Note 1313 — BUCK-WHEAT.

Several species of this genus were cultivated in the southern districts. Their distinguishing characteristics do not however appear as yet to be fully established. Bauhin makes the proper sorghum to be different from the durra of the Arabs. Linnæus in his last writings has separated Holcus bicolor from sorghum. Forskal thus describes the durra: “Holcus panicula ovata; spiculis sessilibus, subvillosis; alternatim appendiculatis; flosculo uno vel duobus vacuis, sessilibus.” There are kinds of it with white and reddish-yellow (fulva) seeds. According to his account, however, the Arabs cultivate another kind known under the name of dochna, though in less quantity, chiefly as food for fowls.