Sosa, M.M. and Dematteis, M. 2014. <em>Stemodia diplohyptoides</em> (Plantaginaceae, Gratiolae): a new diploid species from South America. Phytotaxa. 186, 5 (Dec. 2014), 271–278. DOI:https://doi.org/10.11646/phytotaxa.186.5.4.