Frangula mucronata (Schltdl.) Grubov Frangula mucronata (Schltdl.) Grubov in Trudy Bot. Inst. Akad. Nauk S.S.S.R., Ser. 1, Fl. Sist. Vyssh. Rast. 8: 278. 1949 sec. Villaseñor & al. 2010