Studies of American plants. by Paul C. Standley.

v.17:no.2(1937)

The Rubiaceae of Colombia, by Paul C. Standley.

v.7:no.1(1930)

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

v.23:no.2(1944)

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

v.18:pt.2(1937)

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

v.23:no.1(1943)

Studies of American plants. by Paul C. Standley.

v.17:no.3(1937)

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

v.4:no.9:index(1929)

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

v.23:no.5(1947)

Studies of American plants. by Paul C. Standley.

v.22:no.2(1940)

The Rubiaceae of Bolivia, by Paul C. Standley.

v.7:no.3(1931)

The Rubiaceae of Venezuela, by Paul C. Standley.

v.7:no.4:index(1931)

Studies of American plants. by Paul C. Standley.

v.8:no.1(1930)

Studies of American plants. by Paul C. Standley.

v.11:no.5(1936)

Studies of American plants. by Paul C. Standley.

v.22:no.1(1940)

The Rubiaceae of Venezuela, by Paul C. Standley.

v.7:no.4(1931)