| J.C. Loudon, Arbor. Frutic. Brit., ed. 2, vol. 1 (Text): (1844) [31] | |
| Illustration contributed by: | University of Illinois Urbana-Champaign, U.S.A. |
J.C. Loudon, Arbor. Frutic. Brit., ed. 2, vol. 1 (Text): (1844)