North American flora.

v. 14, pt. 1 (1923)

North American flora.

v. 15, pt. 3 (1943)

North American flora.

v. 15A, pt. 1 (1946)

North American flora.

v. 22, pt. 2 (1963)

North American flora.

v. 22, pt. 5 (1963)

North American flora.

v. 29, pt. 2 (1938)

Wrightia.

v.1 (1945-1951)

Wrightia.

v.2 (1959-1963)

Wrightia.

v.3 (1961-1966)

Wrightia.

v.4 (1968-1971)

Wrightia.

v.5 (1972-1977)

Wrightia.

v.6 (1978-1980)

Wrightia.

v.7 (1981-1984)

Moritzia DC. (Boraginaceae): a genus new to North America / Johnnie L. Gentry, Jr.

v.36:no.2(1972)

A partial revision of Paullinia (Sapindaceae) for Ecuador, Peru, and Bolivia, part I / Donald R. Simpson.

v.36:no.12(1976)