1. Contributions from U. S. National Herbarium, v. 5, no. 1; Jan. 25, 1897. Bookmark Corporate/Agency Authors: Botany Division and Interior Department Publisher: Botany Division Date: [January 1897]
2. Contributions from United States National Herbarium, v. 3, no. 9; Aug. 5, 1896. Bookmark Corporate/Agency Authors: Botany Division and Interior Department Publisher: Botany Division Date: [August 1896]