Thus the Aino agree with the Druids in regarding mistletoe as a cure for almost every disease, and they agree with the ancient Italians that applied to women it helps them to bear children. Again, the Druidical notion that the mistletoe was an all-healer or panacea may be compared with a notion entertained by the Walos of Senegambia. These people have much veneration for a sort of mistletoe, which they call tob; they carry leaves of it on their persons when they go to war as a preservative against wounds, just as if the leaves were real talismans (gris-gris). The French writer who records this practice adds: Is it not very curious that the mistletoe should be in this part of Africa what it was in the superstitions of the Gauls? This prejudice, common to the two countries, may have the same origin; blacks and whites will doubtless have seen, each of them for themselves, something supernatural in a plant which grows and flourishes without having roots in the earth. May they not have believed, in fact, that it was a plant fallen from the sky, a gift of the divinity?
This suggestion as to the origin of the superstition is strongly confirmed by the Druidical belief, reported by Pliny, that whatever grew on an oak was sent from heaven and was a sign that the tree had been chosen by the god himself. Such a belief explains why the Druids cut the mistletoe, not with a common knife, but with a golden sickle, and why, when cut, it was not suffered to touch the earth; probably they thought that the celestial plant would have been profaned and its marvellous virtue lost by contact with the ground. With the ritual observed by the Druids in cutting the mistletoe we may compare the ritual which in Cambodia is prescribed in a similar case. They say that when you see an orchid growing as a parasite on a tamarind tree, you should dress in white, take a new earthenware pot, then climb the tree at noon, break off the plant, put it in the pot and let the pot fall to the ground. After that you make in the pot a decoction which confers the gift of invulnerability.
Thus just as in Africa the leaves of one parasitic plant are supposed to render the wearer invulnerable, so in Cambodia a decoction made from another parasitic plant is considered to render the same service to such as make use of it, whether by drinking or washing. We may conjecture that in both places the notion of invulnerability is suggested by the position of the plant, which, occupying a place of comparative security above the ground, appears to promise to its fortunate possessor a similar security from some of the ills that beset the life of man on earth. We have already met with examples of the store which the primitive mind sets on such vantage grounds.
Whatever may be the origin of these beliefs and practices concerning the mistletoe, certain it is that some of them have their analogies in the folk-lore of modern European peasants. For example, it is laid down as a rule in various parts of Europe that mistletoe may not be cut in the ordinary way but must be shot or knocked down with stones from the tree on which it is growing. Thus, in the Swiss canton of Aargau all parasitic plants are esteemed in a certain sense holy by the country folk, but most particularly so the mistletoe growing on an oak. They ascribe great powers to it, but shrink from cutting it off in the usual manner. Instead of that they procure it in the following manner. When the sun is in Sagittarius and the moon is on the wane, on the first, third, or fourth day before the new moon, one ought to shoot down with an arrow the mistletoe of an oak and to catch it with the left hand as it falls. Such mistletoe is a remedy for every ailment of children.
Here among the Swiss peasants, as among the Druids of old, special virtue is ascribed to mistletoe which grows on an oak: it may not be cut in the usual way: it must be caught as it falls to the ground; and it is esteemed a panacea for all diseases, at least of children. In Sweden, also, it is a popular superstition that if mistletoe is to possess its peculiar virtue, it must either be shot down out of the oak or knocked down with stones. Similarly, so late as the early part of the nineteenth century, people in Wales believed that for the mistletoe to have any power, it must be shot or struck down with stones off the tree where it grew.