[Botany • 2025] Rotala myanmarensis (Lythraceae) • A New Species from Myanmar and Taxonomic Reassessment of Rotala occultiflora var. leichhardtii

Rotala myanmarensis Arun Pr. & Sardesai, 

in Prasanth et Sardesai. 2025. 

DOI: doi.org/10.1002/njb.04956

Abstract

A new species of Rotala, viz. R. myanmarensis is described from Myanmar. It is characterized by 4-merous flowers, lanceolate petals, linear-ligulate nectary glands, and ovate seeds. Additionally, R. occultiflora var. leichhardtii is elevated to the rank of species as R. leichhardtii, based on morphological evidence, and is lectotypified. A detailed description, morphological comparative tables, and photographs are provided to aid species identification.

Keywords: amphiphyte, Myanmar, new species, Rotala

Rotala myanmarensis Arun Pr. & Sardesai sp. nov.:
 (a) Holotype, (b) detail of flowering and fruiting twig, (c) flower and fruit, (d) opened flower and fruit.

(a)–(d): all E.C. Wallace 9143 (K004761215).

 

Arun Prasanth and Milind M. Sardesai. 2025. Rotala myanmarensis sp. nov. (Lythraceae) from Myanmar and Taxonomic Reassessment of Rotala occultiflora var. leichhardtii. Nordic Journal of Botany. DOI: doi.org/10.1002/njb.04956 [26 September 2025]