An extension of a study by Kuchler published in the Geographic Rev. for 1947. Five types of woody vegetation are proposed: B(evergreen broad leaf), D(deciduous broad leaf), E(evergreen needle-leaf), N(deciduous needle-leaf), O(leaves absent). The herbaceous vegetation classes proposed are G (graminoid), H(forbs), L(lichens and mosses). Each type is subclassified as to height, t is tall, (trees 25 m, herbs 2 m); m, medium, (trees 10-25 m., herbs 0.5-2 m.); i, low, (trees avg. 10 m., shrubs 1 m.). The spacing of the plants are also considered: c[long dash]continuous; i[long dash]close; p[long dash]parkland type; r[long dash]rare yet conspicuous; b[long dash]barren. Various special features are considered also, epiphytes, lianas, succulents,cushion plants, palms, bamboos, aquatic tree ferns, tuft plants. A map (not published) containing these symbol letters depicts the world''s vegetation much more descriptively than previous vegetation maps.