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Issue: Vol. 669 No. 2: 22 Oct. 2024
Type: Article
Published: 2024-10-22
DOI: 10.11646/phytotaxa.669.2.8
Page range: 159-164
Abstract views: 240
PDF downloaded: 18

Begonia tamoiana (Begoniaceae), a new species from Atlantic Forest of Rio de Janeiro State, Brazil

Herbário RBR, Departamento de Botânica, Instituto de Ciências Biológicas e da Saúde, Universidade Federal Rural do Rio de Janeiro, BR-465, km 7, 23890-000, Seropédica, Rio de Janeiro, Brazil
Botany, School of Natural Sciences, Trinity College Dublin, Ireland. Royal Botanic Gardens Edinburgh, 20A Inverleith Row, Edinburgh, UK.
Departamento de Ciências Florestais, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Av. Pádua Dias, 11, 13418-900, Piracicaba, São Paulo, Brazil
Atlantic Coastal Forest conservation endemism taxonomy Eudicots

Abstract

Begonia tamoiana is a new species endemic to Brazilian Atlantic Rainforest, a biome rich in endemism and species diversity, and it is described and illustrated herein. Begonia tamoiana is morphologically similar to B. magdalenensis but differs in having abaxial leaf blades with simple trichomes throughout (vs. 2-branched trichomes throughout) and ovate wings capsule (vs. triangular). A description, ecological comments, illustrations, color photographs, and a provisional IUCN conservation assessment of this species are provided. Begonia tamoiana is preliminarily classified as Vulnerable (VU) due to its very small populations and restricted distribution.

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