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Issue: Vol. 768 No. 2: 30 Jul. 2026
Type: Article
Published: 2026-07-30
DOI: 10.11646/phytotaxa.768.2.1
Page range: 57-68
Abstract views: 55
PDF downloaded: 6

Recircumscription of Bactris glassmanii (Bactridinae, Cocoseae, Arecaceae) and description of Bactris atlantica sp. nov. from the Brazilian Atlantic Forest

Universidade Estadual de Feira de Santana; Transnordestina Av. 3789; 44036-059; Feira de Santana; Bahia; Brazil
Universidade Estadual de Feira de Santana; Transnordestina Av. 3789; 44036-059; Feira de Santana; Bahia; Brazil
Montgomery Botanical Center; 11901 Old Cutler Road; Coral Gables; Florida; United States of America
Universidade Estadual de Feira de Santana; Transnordestina Av. 3789; 44036-059; Feira de Santana; Bahia; Brazil
Monocots Arecoideae Bactridinae New taxa Palms

Abstract

Bactris comprises 79 species with a Neotropical distribution, exhibiting its greatest diversity in humid forests. Bactris glassmanii was described as part of the Flora Neotropica, characterized by staminate flowers with pedicels ca. 1 mm long. Based on field expeditions in the Brazilian Atlantic Forest and analyses of herbarium material, we propose a taxonomic re-delimitation of B. glassmanii into two distinct taxa, including a new species here described, named B. atlantica. They are distinguished mainly by the leaflets’ apex form, number of rachilla, and the size of the staminate flower pedicel. Both are endemic to the Brazilian Atlantic Forest. B. glassmanii occurs in Bahia and Pernambuco states, and B. atlantica occurs from Sergipe to Espírito Santo states, especially in humid forests. The new species is provisionally considered as Endangered (EN) based on IUCN criteria.

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How to Cite

Lira, M.M., Ribeiro, C.L., Noblick, L. & Oliveira, R.P. (2026) Recircumscription of Bactris glassmanii (Bactridinae, Cocoseae, Arecaceae) and description of Bactris atlantica sp. nov. from the Brazilian Atlantic Forest. Phytotaxa 768 (2): 57–68. https://doi.org/10.11646/phytotaxa.768.2.1