário SPF); CEP 05508-090; São Paulo; SP; Brazil
University of Colorado; Museum of Natural History and Department of Ecology and Evolutionary Biology; 80309; Boulder; CO; U.S.A.
Eudicots Lamiales Ruellieae

Abstract

During ongoing phylogenetic and taxonomic studies of New World Ruellia, with emphasis on the Cerrado biome of central Brazil, a new species was discovered. The new species represents the only Brazilian member of the Neotropical clade Ruellia sect. Strobiliformes. Morphologically, the new species resembles R. densa, a species belonging to Ruellia sect. Siphonacanthus, and with which it has been frequently confused in herbaria and floristic studies. Here, we describe and illustrate Ruellia kameyamae, provide a distribution map, habitat and ecological notes, phenological information, and a diagnostic comparison between R. kameyamae and R. densa.

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How to Cite

Fernandes, U.G., Silva, F.A.D., Indriunas, A., Sartin, R.D. & Manzitto-Tripp, E.A. (2026) Ruellia kameyamae, a new species of Ruellia sect. Strobiliformes and the first representative of the section from Brazil. Phytotaxa 777 (2): 131–143. https://doi.org/10.11646/phytotaxa.777.2.3