Check list of the forest trees of the United States, their names and ranges - Sudworth, George B. (George Bishop), 1864 -1927 (U.S. Govt. Print. Off, 1927)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1923)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1923)

Supplement to the Catalogue of Arkansas plants - Buchholz, J. T. (John Theodore), 1888 -1951 (Academy of Science of St. Louis], 1926)

Transactions of the Academy of Science of St. Louis - Academy of Science of St. Louis. (Academy of Science of St. Louis], 1926)

Trees and shrubs : illustrations of new or little known ligneous plants, prepared chiefly from material at the Arnold Arboreum of Harvard University - Sargent, Charles Sprague, 1841 -1927 (Houghton, Mifflin, 1913)