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)

Tropical American plants, VII / Louis O. Williams.

v.31:no.6(1965)

Tropical American plants, VI / Louis O. Williams.

v.31:no.2(1964)

Tropical American plants, IX / Louis O. Williams.

v.31:no.18(1968)

Tropical American plants, V / Louis O. Williams.

v.29:no.10(1963)

Tropical American plants, VIII / Louis O. Williams.

v.31:no.10(1967)

Tropical American plants, III / Louis O. Williams.

v.29:no.7(1962)

Tropical American Myrtaceae; notes on generic concepts and descriptions of previously unrecognized species.

v.29:no.3(1956)

Tropical American Myrtaceae, II ; notes on generic concepts and descriptions of previously unrecognized species / Rogers McVaugh.

v.29:no.8(1963)

New species of fishes from tropical America.

v.7:no.7(1909)

Tropical American plants, XVII / Louis O. Williams.

v.36:no.10(1975)

Bignoniaceae of tropical North America [by] Louis O. Williams.

v.36:no.4(1973)