Note 2551 — BOOK XXII. THE PROPERTIES OF PLANTS AND FRUITS.
John Bostock translation
It must not be confounded, Fée says, with the Helxine, a tuberous root, mentioned in B. xxi. c. 56. He thinks also that Pliny is in error in giving it the name of “Perdicium,” which may possibly have been a synonym of the other Helxine. Fée comes to the conclusion that the Perdicium of B. xxi. c. 62, if not the same as the Helxine of c. 56, cannot be identified; that the Helxine of B. xxi. c. 56, is the Acarna gummifera; and that the Helxine here mentioned is identical with the Perdicium of this and the next Chapter, being the Parietaria officinalis of Linnæus, parietary or wall pellitory. The confusion has probably arisen from the similarity of the name of the ἰξίνη, the plant mentioned in B. xxi. c. 56, and the ἑλξίνη, the Helxine of the present Chapter.