[157] The Hordeum distichum of Linnæus.
[158] Hordeum hexastichum of Linnæus. The Hordeum vulgare, or common barley, has but four rows.
[159] These varieties are not known at the present day, and Fée questions if they ever existed. There is a black barley found in Germany, the Hordeum nigrum of Willdenow.
[160] A calcareous soil is the best adapted for barley.
[161] Nova Carthago, or New Carthage.
[162] This fallacious opinion is shared with Galen, De Facult. Anim. B. vi. c. 11.
[163] Siligo.
[164] Triticum.
[165] The Triticum dicoccum, or spelt.