Waltheria marielleae (A–F), W. ackermanniana (G), W. indica (H), and W. rotundifolia (I). A. One population. B. General aspect showing greyish leaf indumentum. C. Detail of a flowering branch showing leaves and inflorescences arrangement. D. Stipule and inflorescence detail. E. Longistylous flowers showing the fan-plumose stigmas exserted. F. Brevistylous flowers showing stamens exserted. G. Detail of one inflorescence with a brevistylous flower. H. Inflorescence and detail of the homostylous flower. I. Inflorescence with brevistylous flowers.

  Part of: Silva Coutinho T, Analía Sader M, Pedrosa-Harand A, Alves M (2022) Waltheria marielleae (Byttnerioideae, Malvaceae), a new species from north-eastern Brazil supported by morphological and phylogenetic evidence. Plant Ecology and Evolution 155(3): 353-362. https://doi.org/10.5091/plecevo.94921