Important Forest Trees of the United States

Rare Tropical Trees of South Florida

Southwestern Trees: A Guide to the Native Species of New Mexico and Arizona

Rare and Local Trees in the National Forests

Common Forest Trees of Hawaii: Native and Introduced, Volumes 679-682

Rare and Endemic Trees of Puerto Rico and the Virgin Islands

Guide to Alaska Trees

Trees and Shrubs of the United States: A Bibliography for Identification

Common Trees of Puerto Rico and the Virgin Islands

Subdivisions of the Genus Pinus (pines)

Alaska Trees and Shrubs

Geographic Distribution of the Pines of the World