consists of squares of slate grooved into each other, and strengthened by piers or pillars, which are placed at certain distances-and, being built with circular and square bricks cemented together, are round and stand out a little from the wall. The trees are fastened to wires, which are fixed into the slate about six inches apart. Mr. Grubbe stated that this wall could be erected for 5d. the square foot, being ld. less than even a 4-inch brick wall, which costs 6d. the square foot. From the gardens at Chatsworth were two bunches of West St. Peter's Grape, shrivelled, and in the condition of fine raisins, which Mr. Paxton stated to be of last year's growth, and to have been kept through winter at an almost nominal expense of fuel. The house they have been kept in was in a low situation, and therefore not well suited for late Grapes. Mr. Paxton considers it a better Grape than the Black Hamburgh; and if both have the same treatment, the St. Peter's will keep six weeks or two months longer than the Hamburgh. Along with these were also the following plants :-Dendrobium Paxtonii, a large specimen, with orange blossoms, having a black spot in the centre; also Eria excavata, cut specimens of Dendrobium Wallichii, D. cærulescens, and Coelogyne interrupta, the latter with pretty white and yellow flowers. A Knightian medal was awarded for the Dendrobium Paxtonii. Messrs. Loddiges, of Hackuey, sent Dendrobium macrophyllum in good condition; this rare species is remarkable for the strong aromatic fragrance of its fine lilac blossoms. A Knightian medal was awarded for it. From Mr. Green, gardener to Sir E. Antrobus, Bart.,was a most beautiful large specimen of Erica aristata major, uniformly covered down to the pot on all sides with pretty carmine and white waxy blossoms; it was also feathered with healthy dark green leaves to the very extremities of the branches. Along with it was a seedling Calceolaria (called zebrina), the flowers of which were of a bright yellow, beautifully spotted with brown; Amaryllis hybrida, and Boronia anemonefolia, the latter with pretty rose-coloured flowers. A Banksian medal was awarded for the Erica. Mr. Jackson, of Kingston, sent Tremandra Hugelii, a greenhouse plant, with drooping star-like lilac blossoms, having a small dark spot in the centre. From Mr. Fielder, gardener to W. Linwood, Esq., was a cut specimen of Phycella chloracra, a bulb sent by Mr. Hartweg from rocks near Saragura; the flower-stem that bore the handsome but not gaudy green, red, and yellow blossoms sent was said to have been 3 feet 2 inches high. Mr. Robertson, gardener to Mrs. Lawrence, sent a collection of plants containing Cyrtopodium Andersonii, rarely seen in such perfection; an enormous specimen of Maxillaria Harrisonii in wonderful health; Brassia Wrayæ, a species from Guatemala; Oncidium ampliatum major; O. luridum; a Hippeastrum, and a well-grown plant of Erica Willmoreana. A Knightian Medal was awarded for the three first. From Messrs. Henderson, of Pine-apple Place, was Odontoglossum Rossii, sent from Belgium under the name of Oncidium Bergamia. From the same collection were Dillwynia tenuifolia, a scarce New Holland shrub, which has a gracefully drooping habit, and is a remarkably free bloomer; Brachysema platyptera; Epidendrum aloefolium; Boronia anemonefolia, and Dendrobium cærulescens covered with blossom. A certificate was awarded for the Dillwynia and Brachysema. Mr. Ivery, of Peckham, exhibited seven seedling Cinerarias, and a plant of the new Nemophila discoidalis. From Mr. Lee, gardener to P. Pole, Esq., was a Cucumber which measured 21 inches long. From the garden of the Society were the following plants :-Acacia hispidissima, Boronia anemonefolia, Begonia papillosa, B. acida, Columnea Schiedeana, the larger variety of Oncidium ampliatum, Acanthophippium bicolor, with curious yellow cupped blossoms, and Echeveria rosea, a greenhouse plant remarkable for its bright red leaves that are more conspicuous than the flowers, which are of the same colour. It was sent to the Society by Mr. Hartweg, from Mexico. It is not impatient of cold, having been sometimes exposed to a temperature as low as 35°; it will also, on the contrary, stand any amount of sun-light, and it keeps in bloom during the whole winter, so that it is a very useful plant for many purposes. With these was a flower of Aristolochia Gigas, or "Pilate's Nightcap" a twining stove plant, which bears singular large concave blossoms, having considerable resemblance to those of A. foetens, but much larger, and assuming more the appearance of a cap.

The Floral Exhibitions in London at the Regent's Park Royal Botanic Gardens, Horticultural Society, at Chiswick Gardens, and the Royal South London, at the Surrey Zoological Gardens, during May, June, and July, &c. They are expected to far exceed any former ones in the quantity and quality of specimens.

At Regent's Park Gardens, on Tuesday, April 30th, June 4th, and July 2nd. Chiswick Gardens on May 18th.

Surrey Zoological Gardens, Tuesday, June 18th, July 23rd, and September

17th.

FLORICULTURAL CALENDAR FOR APRIL.

GREENHOUSE.-During the early part of May a few frosty nights generally occur; in consequence of which, it is advisable not to take out the general stock of plants before the middle of the month, or even, in cold situations, before the 25th. Whilst the plants, however, remain in the greenhouse, let them have all the air that can be given during the day, and at nights if no appearance of frost. Particular attention will now be required to afford an ample supply of water to free growing kinds of plants. Frequently syringe them over the tops at evening just before sun-set. If any of the plants be attacked with green fly, or any other similar insects, apply a sprinkling of tobacco-water, diluted with water, by adding to one quart of the liquid five of water; in applying which to the plants, syringe them at the under as well as upper surface of the leaves; a repetition will rarely be required. This mode of destroying the insects is far preferable to fumigation, no injury being sustained by it, even if applied in a pure state. The liquid can be obtained of tobacconists at 10d. or Is. per gallon. It is a good time for increasing plants by cuttings, striking in moist heat. Greenhouse Annuals-as Salpiglossises, Globe Amaranthuses, Balsams, Coxcombs, &c.-should be encouraged by a little warmth, and shifted into larger pots early in the month; so that the plants may make a show, to succeed the removal of the general collection of greenhouse plants. Cuttings or suckers of Chrysanthemums should now be taken off and potted in rough, rich compost, having a free drainage, if not done before. Achimenes coccinea, longiflora, rosea, &c., plants, should be potted singly into a light rich soil, and be forwarded in the stove, and repotted as they advance in growth, not too much at a time, but as root room appears necessary. Lobelias for the greenhouse should be similarly treated, as to potting, &c.

FLOWER GARDEN.-Continue to protect beds of Hyacinths, Tulips, &c. Carnations in pots should be encouraged by manure water, &c., in order to grow them vigorously; care in tying them will be required. By the middle of the month half hardy annuals-as China Asters, Marigolds, &c.—may be planted out in the open borders. Some of the best kinds may be potted, as done to the more tender sorts. Many kinds of greenhouse plants-as Petunias, Salpiglossises, Salvias, Fuchsias, Heliotropes, &c.-should now be planted out in the open border. Dahlias that have been forwarded in pots, frames, &c., may be planted out towards the end of the month. Seedlings may be pricked out, in a warm situation, having a deep, fresh, rich soil. When Stocks, Mignonette, China Asters, &c., are wished to bloom late in the year, seeds may now be sown, either under a frame or on a warm border. Slips of double Wallflowers should now be put in under a hand-glass. Seeds of biennials-as Sweet Williams, Scabious, Campions, &c.-should now be sown. Tuberoses. for late flowering, should now be repotted or put into warm borders. Offsets of Campanula pyramidalis should be repotted in rich soil, and placed in the greenhouse. Repotting must be continued till they cease to grow; by this means the plants will reach eight feet high, and be very branching. Cuttings of Geraniums, Salvias, Heliotropes which have been struck for planting into open beds, and not potted off, should be immediately done, so as to be well prepared for turning out by the 20th. Auriculas and Polyanthuses will require shading, but admit all possible air, or the flower stems will be very weakly. Protect from rain. Ranunculuses and Anemones shade, water, &c.-See Articles in former Numbers on each.

THE

FLORICULTURAL CABINET,

JUNE 1ST, 1844.

PART I.

EMBELLISHMENTS.

ARTICLE I.

ACHIMENES PICTA.

THIS very lovely flowering plant has recently been introduced into this country, and has been distributed to several of the principal nursery establishments by the London Horticultural Society. We are not aware of its native habitation, but as it flourishes well in the same circumstances and treatment as the other new species, we suppose it to be from the same country. The plants we saw, in most profuse bloom, were about a foot high, and had been kept in a plant-stove. There is no doubt but, if grown in a hotbed frame during its early stage, it may be removed into a warm greenhouse, &c., to be a summer's ornament there. We understand it will bloom from April to the end of October, and certainly deserves a place wherever it can be grown.

NERIUM OLEANDER VAR. TANGII.

We met with this very beautiful and ornamental plant in the collection of Messrs. Lane and Sons, of Berkhamstead, and from whom we obtained plants. It grows freely, and blooms profusely, even when the plants are quite dwarf. It is of easy culture, and one of the most interesting of greenhouse plants, well deserving a place in every one.

Vor. XII. No. 136.

L