Astrolepis obscura J.B.Beck & Windham Astrolepis obscura J.B.Beck & Windham, Syst. Bot. 35(2): 232 (fig. 5J-L). 2010 sec. Beck, J. B. 2010Holotype: Mexico, Guanajuato: 10 km NW of Xichú, 4 Feb 1997, Pérez, E. 3559 (NY)