- The Cactaceae, Vol. 1
- The Cactaceae: Descriptions and Illustrations of Plants of the Cactus Family; Volume 1
- Umbelliferae of E. United States
- List of Plants Collected by Dr. Edward Palmer in 1890 in Lower California and Western Mexico, At: 1. La Paz, 2. San Pedro Martin Island, 3. Raza Island, 4. Santa Rosalia and Santa Agueda, 5. Guaymas
- Notes on useful plants of Mexico