Many plants, of which the natural season of blossoming under glass is in the winter or early spring months, acquire additional value from that circumstance, because their intrinsic beauty is then heightened by contrast with the "desolation that reigns without." Many of the New Holland Acacias possess this desirable property, which, in some species, is combined with exceeding beauty, as well as gracefulness of habit; consequentlyr there are no plants better adapted for ornamenting a conservatory, where they can be allowed sufficient room to display unconfined their elegant growth. One of the finest species for this purpose is Acacia dealbata, of which there is a splendid specimen, now in the height of its beauty, in my own conservatory. I hare seldom seen a plant of any kind equal in beauty to this, its wide-spreading branches being completely covered with a garment of green and gold, or more strictly speaking, with green and deep lemon color; the latter color greatly predominates, however, for the flowers are so numerous that they almost hide the pretty bipinnatifid leaves.

This tree roots into a border beneath the floor of the house, and its stem was originally trained to one of the pillars that bear up the roof; but the stem is now larger than its former support, and the branches extend in different directions to a distance of several yards. It has been planted about eight years. A fine plant of Acacia vestita grows against another of the pillars. This, from its pro -fuse flowering and pendulous habit, is a very handsome species, and requires much less room than dealbata, which precedes vestita in flowering by nearly a fortnight. To these might be added other desirable kinds, as Acacia armata, a very free flowering species, with flowers like golden balls; A. Lophanta, with long spikes of whitish flowers; A. verticillata, with whorls of leaves like spines; A. melo-noxylon, the Black Wattle of the Australians, with very curious leaves, the footstalks of which look like leaves, with the real leaves hanging to the points of them; and A. pubescens, a very elegant species, with drooping branches and racemes of ball-like flowers, borne in the greatest profusion.

Indeed, all the species of this genus are highly interesting, and most of them elegant ornaments for the greenhouse or conservatory, deserving of general cultivation.