This magnificent plant is one of the most beautiful species of the genus _Cypripedium_. Several varieties of it are known, and though they are all good and well worth growing, that which we have selected for illustration is the best and darkest that has come under our notice. The plant from which our figure was taken, bloomed in the Victoria Nursery, and had five flower-spikes, two of which have been in bloom for the past six weeks, and are now as fresh as ever.
_Cypripedium Stonei_ was first flowered by Mr. Stone, gardener to John Day, Esq., of High Cross, Tottenham, after whom it has been named. It was for a long period a very rare species, and, indeed now, though small plants may be purchased for a moderate sum, yet large specimens are scarce and valuable. It makes a fine show plant, its lasting qualities being a great recommendation to it, both from an exhibition and decorative point of view.
The plant is a native of Borneo, and was introduced to this country by the Messrs. Low, of Clapton. It produces dark green foliage of about twelve or in some of the varieties we have seen as much as fifteen inches in length. From the centre of this tuft of leaves the flower-spikes are produced and rise to a height of about two feet, each bearing three or four of its large slipper-shaped blossoms, which are the most exact representations of a shoe or slipper of those of any of the species, and most completely justify the trivial name of the genus, Lady’s Slipper. The sepals are large, white, striped on the veins or nerves, with dark purple, and tinged with yellow; the petals are five inches in length, and are yellowish, streaked and blotched with purple; and the lip is large and of a dull reddish-purple, veined with deeper purple-red. It is of free-blooming habit, and when the growths are strong it produces a flower-spike from each crown, but it takes some considerable time to complete its growth before it sends forth its spikes; indeed, it begins to grow soon after its blossoms have faded. The plant having no thick fleshy bulbs from which to derive support, requires a more continuous supply of moisture than many other Orchids. The roots are coarse and fleshy, and should in consequence be supplied with a stronger soil than is required by some of the other kinds. We find it to thrive best in good fibrous loam, with a small quantity of charcoal, and a little leaf-mould or peat, all being well mixed together, giving the pots good drainage, but not so much as is required in the case of _Cattleyas_, for example. As it is a strong rooting plant, it is best grown in a pot, and should be a little elevated above the rim. We have found the East India house to supply the most suitable atmospheric conditions in which to cultivate it; here it should be placed on the side-tables near the light, but out of the sun. The finest specimen we have seen exhibited was staged by Mr. Child, gardener to Mrs. Torr, Garbrand Hall, Ewell, Surrey, at the South Kensington Show, in 1878.