Cabral, T.; Quezada, I. M.; Saldaña, A. Variation in Anatomical Traits Associated With Water Conduction and Storage in Three Populations of Maihuenia Poeppigii (Otto Ex Pfeiff.) K. Schum. (Cactaceae) in an Altitudinal Gradient. Gayana Bot. 2016, 73, 9-18.