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Article
Published: 2021-09-21

Ludwigia irregularis (Onagraceae) a rare new species from southern Brazil, and typification of the morphologically similar L. myrtifolia

Herbário Barbosa Rodrigues, Av. Cel. Marcos Konder, 800, Centro, CEP 88301-302, Itajaí, SC, Brazil.
Universidade Regional de Blumenau, Rua Antônio da Veiga, 140, Itoupava Seca, CEP 89030-903, Blumenau, SC, Brazil.
Universidade Regional de Blumenau, Rua Antônio da Veiga, 140, Itoupava Seca, CEP 89030-903, Blumenau, SC, Brazil.
Universidade Federal do Mato Grosso do Sul, Câmpus de Três Lagoas, CEP 79613-000, Três Lagoas, MS, Brazil
Jussiaea Myrtales threatened species typification Rio Grande do Sul Santa Catarina Eudicots

Abstract

In this work, we describe a new species of Ludwigia from southern Brazil. We provide a detailed morphological account, field photographs and a distribution map. We also discuss the morphology and taxonomy of the new species in relation to morphologically similar species and assess its conservation status. Finally, we typify the name L. myrtifolia, which refers to the species morphologically most similar to the new species, and we discuss the distribution of this species.

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