[57] Rea, John A Complete Florilege 209. 1676.
[58] Parkinson, John Paradisus Terrestris 576. 1629.
[59] Koch, K. Deut. Obst. 560. 1876.
[60] Bauhin Pin. 443 n 23.
[61] Bul. Soc. Dauph. fasc. VIII. 1881.
[62] Ibid.
[63] Dendrol. 316. 1893.
[64] Rhein. Reise-Fl. 67. 1857.
[65] Handb. Laubh. 1: 631. 1906.
[66] Pickering, Charles Chron. Hist. Plants. 218. 1879.