Paul Carpenter Standley

Flora Of Yucatan

Flora of Barro Colorado Island, Panama (Classic Reprint)

Contributions From the United States National Herbarium, Vol. 20: Part I; The Mexican and Central American Species of Ficus (Classic Reprint)

Trees and Shrubs of Mexico

Studies of Tropical American Phanerogams-No. 1 (Classic Reprint)

North American Flora, Vol. 32

Flora of the District of Columbia and Vicinity. by A.S. Hitchcock and Paul C. Standley, with the Assistance of the Botanists of Washington

The Mexican and Central American Species of Ficus

Studies of tropical American phanerogams Number 1

Trees and Shrubs of Mexico Volume 2

The Allioniaceae of the United States with Notes on Mexican Species...

Flora of New Mexico. by E.O. Wooton and Paul C. Standley

Flora of Glacier National Park Montana

Flora of New Mexico

Studies of Tropical American Phanerogams, Issue 1

The Type Localities of Plants First Described From New Mexico