By: Gray, Asa, - Radlkofer, L. (Ludwig), - Rand, Edward L. (Edward Lothrop), - Rattan, Volney, - Ravenel, Henry William, - Redfield, John Howard, - Reeve, Lovell, - Regel, E. (Eduard), - Reichenbach, H. G. (Heinrich Gustav) - Reinsch, Paul Fried

Harvard University Botany Libraries

By: Davenport, George E. (George Edward), - Rand, Edward L. (Edward Lothrop), - Redfield, John Howard, - Reverchon, Julien, - Robinson, Benjamin Lincoln, - Robinson, John, - Rooney, Bridget M., - Rose, J. N. (Joseph Nelson), - Roy, Jessie, - Rug

archival material; correspondence 1872-1917

libro de John Howard Redfield