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

v.19:pt.2(1938)

The North American species of Rumex, by K. H. Rechinger, jr.

v.17:no.1(1937)

I. New species of Cuban Senecioneae. II. Diagnoses of new species and notes on other spermatophytes, chiefly from Mexico and Central America. By Jesse More Greenman.

v.2:no.8(1912)

The planktonic freshwater species of Microcystis, by Francis Drouet ... and William A. Daily.

v.20:no.3(1939)

Revision of the North American species of Xanthium, by Charles Frederick Millspaugh and Earl Edward Sherff.

v.4:no.2(1919)

A preliminary study of Hawaiian species of the genus Rauvolfia. Additions to the genera Scalesia and Hidalgoa.

v.23:no.7(1947)

New species of Croton from Guatemala, by Leon Croizat.

v.22:no.8(1942)

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

v.19:pt.1(1938)

New species in the palm genus Syagrus Mart., II / [by] S.F. Glassman.

v.31:no.13(1968)

New species in the palm genus Syagrus Mart. / S.F. Glassman.

v.31:no.9(1967)

Two new species of palms from Nicaragua [by] S. F. Glassman.

v.31:no.1(1964)

New species of Digitaria, Pennisetum, and Poa (Gramineae) from Costa Rica / Richard W. Pohl.

v.38:no.2(1976)

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)

Austral Hepaticae IX : Anastrophyllum tristanianum, a new species from Tristan da Cunha / John J. Engel.

v.38:no.7(1977)