Hamburger Garten- und Blumenzeitung (R. Kittler, 1882)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1886)

Synoptical flora of North America - Gray, Asa, 1810 -1888 (American Book Company, 1884)

Synoptical flora of North America: the Gamopetalæ, being a second edition of vol. I, part II, and vol. II, part I, collected - Gray, Asa, 1810 -1888 (Iverson, Blakeman, Taylor, and Company, 1886)

Vilmorin's Blumengärtnerei. Beschreibung, kultur und verwendung des gesamten pflanzenmaterials für deutsche gärten ... - Vilmorin-Andrieux et cie. (P. Parey, 1896)