A map from 1916 of North America, Central America, Greenland, and the Caribbean to Puerto Rico showing the general distribution of vegetation types in the region. The map is color-coded to show natural vegetation in areas of ice desert, tundra, and Alpine flora, areas of northern and eastern coniferous forests, cordilleran and Pacific coniferous forests, broad-leaved forest and meadow, upland broad-leaved forest and meadow, evergreen forest, evergreen trees and shrubs, temperate grasslands, semi-deserts, deserts, tropical grasslands, tropical thorn forest, and tropical and equatorial forests.