Abstract
Three novelties inCuphea sectionMelvilla subsect.Pachycalyx are described from Brazil;C. andersonii andC. cylindracea from Pará, andC. sabulosa from Amazonas. An annotated key to the 47 species ofCuphea sectionMelvilla is provided, the first since the 1903 monograph of the family, which then included 27 species in the section. The key identifies those species ofCuphea with thick, dorsally convex, red- or yellow-tubed flowers distributed from Mexico to Argentina.
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Graham, S.A. New species of Cuphea section Melvilla (Lythraceae) and an annotated key to the section. Brittonia 42, 12–32 (1990). https://doi.org/10.2307/2807021
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DOI: https://doi.org/10.2307/2807021