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Issue: Vol. 751 No. 3: 16 Apr. 2026
Type: Article
Published: 2026-04-16
DOI: 10.11646/phytotaxa.751.3.5
Page range: 295-300
Abstract views: 0
PDF downloaded: 0

Quararibea latifolia (Malvaceae), a new and possibly extinct species from the Atlantic Forest of Minas Gerais, Brazil

Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Diretoria de Pesquisas, Rua Pacheco Leão, 915, CEP 2246-030, Rio de Janeiro, Brazil
WIS Herbarium University of Wisconsin-Madison, Birge Hall, 430 Lincoln Drive, Madison, WI 53706, USA
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Diretoria de Pesquisas, Rua Pacheco Leão, 915, CEP 2246-030, Rio de Janeiro, Brazil
conservation status Matisieae taxonomy Zona da Mata Mineira Eudicots

Abstract

During our recent taxonomic revision of Quararibea in Brazil, we encountered a new species from the Atlantic Forest of Minas Gerais, Brazil. We here describe and illustrate Quararibea latifolia, which is morphologically similar to Q. bovinii and Q. bragae due to the fasciculate trichomes on its branches and petioles, but differing by its domatia morphology, petiole length, leaf width, and the indumentum of its calyx, petals, and staminal column. This new species is known only from a single collection made in 1944 and our recent efforts to relocate living populations were unsuccessful. As it has not been recorded in over 80 years, we assess it as Critically Endangered (Possibly Extinct). We provide a morphological description, taxonomic comments, photographs, a distribution map, an assessment of its conservation status, and a table comparing the new species morphology to relevant congeners.

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How to Cite

Ferreira, C.D.M., Alverson, W.S. & Bovini, M.G. (2026) Quararibea latifolia (Malvaceae), a new and possibly extinct species from the Atlantic Forest of Minas Gerais, Brazil. Phytotaxa 751 (3): 295–300. https://doi.org/10.11646/phytotaxa.751.3.5