In Chapter IV. I referred to the association of Mistletoe with the Solstitial worship. When we deal with the May year we meet constantly with references to the Rowan and the Hawthorn in the folklore connected with it. We seem in presence, then, not only of tree cult generally, but of sacred trees special to each of the two worships we have been considering. I propose now, therefore, to bring together some of the information to be gathered from a very cursory reference to the vast literature which exists on the subject. In the first instance I begged my friend, Professor Bayley Balfour, Keeper of the King’s Garden at Edinburgh, to give me some particulars of the Rowan Tree, which I imagined (1) to have been chosen on account of its flowers being prominent about May Day (Beltane) and its berries in early November (Hallowe’en), and (2) to have a different habitat from the Mistletoe. I have to thank my friend for much valuable information. The Rowan Tree, called also the Mountain Ash (_Pyrus Aucuparia_), seems to grow pretty freely all over the _Northern_ parts of Europe. Professor Balfour tells me: “Rowan is essentially a Northern plant--an immigrant to Europe from N.W. Asia--and now is spread all over North and Central Europe in abundance, with only some ‘feelers’ passing south into the Mediterranean Basin. It does not go south of Cappadocia in Asia Minor. It does not reach Greece. In Italy it occurs on the Eastern Apennines, and also in N.E. Sicily. In Spain it runs over the higher regions in the N. and into the centre, passing just into Portugal. Its occurrence in Madeira is not certainly established as a natural phenomenon; perhaps it is only introduced there. In all these Southern outruns the tree cannot be said to have any dominance, and its area and abundance are infinitely less than in the North. Scandinavia is one of its best homes. Everywhere it is found right north to 71°, there becoming a bush only, but yet ripening seed. It reaches Iceland, where trees of some size occur. All over Great Britain and Ireland it is generally spread. You may certainly say there is much in Norway, and there is equally certainly less, even little, in Italy.” In Pratt’s _Flowering Plants of Great Britain_ (vol. 2, p. 260) it is stated, “The flowers, which grow in dense clusters, and are greenish-white, appear in May.... In autumn, however, the tree is more beautiful than in summer, for at that season the rich cluster of red fruits gleams among the foliage, each berry having the form of a tiny apple, and containing a little core and seeds within.” At Christiania the mean of ten years’ flowering is given by Professor Schübeler[41] as--first flowers, June 19; general flowering, June 30. This, then, is later than in Britain. On high grounds the fruit is conspicuous here on November 1; on lower levels the birds attack it and reduce its striking appearance before that date.