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

v.23:no.5(1947)

Studies of the American flora - I / By Julian A. Steyermark.

v.17:no.5(1938)

Studies of American plants. by Paul C. Standley.

v.22:no.2(1940)

Contributions to North American Euphorbiaceae-- v: 1. "Euphorbia adenoptera" in North America. 2. Chamaesyceae novae. 3. Notulae hypericifoliaearum. By Charles Frederick Millspaugh.

v.2:no.10(1914)

Studies of American plants. by Paul C. Standley.

v.8:no.1(1930)

The American species of Passifloraceae, by Ellsworth P. Killip.

v.19:pt.1(1938)

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)

Entomological news.

v. 41 1930

Entomological news.

v. 66-67 1955

Entomological news, and proceedings of the Entomological Section of the Academy of Natural Sciences of Philadelphia.

v. 15 (1903)

Entomological news.

v. 52-53 1941

Tropical American plants, II / Louis O. Williams.

v.29:no.6(1961)

Tropical American plants, X / Louis O. Williams.

v.32:no.4(1968)

Tropical American plants, XI / Louis O. Williams.

v.32:no.12(1970)