Amadis is one of the handsomest of the Boursalt Roses, producing its large purplish-crimson flowers in pendulous clusters.

For distant effect, the Common Purple Boursalt is not without its merits. The flowers are semi-double, but are produced in immense numbers; and, then, it is very hardy.

De Lesle, or Blush Boursalt. - This is one of the earliest of the sub-class, producing large blush flowers, with a deep rose centre, and perfectly double. All the Boursalts have quite smooth stems, but none more so than the Thornless Rose, which comes into bloom soon after the Cinnamon. Its stems are perfectly smooth; it makes a stout bush, ten or twelve feet high, and is covered with a profusion of pretty pink roses. This is suitable for the shrubbery. The Old White Rose makes a handsome bush for training. The flowers are semi-double, of a fine rose-white, and, when properly managed, in rich soil, will grow twelve to fifteen feet high.

Prairie Roses. - Samuel Feast, Esq., of Baltimore, has the honor of originating the first Prairie Rose, - the Queen of the Prairies, - for which the Massachusetts Horticultural Society awarded him their large gold medal, as a special premium. This is the type of a new class of hardy Roses, and proves to be a most valuable acquisition for the North, it being as hardy as the oak. The tribe bloom after the summer Roses are passed.

Queen of the Prairies is a most superb variety of Rosa rubi-folia, a native of the West, sometimes known as the Michigan Rose. This is Mr. Feast's first seedling, and considered by some the best. The flowers are of a deep rose color, with a white stripe in the centre of each petal. They have a peculiar globular, cap-shaped form. This variety is the most luxurious grower of any of the class, making a surprising growth in rich soil. The flowers of all the varieties are produced in clusters.

Baltimore Belle. - The flowers are a pale, waxy blush, almost white, very double, in large clusters; like the other perfectly hardy.

Rosa superba has pale, delicate blush roses, in large clusters, the flowers not so large as the Baltimore Belle.

Perpetual Pink produces flowers in great profusion, which, continue in long succession; rather small, but in large clusters, varying from light-pink to purple. In addition to those described, there are many other varieties equally desirable, and new sorts are every year produced. This class of Roses lack one important quality, that is, fragrance.

Ayrshire Roses. - This family of Roses are great ramblers, producing a long, slender, luxuriant growth; but, in a northern climate, they cannot be relied on as being perfectly hardy, un less laid down and covered over. They produce very pretty flowers, in clusters, mostly white. They are desirable for covering "unsightly places, old buildings and decayed trees." "The Ayrshire Roses are also valuable for weeping trees. When budded on some stock eight or ten feet high, the branches quickly reach the ground, and, protecting the stem by their close foliage, present a weeping tree of great beauty, loaded with flowers."

Some of the most desirable varieties are the Dundee Rambler; flowers in large clusters, white, edged with pink, and the double blush.

Hybrid China, Bourbons, etc. - Of this class there are many varieties, suitable for pillars, or poles, but which it will be the safest course to be careful of in the winter, in the New England States. In climbing Roses, length is an important feature; and if these hybrids are left without protection, they may lose a large portion of the new wood, unless laid down and covered over. Rivers's George the Fourth is a Hybrid China; grows about ten feet high; flowers large, of a very rich crimson color. This is also a fine dwarf Rose, when pruned down, and, like most of the Hybrid China, stands perfectly well in the open ground, but the tops are always winterkilled here.

Belle Theresa. - Hybrid China. - A rampant grower, with rich dark purple-crimson flowers, in clusters, under medium size.

Fulgens, - Hybrid China, - has beautiful bright scarlet-cupped flowers. .

Gloire de Rosemene. - Bourbon. - This fine Rose gives a succession of fine bright crimson-scarlet flowers, but rather tender.

Brennus, - Hybrid China, - has large bright scarlet-crimson flowers.

Blanchfleur. - Hybrid China. - Pure white; of a very double and compact form, and an abundant bloomer; about six feet high.

Madame d'Arblay. - Hybrid climber, of great luxuriance, flowers white, in exuberant clusters; too tender for the North.

La Tourterelle, or Dove Rose, - Hybrid China, - a very luxuriant grower, but succeeds well as a dwarf Rose, when pruned down. The flowers are large, cup-shaped, of a purplish-lilac or dove color.

Phillipar, - Noisette, or Bourbon, - admired for its profusion, and peculiar rosy-lilac hue of the flowers, blooming without intermission from June to November.

Of the Hybrid Perpetual Roses, suitable for training, are Madame Laffay, blooming three or four times in the season, with bright rosy flowers; Prince Albert, already named, with large flowers, of a rich crimson color and perfect shape; and Youland d'Arragon, with fine, deep flowers. There are some of this class that can be made to grow in rich grounds five to six feet high.

In planting climbing Roses, they should always be cut down to within a few inches of the ground, as it is important to get a clean, vigorous growth for the next year's bloom. Another important matter is, to dig the ground deep and have it thoroughly enriched. A third is, in pruning. The wood of climbing Roses does not produce so fine flowers after it is two years old. It is necessary, therefore, to encourage the growth of one or more new shoots every year, cutting out the old wood as fast as there is new to supply its place. The lateral branches are to be pruned in, while the main stems are to be kept the whole length.

We had almost forgot the Multifiora Rose, a class distinct from those already named; they produce flowers in large clusters, but rather small. Some of the varieties are, the Cottage Rose, Laure Davoust, Garland, etc. In New England they are all rather tender.

In closing our remarks on Roses, we cannot refrain from giving Gerarde's account of it some two hundred and fifty years ago. His mode of classification was, among thorny plants. "This plant of Roses, though it be a shrub full of prickles, yet it had been more fit and convenient to have placed it with the' most glorious flowers of the world, than to insert the same here, among base and thorny shrubs, for the Rose doth deserve the chiefest and most principled place among all flowers whatsoever, being not only esteemed for its beauty, vertues, and his fragrant, odoriferous smell, but also because it is the honour and ornament of our English sceptre, as by the conjunction appear-eth in the uniting of those two most royal houses of Lancaster and York. * * It is reported that the Turks can by no means endure to see the leaves of Roses fall to the ground, because that some of them have dreamed that the first or most ancient Rose did spring from the blood of Venus, and others of the Mahometans say, that it sprang from the sweat of Mahomet. * * The Holland, or Provence Rose hath divers shoots, proceeding from a woody root, full of sharp prickles, dividing itself into divers branches, whereon do grow leaves, consisting of five leaves set upon a single mid-rib, and those snip out the rose. 293 edges; the flowers do grow on the tops of the branches, in shape and color like the Damask Rose, but greater and more double, insomuch that the yellow chives in the middle are hard to be seen; of a reasonable good smell, but not full so sweet as the common Damask Rose; the fruit is like the other of his kinde."