A revision of the Eriogoneæ / by John Torrey and Asa Gray. 1870. --
Ammobroma : a new genus of plants allied to Corallophyllum and Pholisma / by John Torrey. 1864. --
Botanical contributions / by Asa Gray (1. Reconstruction of the order Diapensiaceæ. 2. Revision of the North American Polemoniaceæ. 3. Miscellanea.
Botanical Contributions / by Asa Gray. 1872. --
Two new diœcious grasses of the United States / by George Engelmann, M.D. 1859. --
Systematic arrangement of the species of the genus Cuscuta with critical remarks on old species and descriptions of new ones / by George Engelmann, M.D. 1859. --
A monograph of the North American species of Rhynchospora / Asa Gray. 1834. --
A notice of some of the new, rare, and otherwise interesting plants, the the northern and western portions of the state of New York / by Asa Gray, M.D. 1834. --
Revision of the North American species of the genus Juncus / by George Engelmann, M.D. 1868. --
American Bacillaria / by J.W. Bailey (part II. Naviculacea).
