Floristic richness of the Sierra de Zapalinamé, Coahuila, Mexico

1. Encina-Domínguez, J.A.
2. Estrada-Castillón, E.
3. Villarreal-Quintanilla, J.A.
4. Villaseñor, J.L.
5. Cantú-Ayala, C.M.
6. Arévalo, J.R.