The genera of North American plants, and a catalogue of the species, to the year 1817.By Thomas Nuttall.

v.1 1818

The genera of North American plants, and a catalogue of the species, to the year 1817.By Thomas Nuttall.

v.2 1818

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

v.36:no.2(1972)

Check-list of North American birds : according to the canons of nomenclature of the American Ornithologists' Union.

1889 Abridged Edition (Revised)

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)