Verbatim text: Fernald, M. L. 1902. The relationships of some American and Old World birches. Amer. J. Sci. 169: 167--194.
Author: Fernald, M.L.
Year: 1902
Title: The relationships of some American and Old World birches
Journal: Amer. J. Sci
Volume: 169
Pages: 167–194