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Issue: Vol. 597 No. 3: 16 May 2023
Type: Article
Published: 2023-05-16
DOI: 10.11646/phytotaxa.597.3.2
Page range: 208-218
Abstract views: 63
PDF downloaded: 8

A new species of Guadua (Poaceae: Bambusoideae: Guaduinae) from Pará state in Amazonian Brazil

Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, DIPEQ, Rua Pacheco Leão 915, Jardim Botânico, Rio de Janeiro, RJ, 22460-030, Brazil
Department of Ecology, Evolution and Organismal Biology, 251 Bessey Hall, Iowa State University, Ames, Iowa, 50011-4009, United States of America
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, DIPEQ, Rua Pacheco Leão 915, Jardim Botânico, Rio de Janeiro, RJ, 22460-030, Brazil
Programa de Pós-Graduação em Biodiversidade e Evolução, Coordenação de Botânica, Museu Paraense Emílio Goeldi, Av. Perimetral, 1901, Terra Firme, Belém, PA, 66077-530, Brazil
Museu Paraense Emílio Goeldi, Av. Magalhães Barata, 376, São Braz, Belém, PA, 66040-170, Brazil
Bambuseae Amazon rainforest woody bamboo taxonomy Monocots

Abstract

A new species of Guadua, a Neotropical woody bamboo genus, is here described and illustrated. Guadua leonardoana occurs in southeastern Amazonia, northern Brazil, in rainforest vegetation, and apparently is endemic to Pará state, with only two known populations restricted to the Serra dos Carajás. This species belongs to the “Guadua weberbaueri group” and the description is based on vegetative features. A morphological description, illustrations, photos in the field, scanning electronic micrographs of the foliage leaf surfaces, data on anatomy and micromorphology of the foliage leaf blade, and information on the conservation status and distribution are presented.

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