CHAP. 42.—THE TITHYMALOS HELIOSCOPIOS: EIGHTEEN REMEDIES.
A fourth kind of tithymalos[1203] is known by the additional name of “helioscopios.”[1204] It has leaves like those of purslain,[1205] and some four or five small branches standing out from the root, of a red colour, half a foot in height, and full of juice. This plant grows in the vicinity of towns: the seed is white, and pigeons[1206] are remarkably fond of it. It receives its additional name of “helioscopios” from the fact that the heads of it turn[1207] with the sun. Taken in doses of half an acetabulum, in oxymel, it carries off bile by stool: in other respects it has the same properties as the characias, above-mentioned.