Reported expressly for the Horticulturist. - It is gratifying to notice the continued interest taken in these exhibitions by the crowded concourse of visitors, and the increased value set on the efforts of the Society, as shown by the enlarged list of competitors, and the value and beauty of the objects exhibited.

At this early season of the year, much could not be expected from the fruit department; but several very handsome bunches of Grapes from vines grown and forced in pots, were very remarkable for the fine size of their berries.

Of flowers there were many rare and beautiful specimens. Perhaps the greatest amount of interest was collected around the new Roses, which were for once not only tolerably new, but superior to others already well known. They were chiefly hybrid perpetual or Bourbon varieties. Mrs. Rivers was especially very fine. The others most worthy of note were Crystal Palace, large vermillion, but rather loose, not so deep in color, but in other respects superior to the now well known Geant dee Batailles; Triomphe de Paris, also resembling the two last named Souvenir des Caves, crimson scarlet, with a very large round petal; Lion da Combats, now getting as deservedly well known here as the " Geant;" Jules Marjottin, a fine rose, and. Col. Toissey.

Amongst the new plants which we have not before seen in flower here, Escallonia Macrantha may be noticed. It was a very large plant, five or six feet high, with a single spike of pink flowers at the top, each single flower resembling one of Habrothamnus in shape. Unless it prove hardy, which we think doubtful, it will not be a great addition to our collections, requiring too much space to bloom freely. Jovellana punctata seemed like a pretty addition; it had purplish flowers, each nearly cloven in two parts, and something resembling an Angelonia, with verbena-like leaves. It is considered closely allied botanically to the Calceolaria. A plant allied to the Melastonias, Eriooenema amena, was also exhibited. A small plant of the new Chinese Potatoe, Diascorea Japonica, of which those who are acquainted with the leaves of our common " Green Briar" (Smilax rotundifolia) will be able to form some idea of the appearance. Gloxineas are so numerous that it is difficult to find distinct ones; some very fine kinds were present P. Wilson's white, with carmine throat, struck us as being very large, and of free blooming qualities.

Of plants, not for the first time seen on the tables, but still somewhat rare in collections; some specimens of Mussoenda frondosa were very fine. One, which had never been topped or cut back to form a "specimen," but which had its trailing shoots trained over a cylindrical trellis about three feet high, was clothed entirely with flowers, and formed a most beautiful object; it will doubtless soon be very common in hot-houses, where only it will thrive well. Puya Alstentienii was in flower in two collections; its Indian Corn-like leaves well set off by a column of purple bracts gives it a peculiar appearance. Begona adorala, with white and sweet scented flowers, was present in two collections.

An unusual feature in our exhibitions, - a large number of Orchideous plants offered a wide field of interest to the lovers of the curious and beautiful. As showing what kinds bloom at this season of the year, we append the names of the following as amongst the most beautiful of those exhibited: Cypripedium barbatum, grown in a pot of charcoal and moss; Dendrobim nobile, grown on a block; Cattleya mosseoe, pot of charcoal and moss; Bletia hyacinthina, pot of peaty soil; Camarotis purpurea, on a block.

There was a very fair specimen of a pretty white flowering plant, allied to the Myrtle which we do not remember to have met with before in such condition, called Leptotpermun bullatum, a green-house plant, and one deserving extensive culture. An Ixora cracata, with brick-red flowers in large heads, (a stove plant) was very attractive.

The Pelargonium* were grown in a very superior manner. Two specimens of the fancy varieties, Ytolmski, and Jenny Lind, could perhaps scarcely be excelled; the latter we consider one of the most free blooming varieties. In spite of the fact that some of our best gardeners believe they can grow heaths very well here, we seldom see them on our tables. On this occasion we saw a small and healthy plant of E. perspicua ereeta exhibited, covered with white tubular flowers nearly one inch long.

There was a fine collection of Azaleas; the plants not large, but the flowers were of a size seldom seen. A very poor criterion of excellent growth. Amongst them one, A. variegata, was conspicuous for its beauty, in spite of the newer varieties by which it was surrounded.

A new Heliotrope, Beauty of the Boudoir, was exhibited; its chief distinction seemed to be in a larger and more compact truss of flowers. Gas-light, however, is a bad opportunity of judging the merits of the colors of a Heliotrope. The same may be said of some cut blooms of a new rose exhibited, labeled "Isabella Gray;" the flower very double and of a much deeper color than any of the yellow roses we are acquainted with, but which by daylight we were informed was of as deep a yellow as the Persian Briar. It had a delicious fragrance.

It would be an endless task to enumerate all the worthy things exhibited. A Deutzia gracitit, particularly, strikes us as one of the handsomest of recent hardy introductions; and the very handsome baskets of flowers, both native and exotics of the most costly description.