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Issue: Vol. 637 No. 3: 22 Feb. 2024
Type: Article
Published: 2024-02-22
DOI: 10.11646/phytotaxa.637.3.6
Page range: 278-284
Abstract views: 43
PDF downloaded: 2

A new species of Byttneria sect. Crassipetala (Malvaceae, Byttnerioideae) from Eastern Amazonia

Instituto de Pesquisas Jardim botânico do Rio de Janeiro, Diretoria de Pesquisas, Rua Pacheco Leão 915, Horto, 22460-030, Rio de Janeiro, Brazil.
Royal Botanic Gardens, Kew, Richmond, Surrey, United Kingdom.
alfa-taxonomy Amazonia Malvales Northern Brazil Pará Eudicots

Abstract

Byttneria (Malvaceae, Byttnerioideae) is a Pantropical genus known for its variable growth forms—ranging from shrubs to lianas—and complex floral structures. In this study, we describe a new species, Byttneria filifolia Gerace & Colli-Silva, from B. sect. Crassipetala, found in the Eastern Amazon rainforest of Brazil, specifically in Pará, and Mato Grosso states. Byttneria filifolia is distinguished from its relatives by its filiform leaves, as well as by the multiaperturate leaf nectary, growth form, leaf shape, and petal morphology. This study contributes to our comprehension of morphological patterns within Byttneria from the Amazon rainforest, underscoring the role of morphological features in species delineation.

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