A longtime correspondent of John Torrey, Asa Gray, Leo Lesquereux, and others, Sullivant emerged as the foremost American bryologist. Upon his death, in accordance with his wishes, his books, papers and specimens were donated to the Gray Herbarium of Harvard University. Ephemera Series I. Correspondence Contains two subseries, bound correspondence and unbound correspondence.
Bound correspondence includes two volumes.
Unbound correspondence includes both personal correspondence and correspondence found in the Sullivant collection. See also Papers of James, Thomas Potts. Drawings Contains original drawings from which ten plates were made to illustrate the mosses of the Whipple Survey as well as miscellaneous other drawings. Manuscript Materials Contains four manuscript species lists, one by Sullivant and three by C.F. Austin. Exsiccatae Contains bound exsicate and duplicate printed sheets of labels.