[1039] Schouw, Die Erde, p. 44; Comes, Ill. delle Piante, etc., in 4to, p. 56.

[1040] Sordelli, Piante della torbiera di Lagozza, p. 40.

[1041] Caruel, Flora Toscana, p. 48.

[1042] Hist., lib. 15, c. 13.

[1043] Koch, Syn. Fl. Germ., edit. 2, p. 228; Cosson and Germain, Flore des Environs de Paris, i. p. 165.

[1044] Hudson, Fl. Anglic., 1778, p. 212, unites them under the name Prunus communis.

[1045] Ledebour, Fl. Ross., ii. p. 5; Boissier, Fl. Orient., ii. p. 652; K. Koch, Dendrologie, i. p. 94; Boissier and Bühse, Aufzähl Transcaucasien, p. 80.

[1046] Dioscorides, p. 174.

[1047] Bretschneider, On the Study, etc., p. 10.

[1048] Fraas, Syn. Fl. Class., p. 69.