In Garidella, the nectaries are five bilabiate ones. nine linear flat bent bodies, perforated at the base on the inside; Trollius has Isopyrum has five equal tubulose short nectaries, with a trilobate mouth inserted into the receptacle within the petals.

In Arum, the nectaries resemble the filiments of stamens, only that they thicken at bottom; they come out in two rows from the middle of the spadix; in Peganum, the filiments themselves are dilated into nectaries at the base; in Fevilea, they consist of five compressed bent threads placed alternate with the stamens; in Trichilia, the nectary is cylindric and tubulose, formed out of the ten filiments shorter than the petals with a five toothed mouth. By this time it will be observed, that many nectaries already mentioned have an intimate connexion with the germ, it is a situation so common with this part of the flower that some persons have suspected the sole or principal use of it is to supply and foster the germ. Accordingly there are several other genera in which it is thus placed; in Mirabilis, it is permanent, globose, and incloses the germ; in Cissus, it is a ring sounding the germ; in Cynanchum it is cylindric with a five-toothed mouth; in Apocynum, Asclepias, and Stapelia it is made up of five bodies, which in the second, and last entirely conceal the stamens and pistils, and in the last also forms a double star, all of them about the germ, in Gaultheria; it is made up of ten short awl shaped crest bodies surrounding the germ about the sta

mens.

It must not be dissembled, that of whatever use these bodies may be to the germ when they adhere to it, or are near it, they are frequently found on other parts of the fructification. Many instances of this have already occurred, and to these we may add, that they are found on the petals in Bromelia, growing to each of the three above the base; in Berberris in two roundish orange coloured bodies at the base of each; in Hermannia each petal having a little membrane, altogether forming a cowled tube; Hydrophyllum, in Cumina or plates growing to them, and in Myosorus being five awl shaped bodies. The nectary is a globose gland on the exterior tip of the anthera; in Adenanthera, at the base of them; in Ambrosinia, on the filiments, in form of glands; in Dictamnus, in form of scales; in Zygophyllum placed horizontally on the filiments; in Plumbago, and lastly, the nectaries are not unfrequently placed on the receptacle as in Clutia, and some others; but these are so close to the germ, which takes its rise from the same base that they may very well be supposed to be placed there for its use.

But what shall we say when we find the nectary in the incomplete staminiferous flowers, which have no germ, as in Salix, where it certainly cannot be of any immediate use to the germ, which is not only on a distinct flower but on a different plant; this however being the most important part of the vegetable, since it is destined by nature to produce a new one of the same kind, and all the other parts of the flower being subservient to this, in some measure, whatsoever is immediately useful to these may fairly be said to be immediately serviceable to the germ.

Hitherto we have observed, that this beautiful part of the flower is generally single, though in many cases formed of several portions. In some genera, however, it is double; in Krameria, there are two nectaries, one above another; in Paullinia, there are also two, but differing from each other, one consisting of four petals inserted into the claws of the real petals, the other four glands at their basis, Clusia has two sets of nectaries one within the other.

In my next, I shall commence a description of the Linnean Classes and Orders, with a figure of each class.

COLLECTIONS AND RECOLLECTIONS.

ARTICLE XIV.

ON A NEW METHOD OF WRITING ON ZINC, FOR LABELLING PLANTS.-Mr. Henry Braconnot, the celebrated French Chemist of Nancy, to whom we are indebted for the curious transformation of rags and other similar vegetable substances into starch, gum, and sugar, by the agency of Oil of Vitriol, and whose name is well known in the chemical world for various researches connected with the analysis of vegetable substances, has given in the last number of the Annales de Chimie et de Physique, a preparation for writing on plates of zinc to label plants. The writer having a dislike to painting in oil, which is often inconvenient, and never endures a long time, resolved to turn his attention to some other way which would prove both ready and durable. The system of writing on zinc with a black crayon, which was accidentally discovered by M. Symon an Amateur at Brussels, and noticed in the Revue horticole for October 1832 and the Bon Jardinier for 1833, possessing many imperfections, Mr. Braconnot to try some experiments, being anxious to obtain a liquid, or a species of ink, which would be perfectly durable when exposed to the changeableness of the weather, and also one with which he could write with ease. This end, after several proofs, he is induced to believe he has in a great measure attained. If it answers he will have done both the botanists and amateurs a real service. The preparation is as follows :

Take Verdigres in powder one part,
Salamoniac in powder one part,
Lamp black (Mori de Fumea) half a part,
Water ten parts;

Mix these in a glass or pot mortar, at first only adding as much water as will mix it well, then add the remainder of the water, when placed in a vessel, let it be well shaked up from time to time and in a few days it will be ready for use. This is not only excellent for labelling plants, but also for marking objects it is wished to preserve in low, wet, situations, and for marking key, becoming quickly dry and being very durable.

T. HARDCASTLE, PRINTER, CHURCH-STREET, SHEFFIELD.

THE

HORTICULTURAL REGISTER,

SEPTEMBER 1ST, 1834.

HORTICULTURE.

ARTICLE 1.-A FEW REMARKS ON THE CULTURE OF THE CABBAGE (BRASSICA.)

THE Cabbage is well known and universally cultivated; the varieties and subvarieties are so numerous and bear in some cases so little resemblance to each other, that it would scarcely be credited that they have sprung from one common origin.

Mr. De Cadolle has given in the Horticultural Trans., Vol. 5, a new arrangement of the cultivated species of Brassica, which is as follows;

1. Sea Colewort or Cabbage, or Wild Cabbage.

2. Greens, Kale or Borecoles.

3. Savoy-Cabbages.

4. Cabbages Red and White.

5. Chou rave or Turnip-stemmed Cabbage.

6. Cauliflower and Broccoli.

The common red and white Cabbages only will be treated on in the following remarks, the other divisions will be the substance for a future paper. The sorts most to be recommended, when a selection is desired, are:

Of these Early Emperor, Well's Early, Young's Early, and Dwarf American, are new and very valuable; indeed the Early Emperor has been pronounced by some gardener's the very best early Cabbage grown, though we do not think it surpasses the other new sorts named with it. The Vanack is considered new by many, but this is a misVOL. III. NO. 39.

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