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)

Flora of the Lancetilla Valley, Honduras, by Paul C. Standley.

v.10(1931)

Flora of Yucatan, by Paul C. Standley.

v.3:no.3(1930)

Flora of Guatemala / Paul C. Standley and Louis O. Williams.

v.24:pt.8:no.3(1967)

Flora of Guatemala / Johnnie L. Gentry, Paul C. Standley.

v.24:pt.10:no.1-2(1974)

Flora of Guatemala / Paul C. Standley and Louis O. Williams.

v.24:pt.9:no.3-4(1973)

Flora of Guatemala / Paul C. Standley and Louis O. Williams.

v.24:pt.7:no.1(1961)

Flora of Guatemala / Paul C. Standley and Louis O. Williams.

v.24:pt.7:no.4(1963)

Flora of Guatemala / Paul C. Standley and Louis O. Williams.

v.24:pt.7:no.2(1962)

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

v.24:pt.6(1949)

Flora of Guatemala / by Paul C. Standley and Louis O. Williams.

v.24:pt.11:no.1-3(1975)

Flora of Guatemala / Paul C. Standley and Louis O. Williams.

v.24:pt.9:no.1-2(1970)

Flora of Guatemala : families Leguminosae, Geraniaceae, Oxalidaceae, Tropaeolaceae, Linaceae, Erythroxylaceae, Zygophyllaceae, Rutaceae, Simaroubaceae, Burseraceae, Meliaceae, and Malpighiaceae / by Paul C. Standley and Julian A. Steyermark.

v.24:pt.5(1946)

Flora of Guatemala / Paul C. Standley, Louis O. Williams, Dorothy Nash Gibson.

v.24:pt.10:no.3-4(1974)