Reinstating Distimake potentilloides (Convolvulaceae): taxonomy, lectotypification, and distribution in northern Amazon
DOI:
https://doi.org/10.70782/heringeriana.v20ib.918115Keywords:
Conservation, herbarium, morphology, nomenclatureAbstract
A comprehensive analysis of herbarium specimens of Distimake from Central and South America revealed the presence of more than one morphological type among specimens previously identified as Distimake quinquefolius. Further investigation, including the examination of historical names and type specimens treated as synonyms of D. quinquefolius, demonstrated the existence of a distinct but previously overlooked species. Here, we re-establish Distimake potentilloides as a separate species, with a relatively restricted distribution in the northern Amazon region. We provide an updated taxonomic description, lectotypification, discuss the diagnostic morphological characters that distinguish it from allied species, particularly D. cissoides and D. quinquefolius, and present a preliminary conservation assessment. In addition, we provide a key to all Distimake species occurring in the Guiana Shield.
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Copyright (c) 2026 Fernanda Satori Petrongari, Rosângela Simão-Bianchini, Ana Rita Giraldes Simões
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