I. Supplement to the flora of Barro Colorado island, Panama [by] Leslie A. Kenoyer and Paul C. Standley.

v.4:no.6(1929)

Flora of Guatemala, by Paul C. Standley and J.A. Steyermark.

v.24:pt.4(1946)

Honduran mosses collected by Paul C. Standley, by Edwin B. Bartram.

v.4:no.9(1929)

Studies of American plants, by Paul C. Standley.

v.4:no.8(1929)

The Nyctaginaceae and Chenopodiaceae of northwestern South America, by Paul C. Standley.

v.11:no.3(1931)

Flora of Costa Rica ... by Paul C. Standley ...

v.18:pt:4(1938)

Studies of Central American plants. by Paul C. Standley and Julian A. Steyermark.

v.23:no.3(1944)

Flora of Guatemala / Paul C. Standley and Julian A. Steyermark.

v.24:pt.3(1952)

Flora of Costa Rica ... by Paul C. Standley ...

v.18:pt.3(1938)

Flora of Guatemala / by Paul C. Standley and Julian A. Steyermark.

v.24:pt.1(1958)