You are here


Studies of American Plants by Paul C. Standley from "Publication. Field Museum of Natural History. Botanical series. v 4, no. 8"
Mosses of Western Mexico Collected by Mrs. Ynes Mexia from "Journal of the Washington Academy of Sciences, v. 18 no. 21."
Title page from "Contributions from the United States National Herbarium v. 26, part 8"