Ariocarpus trigonus (F.A.C.Weber) K.Schum. in Bot. Jahrb. Syst. 24(5): 550. 1898
Ariocarpus trigonus in Bot. Jahrb. Syst. 24(5): 550. 1898
is new combination for Anhalonium trigonum in Bois, Dict. Hort.: 90. 1893
Ariocarpus trigonus in Bot. Jahrb. Syst. 24(5): 550. 1898