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"[Plin. Nat. 20.52.] - WILD MINT: TWENTY REMEDIES.
Mentastrum, or wild mint, differs from the other kind in the appearance of the leaves, which have the form of those of ocimum and the colour of pennyroyal; for which reason, some persons, in fact, give it the name of wild pennyroyal. The leaves of this plant, chewed and applied topically, are a cure for elephantiasis; a discovery which was accidentally made in the time of Pompeius Magnus, by a person affected with this malady covering his face with the leaves for the purpose of neutralizing the bad smell that arose therefrom. These leaves are employed also as a liniment, and in drink, with a mixture of salt, oil, and vinegar, for the stings of scorpions; and, in doses of two drachmæ to two cyathi of wine, for those of scolopendræ and serpents. A decoction, too, of the juice is given for the sting of the scolopendra. Leaves of wild mint are kept, dried and reduced to a fine powder, as a remedy for poisons of every description. Spread on the ground or burnt, this plant has the effect of driving away scorpions.
Taken in drink, wild mint carries off the lochia in females after parturition; but, if taken before, it is fatal to the fœtus, It is extremely efficacious in cases of rupture and convulsions, and, though in a somewhat less degree, for orthopnœa, gripings of the bowels, and cholera: it is good, too, as a topical application for lumbago and gout. The juice of it is injected into the ears for worms breeding there; it is taken also for jaundice, and is employed in liniments for scrofulous sores. It prevents the recurrence of lascivious dreams; and taken in vinegar, it expels tape-worm. For the cure of porrigo, it is put in vinegar, and the head is washed with the mixture in the sun.”

"[Plin. Nat. 20.91.] - SISYMBRIUM OR THYMBRÆUM: TWENTY-THREE REMEDIES.
Wild sisymbrium, by some persons called “thymbræum,” does not grow beyond a foot in height. The kind which grows in watery places, is similar to nasturtium, and they are both of them efficacious for the stings of certain insects, such as hornets and the like. That which grows in dry localities is odoriferous, and is employed for wreaths: the leaf of it is narrower than in the other kind. They both of them alleviate head-ache, and defluxions of the eyes, Philinus says. Some persons, however, employ bread in addition; while others, again, use a decoction of the plant by itself in wine. It is a cure, also, for epinyctis, and removes spots on the face in females, by the end of four days; for which purpose, it is applied at night and taken off in the day-time. It arrests vomiting, hiccup, gripings, and fluxes of the stomach, whether taken with the food, or the juice extracted and given in drink.
This plant, however, should never be eaten by pregnant women, except in cases where the fœtus is dead, for the very application of it is sufficient to produce abortion. Taken with wine, it is diuretic, and the wild variety expels calculi even. For persons necessitated to sit up awake, an infusion of it in vinegar is applied as a liniment to the head.”
(The Natural History. Pliny the Elder. John Bostock, M.D., F.R.S. H.T. Riley, Esq., B.A. London. Taylor and Francis, Red Lion Court, Fleet Street. 1855.)