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)

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

v.22:no.5(1940)

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

v.23:no.4(1944)

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)