Melián, E.A., Gatica, G. and Pucheta, E. 2021. Variation in Bulnesia retama (Zygophyllaceae) secondary xylem traits along an aridity gradient in central-western Argentina. Darwiniana, nueva serie. 9, 1 (May 2021), 147–161. DOI:https://doi.org/10.14522/darwiniana.2021.91.929.