@book{bhlpg31085617, title = {1997 IUCN red list of threatened plants }, volume = {1997}, url = {https://www.biodiversitylibrary.org/page/31085617}, publisher = {}, author = {}, year = {1997}, pages = {Page 258}, } @book{bhlpg31086122, title = {1997 IUCN red list of threatened plants }, volume = {1997}, url = {https://www.biodiversitylibrary.org/page/31086122}, publisher = {}, author = {}, year = {1997}, pages = {Page 763}, } @book{bhlpg51148750, title = {Flora del bajío y de regiones adyacentes }, volume = {fasc.152 (2007)}, url = {https://www.biodiversitylibrary.org/page/51148750}, publisher = {Instituto de Ecología, A C}, author = {Instituto de Ecología, A C. }, year = {2007}, pages = {Page 9}, } @book{bhlpg13010648, title = {The University of Texas herbaria : type register }, volume = {v. 9 (1994)}, url = {https://www.biodiversitylibrary.org/page/13010648}, publisher = {Plant Resources Center, Dept. of Botany, University of Texas}, author = {Todzia, Carol A., 1955 -}, year = {1994}, pages = {Page 140}, }