[1869] Nemnich, Lexicon Naturgesch.

[1870] Ad. Pictet, ubi supra.

[1871] Secale fragile, Bieberstein; S. anatolicum, Boissier; S. montanum, Gussone; S. villosum, Linnæus. I explained in my Géogr. Botanique, p. 936, the errors which result from this confusion, when rye was said to be wild in Sicily, Crete, and sometimes in Russia.

[1872] Flora, Bot. Zeitung, 1856, p. 520.

[1873] Flora, Bot. Zeitung, 1869, p. 93.

[1874] Kunth, Enum., i. p. 449.

[1875] Sadler, Fl. Pesth., i. p. 80; Host, Fl. Austr., i. p. 177; Baumgarten, Fl. Transylv., p. 225; Neilreich, Fl. Wien., p. 58; Viviani, Fl. Dalmat., i. p. 97; Farkas, Fl. Croat., p. 1288.

[1876] Strobl saw it, however, in the woods on the slopes of Etna, a result of its introduction into cultivation in the eighteenth century (Œster. Bot. Zeit., 1881, p. 159).

[1877] Schweinfurth and Ascherson, Beitrage zur Fl. Æthiop., p. 298.

[1878] Royle, Ill., p. 419.