The Yucca flexilis, Nobis; Y. stenophylla, Y. acuminata, Y. angustifolia, Y. longifolia, of the gardens, is an herbaceous plant mostly with a short stem, and leaves of twenty-two inches, sometimes twenty-five inches in length and from an inch to one inch and one-fourth across, of a deep, bright green color, shining almost as though varnished. They are rarely glaucous, except the young leaves, which gracefully turn back in the middle, and are traced in the upper two-thirds of the leaf by five ribs, edged with a reddish brown color. The flowers always grow singly and drooping, as shown in the figure.

This species, the most elegant in its bearing, is also very remarkable for the size of its flowers; indeed, when open, they measure sixteen inches in diameter. It is distinguished from the others by the deep green color that lights its leaves. There is, too, a character of variability in the number of its stamens, which we never met with before in any other; instead of six, the original number, there often happens to be eight, and even ten. As to the specific name of stenophylla (straignt-leafed,) which some horticulturists have given it, we consider it altogether wrong, because it is worthless, and occasions confusion much to be regretted; indeed, in several other plants the leaves arc much straighter; and, moreover, this name is applied to several varieties or species, whose bearing and nature is very different. The name of flexilis seems to us much more convenient since it indicates both the general bearing of the plant and the reflected character of the leaves, at the same time expressing slightness; besides, it occasions no confusion with reflexa, and recurva, other species with leaves also pendent, but larger and more glaucous, a character rarely met with in the plant we describe.

THE FLOWER OF YUCCA FLEXILIS, OF NATURAL SIZE.

The Yucca flexilis is still rare, for it produces few buds, which are the only means of multiplying it. It happens sometimes that this species, as well as the Y. gloriosa, expands its flowers late in the fall, and consequently they are often destroyed by autumn frosts. - Revue Horticole.