PANICUM • DICTIONARY ONE.COM • Definition of Panicum

... which have entirely disappeared. They are distinguished by Heer under special names. The small barley and the small wheat of the lake-dwellers are among them. All in all there were ten well distinguished varieties of cereals, the Panicum and the Setaria or millet being of the number. Oats were evidently introduced only toward the very last of the lake-dwelling period, and rye is of far later introduction into western Europe. Similar results are attained by the examination ...

— Species and Varieties, Their Origin by Mutation • Hugo DeVries