@book{bhlpg39706684, title = {Contributions from the Gray Herbarium of Harvard University }, volume = {no. 206-208 1976-78}, url = {https://www.biodiversitylibrary.org/page/39706684}, publisher = {Harvard University}, author = {Harvard University. Gray Herbarium. }, year = {1977}, pages = {Page 72}, } @book{bhlpg39706678, title = {Contributions from the Gray Herbarium of Harvard University }, volume = {no. 206-208 1976-78}, url = {https://www.biodiversitylibrary.org/page/39706678}, publisher = {Harvard University}, author = {Harvard University. Gray Herbarium. }, year = {1977}, pages = {Page 66}, }