Like Saint George's herb, it is used in nervous maladies, the intercession of Saint Mark being, it would seem, of sovereign efficacy.
"As to Saint Luke, he may be represented by clumps of mignonette, for Sister Emmerich tells us that while he was a physician it was his favourite remedy.

He macerated mignonette in palm oil, and after blessing it, applied the unction in the form of a cross on the brow and mouth of his patients; in other cases he used the dried plant in an infusion.
"Only Saint Matthew remains; but here I give in, for I know of no vegetable species that can reasonably be assigned to him." "Nay, do not think it hopeless," cried the Abbe Plomb.

"A mediaeval legend tells us that balms exuded from his tomb; hence he was represented as holding a branch of cinnamon, symbolical of the fragrance of virtue, says Saint Melito." "Well, it would be better to accept the real walls of a church, making use of the structure, and limiting ourselves to completing the idea by details borrowed from the symbolism of flowers." "And the sacristy ?" suggested the Abbe Gevresin.
"Since, according to the _Rationale_ of Durand of Mende, the sacristy is the very bosom of the Virgin, we will represent it by virginal plants such as the anemone, and trees such as the cedar, which Saint Ildefonso compares to Our Mother.

And now, if we are to furnish the instruments of worship, we shall find in the ritual of the liturgy and in the very form of certain plants almost precise guidance.

Thus, flax, of which the cornice and altar napery is to be woven, is indispensable; the olive and the _balsamum_, from which oil and balm are extracted, and frankincense, which sheds the drops of gum for the incense, are no less indicated.