LCCN 05-37178: Bentham, G. Genera plantarum ad exemplaria imprimis in herbariis kewensibus servata definita, 1862-83 (hdg.: Hooker, Sir Joseph Dalton, 1817-1911; usage: J.D. Hooker)
LC data base, 7-9-86 (hdg.: Hooker, Joseph Dalton, Sir, 1817-1911; usage: J.D. Hooker; Sir Joseph Dalton Hooker; Sir Joseph Hooker)