Note 44 — PITHOEA.

Linnæus in the Flora Lapponica, ed. 2. 53, tells us that "in times of extreme scarcity the roots of this plant, dried and powdered, are mixed with a small quantity of meal, and serve to make the miserable bread of the poorer settlers in Lapland, which is extremely bitter and detestable." In the same work, p. 259, he describes an excellent kind of bread made of the roots of Calla palustris, which though acrid when fresh, become wholesome if dried, and boiled afterwards in water, as is the case with its near relation our common Arum, and the Jatropha Manihot, or Casava, of the West Indies.