List of plants collected by Dr. Edward Palmer in 1890 in Lower California and western Mexico, at La Paz, San Pedro Martin Island, Raza Island, Santa Rosalia and Santa Agneda, and Guaymasv. 1No. 363–90
Vasey, George and Rose, J. N. 1890. "List of plants collected by Dr. Edward Palmer in 1890 in Lower California and western Mexico, at La Paz, San Pedro Martin Island, Raza Island, Santa Rosalia and Santa Agneda, and Guaymas." Contributions from the United States National Herbarium, 1, (3) 63–90.