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Issue: Vol. 606 No. 4: 1 Aug. 2023
Type: Article
Published: 2023-08-01
DOI: 10.11646/phytotaxa.606.4.5
Page range: 295-300
Abstract views: 132
PDF downloaded: 15

Catostemma lanceolatum (Malvaceae/Bombacoideae/Adansonieae), a new species from the Brazilian Amazon

Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Diretoria de Pesquisas, Rua Pacheco Leão, 915, CEP 22.460-030, Rio de Janeiro, Brazil
WIS Herbarium, University of Wisconsin-Madison, Birge Hall, 430 Lincoln Drive, Madison, Wisconsin 53706, USA
Instituto Nacional de Pesquisas da Amazônia, Ecologia, Monitoramento e Uso Sustentável de Áreas Úmidas, Av. André Araújo, 2936, CEP 69067-375, Manaus, AM, Brazil
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Diretoria de Pesquisas, Rua Pacheco Leão, 915, CEP 22.460-030, Rio de Janeiro, Brazil
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Diretoria de Pesquisas, Rua Pacheco Leão, 915, CEP 22.460-030, Rio de Janeiro, Brazil
Eudicots Amazonas conservation taxonomy Uatumã

Abstract

We describe Catostemma lanceolatum, a new species endemic to the Brazilian Amazon, which at present is known only in the state of Amazonas. This new taxon is similar to C. altsonii, mainly by the length of its pedicels, but can be distinguished by the shape of its leaflets, the shape and size of the bracteoles, size of its hypanthium, number of calyx lobes, and the number and length of its filaments. We present a morphological description, taxonomic comments, an illustration, a distribution map, an assessment of its conservation status, and a comparative analysis of the new species and C. altsonii, the most morphologically similar species.

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