1886. A revision of the North American Ranunculi; Sertum Chihuahuense; Miscellanea. XXI. 363-413.
1887. Revision of some Polypetalous genera and orders precursory to the Flora of North America; Sertum Chihuahuense; Appendix; Miscellanea. XXII. 270-314.
1888. Notes upon some Polypetalous genera and orders. XXIII. 223-227.
Smithsonian Contributions—
1852-1853. Plantæ Wrightianæ Texano—Neo-Mexicanæ. Part I. iii. 1-146; Part II. v. 1-119.
Journal of the Boston Society of Natural History—
1844. Characters of some new genera and species of plants of the natural order Compositæ from the Rocky Mountains and Upper California, with plate. V. 104-111.
1845-1850. Plantæ Lindheimerianæ. By George Engelmann and Asa Gray. V. 210-264; VI. 141-233.
Proceedings of the Philadelphia Academy of Natural Sciences—
1862. Plants from Texas by S. B. Buckley. 161-168; 332-337.