@book{bhlpg2396539, title = {Publication. Field Museum of Natural History Botanical series}, volume = {v.19:pt.1 (1938)}, url = {https://www.biodiversitylibrary.org/page/2396539}, publisher = {Field Museum of Natural History}, author = {Field Museum of Natural History. }, year = {1938}, pages = {Page 189}, } @book{bhlpg2375990, title = {Publication. Field Museum of Natural History Botanical series}, volume = {v.19:pt.2 (1938)}, url = {https://www.biodiversitylibrary.org/page/2375990}, publisher = {Field Museum of Natural History}, author = {Field Museum of Natural History. }, year = {1938}, pages = {Page 580}, }