@book{bhlitem214332, title = {George Engelmann : botanical notebook 5 : Mammilaria, Leuchtenbergia, Discocactus, and Melocactus }, volume = {Box 3: Folder 16: Cactaceae: Leuchtenbergia, Discocactus: 1857-1869}, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/214332}, note = {https://www.biodiversitylibrary.org/bibliography/122269}, publisher = {}, author = {Engelmann, George,}, year = {1857}, pages = {31}, keywords = {1809-1884|Botanical illustration|Cactaceae|Discocactus|Engelmann, George,|Leuchtenbergia|Mammillaria (Cactus)|Melocactus|North America|Plant collecting|}, }