By: Brandegee, Katharine Layne, - Cogniaux, Alfred, - Congdon, Joseph W., - Cooper, J. G. (James Graham), - Cooper, Sarah Paxson, - Cosson, E. (Ernest), - Coville, Frederick V. (Frederick Vernon) - Crépin, François, - Cusick, William C. (Willi

Washington :GPO,1895 [i.e. 1896] | New York Botanical Garden, LuEsther T. Mertz Library

Washington, U.S.A., The Carnegie institution, 1903.

Washington, D.C.: Dept. of Agriculture, Forestry Division, 1898.

scientific article

Washington: Govt. Print. Off., 1897

Washington, D.C. :U.S. Dept. of Agriculture, Division of Botany,1898. | U.S. Department of Agricultur

scientific article

Washington, D.C.: U.S. Dept. of Agriculture, 1913.

S.l.: s.n., 1897?