Collected
16 August 1990.
Tamaulipas, Mexico
Locality: Along highway, 11.7 mi. S of jct. with Hwy 85 (just N of Ciudad Victoria).
Environment description: Sierra Madre Oriental. Rocky limestone slopes. Lower edge of oak woodland with Agave lophantha, Bouvardia terniflora, Sabal sp., Quercus sp., Hechtia glomerata, Agave americana, Brongniartia sp.