Sargent, Charles Sprague: The Silva of North America : a description of the trees which grow naturally in North America exclusive of Mexico. Rosaceae - Saxifragaceae / by Charles Sprague Sargent; illustr. by Charles Edward Faxon and engraved by Philibert and Eugène Picart. Boston ; New York : Houghton, Mifflin and Company, 1891-1902 : 4(1891-). Boston and New York : Houghton, Mifflin and Company, MDCCCXCIII [1893]