The yellow colour of the withered bough may partly explain why the mistletoe has been sometimes supposed to possess the property of disclosing treasures in the earth; for on the principles of homoeopathic magic there is a natural affinity between a yellow bough and yellow gold. This suggestion is confirmed by the analogy of the marvellous properties popularly ascribed to the mythical fern-seed, which is popularly supposed to bloom like gold or fire on Midsummer Eve. Thus in Bohemia it is said that on St. John's Day fern-seed blooms with golden blossoms that gleam like fire. Now it is a property of this mythical fern-seed that whoever has it, or will ascend a mountain holding it in his hand on Midsummer Eve, will discover a vein of gold or will see the treasures of the earth shining with a bluish flame. In Russia they say that if you succeed in catching the wondrous bloom of the fern at midnight on Midsummer Eve, you have only to throw it up into the air, and it will fall like a star on the very spot where a treasure lies hidden. In Brittany treasure-seekers gather fern-seed at midnight on Midsummer Eve, and keep it till Palm Sunday of the following year; then they strew the seed on the ground where they think a treasure is concealed. Tyrolese peasants imagine that hidden treasures can be seen glowing like flame on Midsummer Eve, and that fern-seed, gathered at this mystic season, with the usual precautions, will help to bring the buried gold to the surface. In the Swiss canton of Freiburg people used to watch beside a fern on St. John's night in the hope of winning a treasure, which the devil himself sometimes brought to them. In Bohemia they say that he who procures the golden bloom of the fern at this season has thereby the key to all hidden treasures; and that if maidens will spread a cloth under the fast-fading bloom, red gold will drop into it. And in the Tryol and Bohemia if you place fern-seed among money, the money will never decrease, however much of it you spend. Sometimes the fern-seed is supposed to bloom on Christmas night, and whoever catches it will become very rich. In Styria they say that by gathering fern-seed on Christmas night you can force the devil to bring you a bag of money.
Thus, on the principle of like by like, fern-seed is supposed to discover gold because it is itself golden; and for a similar reason it enriches its possessor with an unfailing supply of gold. But while the fern-seed is described as golden, it is equally described as glowing and fiery. Hence, when we consider that two great days for gathering the fabulous seed are Midsummer Eve and Christmasthat is, the two solstices (for Christmas is nothing but an old heathen celebration of the winter solstice)we are led to regard the fiery aspect of the fern-seed as primary, and its golden aspect as secondary and derivative. Fern-seed, in fact, would seem to be an emanation of the sun's fire at the two turning-points of its course, the summer and winter solstices.
This view is confirmed by a German story in which a hunter is said to have procured fern-seed by shooting at the sun on Midsummer Day at noon; three drops of blood fell down, which he caught in a white cloth, and these blood-drops were the fern-seed. Here the blood is clearly the blood of the sun, from which the fern-seed is thus directly derived. Thus it may be taken as probable that fern-seed is golden, because it is believed to be an emanation of the sun's golden fire.
Now, like fern-seed, the mistletoe is gathered either at Midsummer or at Christmasthat is, either at the summer or at the winter solsticeand, like fern-seed, it is supposed to possess the power of revealing treasures in the earth. On Midsummer Eve people in Sweden make divining-rods of mistletoe, or of four different kinds of wood one of which must be mistletoe. The treasure-seeker places the rod on the ground after sundown, and when it rests directly over treasure, the rod begins to move as if it were alive. Now, if the mistletoe discovers gold, it must be in its character of the Golden Bough; and if it is gathered at the solstices, must not the Golden Bough, like the golden fern-seed, be an emanation of the sun's fire? The question cannot be answered with a ****** affirmative. We have seen that the old Aryans perhaps kindled the solstitial and other ceremonial fires in part as sun-charms, that is, with the intention of supplying the sun with fresh fire; and as these fires were usually made by the friction or combustion of oak-wood, it may have appeared to the ancient Aryan that the sun was periodically recruited from the fire which resided in the sacred oak. In other words, the oak may have seemed to him the original storehouse or reservoir of the fire which was from time to time drawn out to feed the sun. But if the life of the oak was conceived to be in the mistletoe, the mistletoe must on that view have contained the seed or germ of the fire which was elicited by friction from the wood of the oak.
Thus, instead of saying that the mistletoe was an emanation of the sun's fire, it might be more correct to say that the sun's fire was regarded as an emanation of the mistletoe. No wonder, then, that the mistletoe shone with a golden splendour, and was called the Golden Bough. Probably, however, like fern-seed, it was thought to assume its golden aspect only at those stated times, especially midsummer, when fire was drawn from the oak to light up the sun. At Pulverbatch, in Shropshire, it was believed within living memory that the oak-tree blooms on Midsummer Eve and the blossom withers before daylight.