Washington, D.C.: Dept. of Agriculture, Botanical Division, 1889.

By: Gray, Asa, - Van Denburg, M. W. (Marvin W.), - Vasey, George, - Veitch, Harry J. (Harry James), - Verney, Harry, Sir, - Viala, Pierre, - Vigener, Anton, - Vilmorin, Henry L. de (Henry Lévêque), - Vilmorin, Louis Lévêque de, - Vilmorin, M

Washington, D.C.: Dept. of Agriculture, Botanical Division, 1887.

article

Washington, D.C.: Dept. of Agriculture, Botanical Division, 1887.

scientific article

Washington, Govt. Print. Off., 1889.

Washington,Govt. print. off.,1884. | Library of Congress

Washington, D.C.: G.P.O., 1884.