To all the above rules for growing the swamp lilies, _L. Humboldti_ and _L. Columbianum_ are exceptions. By far the best known of this group of lilies is _Lilium Canadense_, the Canada Lily. This is the only one of the group which can be considered as an old garden plant. It has been grown in England now for a long time, and was the fifth lily to be cultivated in our island. This lily is a very pretty flower, not gorgeous nor pretentious as are so many of the genus, but quiet and homely. It grows about four feet high; the stem is very slender, and the leaves are whorled. In the middle of summer it bears from three to fifteen blossoms like small stars. They are bright orange in colour, thickly spotted with deep purple, and about an inch and a half across. Their chief beauty lies in the way they hang, for they are very gracefully swung. The segments are not reflexed, and the plant more nearly resembles the _Eulirions_ than it does the typical Martagons. The lily is subject to great variety, especially in the colour of the blossoms, which vary from lemon yellow to brick red. There is a great number of named varieties, but they are all more or less inconstant. By some authorities nearly all the other swamp lilies are considered to be merely variations from _Lilium Canadense_. Although, as we have said, the _Canada_ lily has long been cultivated in England, it does not always take kindly to our soil, and very often it speedily degenerates, and in a few years disappears. But if the soil is really to its liking, it will often flourish in England. Like so many of its congeners, it is very impatient of removal, and when once established it should be left alone. A fitting companion to the last, but of greater vigour and considerably superior dimensions is the _Lilium Superbum_ of the United States of America. This species is often confused with the last, but it can readily be distinguished by the form of its bulb and rhizome; its greater vigour and more robust growth; the shape of the flower buds, which is triangular in _L. Canadense_, and rounded in _L. Superbum_; and by the blossoms themselves, which are far larger, very revolute and marked with a green star formed by the green ribs of the segments. In this respect _L. Superbum_ resembles _L. Speciosum_. It also produces more blossoms than does _L. Canadense_, and flowers later in the season. The root of this lily is typical of those species which bear annual bulbs and perennial rhizomes. The bulb is small, about as large as a walnut, composed of thick, short, fleshy scales, very closely packed together, but easily detached by a rough hand. It closely resembles a young fir-cone, but is more spherical. The rhizome or sucker is about as thick as a man’s little finger, and from one to four inches long. It is hard, but brittle, and regularly dotted with small scales.