Prestonia portobellensis (Beurl.) Woodson Prestonia portobellensis (Beurl.) Woodson in Ann. Missouri Bot. Gard. 18(4): 553–554. 1931 sec. Juárez-Jaimes & al. 2007=Prestonia guatemalensis Woodson in Ann. Missouri Bot. Gard. 23(2): 339-340. 1936 syn. sec. Morales 2016