Remontant Roses. - "The term Remontant," says Mr. Par-sons, "signifying, literally, to grow again, we have chosen to designate this class of Roses, there being no word in our language equally expressive. They were formerly called Damask and Hybrid Perpetuals, but are distinguished by their peculiarity of distinct and separate periods of bloom. They bloom with the other roses in early summer, then cease for a while, then make a fresh bloom, and thus through the summer and autumn, differing entirely from the Bourbon and Bengal Roses, which grow and bloom continually through the summer." This class of Roses require longer time to establish themselves from layers than any others, as they are not often fit to detach from the old plant till the second year. Budding is resorted to for extensive propagation with this class. Some of the varieties, when rose. 283 grown upon their own roots, do not do justice to themselves; but when worked on strong-growing stocks, grow much more luxuriantly, and give more perfect flowers. Mr. Parsons has described two hundred varieties of Roses from the various classes of those sorts he thinks most desirable for the amateur to select from. There are but few persons who will be disposed to cultivate that number. His selection is a very choice one, and I should hardly know myself which to reject. Fifty varieties, well chosen from the various classes, are as many as most persons, unless they have money enough and to spare, would be likely to cultivate; and the great majority would probably be happy to possess half that number. We would recommend Prince Albert, Madam Laffay, Rivers, Duchess of Sutherland, Crimson Perpetual, William Jessie, La Reine,and Robin Hood, for a small collection. When a large number are wanted, we refer to Parsons' selection and various catalogues.

Everblooming Roses. - These roses are distinguished from the Remontant, by blooming continually through the season, without any temporary cessation. They include the Bourbon, the Bengal and its sub-varieties, the Tea and Noisette, the Musk, the Macartney, and the Microphylla Roses."

The Everblooming Roses are very desirable, wherever the climate renders it possible to preserve them through the winter. As far north as Boston, the greater part of them can only be cultivated to perfection in the green-house, but further south, they endure the winter, even, without protection.

Bourbon Roses. - This section of the Everblooming Roses have succeeded in my own grounds; but, from appearances, I should think they could not be trusted out much further north, as I find the tops frequently killed down nearly to the ground. Mr. Parsons says they are perfectly hardy with him, (Long Island,) which is much warmer than in this State. He says, in speaking of it as having superior qualities to the Tea-scented Rose, "These qualities are, its perfect hardiness, its very thick, leathery foliage, its luxuriant growth, its constant bloom, and its thick, velvety petals of a consistency to endure even the burning heat of a tropical sun." Some fine varieties are, Paul Joseph, Queen, Emilie Courtier, Bouquet de Flore, and Madame Desprez. This last has proved the most tender, and will not stand out here in the open ground.

China Roses. - This class of Roses we must set down as the proper inhabitants of the green-house, in this section of the country; although, by planting in frames, taking up the plants and laying them in the ground in a dry place, or preserving them in a dry, cool cellar, they will do very well to plant out in the spring, and make a fine bloom after the summer Roses have passed away. Mr. Parsons remarks, that, "next to the Bourbon, this is perhaps the most valuable class of Roses; but in this climate they need protection from the cold. This, however, can be easily afforded by salt, hay, or straw." I have tried to keep this class of Roses in the open ground, by protection of all kinds, but unfortunately their location was rather too wet in winter; perhaps, in a dry, loamy soil, they would succeed better. Further south, this is a most desirable class for outdoor culture.

Tea and Noisette Roses. - What has been said in relation to the tenderness of the China Roses, will apply to the Tea and Noisette Roses. "The Tea and Noisette Roses have been generally classed distinct from the China." "They are, however, but varieties of the latter; and there is so much confusion in the old classification, that the amateur is frequently misled. Many of the Roses now classed among the China, have a strong tea scent, and many of the present Tea Roses have very little fragrance. The characteristic of the Noisette Rose is understood to be its cluster-blooming habit." The Southern States must be the congenial climate for the whole class of China and Tea Roses. The author of the work already alluded to, however, says, "They will endure our winters, with the thermometer at zero, but it is better to protect them by means of straw and hay, or of boards upon low stakes. Perhaps the least troublesome way of protecting them, is to have one or more hot-bed frames, six feet by twelve, and about a foot and a half or two feet deep. This can be set several inches in the ground, and litter of any kind placed around the s des. The Roses can be carefully taken up, and planted in this frame as thick as they will stand. The top can then be covered with boards, a little slanting, to carry off the rain, and the plants will be sufficiently protected. If the weather is severe, some litter can also be placed on the top." This class of Roses is so desirable that if, by any means, they can be protected without the expense of a green-house, it will be a great desideratum. For China Roses, we would name, Mrs. Bosanquet, Madame Breon, Grandiflora and Daily Blush. For Tea Roses, Eliza Sauvage, Marshal Bugeaud, Safrano,Triomphe de Luxembourg, and Princess Adelaide. For Noisettes, the fine yellow Cromatella, Aimee Vibert, Ne Plus Ultra, Lamarque, Jaune Desprez and Pactole.

Musk Roses. - The Musk Rose stands pretty well here, in a warm, dry situation, but, in wet ground, rather tender. In the latitude of Long Island, Mr. Parsons says it is quite hardy, having a plant of the old White Musk, that has braved the severity of more than twenty winters, in his grounds. "It has already, this season, made shoots of more than six feet; and in our Southern States more than double the growth would probably be attained." It produces its flowers in large clusters. We are familiar with the old white cluster, which commences flowering late, and continues till cold weather. Other fine varieties are, Eponine, and Princess of Nassau.

Macartney Roses. - "This Rose was brought from China to England, by Lord Macartney, in 1793. Its habit is luxuriant, and its foliage is more beautiful than of any other Rose, its leaves being thick, and of a rich glossy-green." As to hardiness, it is about the same as the China Rose. "It is one of the most desirable Roses for beds or borders. When covering the whole ground, and kept well pegged down, its rich, glossy foliage, gemmed with fragrant flowers, produces a fine effect." The two best varieties are Alba odorata and Maria Leonida.

Microphylla Roses. - "This Rose came originally from the Himalayan Mountains, and was brought to Europe in 1823.'

It has not proved hardy with me, but with Mr. Parsons "it has endured the winter for the past two years, without protection, losing only a portion of the top of its shoots. Its foliage is small and singular, and its growth very robust."