The Rubiaceae of Ecuador, by Paul C. Standley.

v.7:no.2(1931)

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

v.18:pt.1(1937)

The forests and flora of British Honduras / by Paul C. Standley and Samuel J. Record ; in cooperation with the Conservator of Forests and the Agricultural Officer of the Colony.

v.12(1936)

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)

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)