Clarifying the nomenclatural uncertainties surrounding Cistus pouzolzii Delile, C. × florentinus Lam., and C. × varius Pourr. (Cistaceae)

Three names in the genus Cistus L. are analysed from a nomenclatural perspective: Cistus pouzolzii Delile, C. × florentinus Lam., and C. × varius Pourr. The corresponding lectotypes for C. pouzolzii Delile and C. varius Pourr. are designated based on specimens preserved in the herbarium of Muséum national d’Histoire naturelle de Paris, at P. The name C. × florentinus was studied by Demoly, who designated its lectotype from a specimen preserved in the P herbarium in 1994. Through the typification of C. × varius Pourr., we conclude, as Demoly previously stated, that the name C. varius Pourr. should definitively be considered a later synonym of C. × florentinus Lam., the priority name for naming the hybrid between C. monspeliensis L. and C. salviifolius L. Finally, the lectotypification of C. pouzolzii L. led us to conclude that it is an independent species unrelated to the aforementioned hybrid.