Most common in cultivation is the European mountain ash called in England the rowan tree. This trim round-headed species is very neat and conventional compared with its wild cousins, but in the craggy highlands of Scotland and Wales it much resembles our mountain ashes.
Old superstitions cluster around the rowan tree in all rural sections. These are preserved in the folk-lore and the literature of many countries. Rowans were planted by cottage doors and at the gates of church yards, being considered effectual in exorcising evil spirits. Leafy twigs hung over the thresholds, crosses made of "Roan" wood given out on festival days, were worn as charms or amulets. Milkmaids, especially, depended upon these for the defeat of the "black elves" who constantly tried to make their cows go dry, and unless prevented got into the churns—and then the butter would never come!
The farther north a tree can grow, the more likely it is to have close relatives in the Old World. One mountain ash of Japan is hardly distinguishable from our western species, and some authorities believe that our two native species are but varieties of the rowan tree of Europe.
THE RHODODENDRON
The heath family, of about sixty-seven genera, distributed over the temperate and tropical countries of the earth, has twenty-one genera in the United States, seven of which have tree representatives. Azaleas, the multitude of the heathers, the huckleberries, the madroñas, call to mind flower shows we have seen—under glass, in gardens, in parks, and among mountain fastnesses brightened by the loveliness of the mountain laurel, azalea, and rhododendron. In this wonderful family the leaves are simple and mostly evergreen. Rarely are the fruits of any importance. It is the flowers in masses that give the chief distinction to a family with over a thousand species, which have been the subjects of study and cultivation through centuries. The type of the family is the Scotch heather, immortalized in song and story. In London the Christmas season is marked by the sale of half a million little potted plants of heather! Each is about a foot in height and bears a thousand tiny bells, rosy, with white lips. This is the poor man's Christmas flower. It costs a shilling and lasts a month or more.
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FLOWERING DOGWOOD