Taxonomic novelties in Adenocalymma (Bignonieae, Bignoniaceae) endemic to the Atlantic Forest

This dataset contains the digitized treatments in Plazi based on the original journal article Fonseca, Luiz Henrique M., da Silva Ribeiro, Ricardo (2026): Taxonomic novelties in Adenocalymma (Bignonieae, Bignoniaceae) endemic to the Atlantic Forest. Plant Ecology and Evolution 159 (1): 3-11, DOI: 10.5091/plecevo.172513AbstractBackground and aims – During ongoing morphological studies of Adenocalymma, we realized that nomenclatural updates are necessary in the genus. Here, we propose a new circumscription of A. acutissimum and the description of the new species A. darwinii.Material and methods – Morphological and phylogenetic evidence support the new circumscription of A. acutissimum, while the new species is recognized based on morphological grounds and compared to A hirtum and A. salmoneum.Key results – We removed the taxa A. comosum, A. comosum var. lanceolatum, and A. nitidum as synonyms of A. acutissimum. We also presented a detailed description for A. darwinii sp. nov., an illustration, and information on its distribution, habitat, phenology, and extinction risk. A map showing the occurrence of both A. comosum and A. darwinii sp. nov. is shown.Conclusion – These results emphasize once again the importance of taxonomic studies in the Brazilian Atlantic Forest and highlight conservation concerns for its flora.