Ariocarpus trigonus
Ariocarpus trigonus in Bot. Jahrb. Syst. 24(5): 550. 1898 sec. Hernández & Gómez-Hinostrosa 20111 wfo-0000547487
- ≡Anhalonium trigonum in Bois, Dict. Hort.: 90. 1893 syn. sec. Hunt 20062 wfo-0000536803
- ≡Ariocarpus retusus subsp. trigonus in Haseltonia 5: 18. 1998 syn. sec. Hunt 20062 wfo-0000547481
- =Ariocarpus trigonus var. minor in Kaktusy (Brno) 12: 3. 1976 syn. sec. TROPICOS 1988+3 wfo-0000547490
- =Ariocarpus trigonus var. horacekii in Cactaceae etc. 7: 97. 1997 syn. sec. TROPICOS 1988+4 wfo-0000547489
- ≡Ariocarpus elongatus subsp. horacekii in Acta Mus. Richnov., Sect. Nat., 5: 36. 1998 syn. sec. TROPICOS 1988+4 wfo-0000547452