This is the variety most generally cultivated in Great Britain. Its form varies from flat to globular, or oval; bulb large, three inches wide, and full two inches in depth; outside coating brown, of firm texture.

Divested of this, the color is reddish-brown, tinged with green. Flavor comparatively mild. It is a very hardy sort, succeeds in cold localities, and keeps well.

The Strasburg and Deptford Onions much resemble the common Yellow Onion of New England; and the difference between the sorts is not great, when English-grown bulbs of the first-named varieties are compared with the bulbs of the Yellow Onion, American-grown: but seeds of the Strasburg or Deptford, raised in England and sown in this country, almost invariably fail to produce plants that form bulbs so generally or so perfectly as American-grown seeds of the Yellow Onion.

TOP OR TREE ONION.

Egyptian.

Bulb large, a little flattened; producing, instead of seeds, a number of small bulbs, or onions, about the size of a filbert, which serve as a subst.i.tute for seeds in propagation. The flesh is coa.r.s.e; and the bulbs are very liable to decay during winter, unless kept in a cool and dry situation. The variety has been considered rather curious than useful.

_Planting and Culture._--"Either the bulbs formed in the ground, or the small ones upon the stems, may be planted out in April or May. The former are set one foot apart in each direction, and the stem-bulbs four inches apart in rows eight inches asunder. Stems that bear heavily require to be supported. When ripe, the stem-bulbs should be dried, and kept free from damp in a cool place."

TRIPOLI. _Thomp._

Flat Madeira. De Madere Plat. _Vil._

This is one of the largest varieties. The bulb tapers abruptly from the middle to the neck, and almost equally so to the base. It is five inches and upwards in diameter; color light reddish-brown,--beneath the skin, pale brownish-red, tinged with green.

It requires the whole season, and in some localities is considered excellent for a late crop. The flesh is soft, and the bulbs soon perish after being taken from the ground. In its season, it is much esteemed for its mild and delicate flavor. Like the Madeira Onion, the plants fail to form bulbs so generally as other varieties. Not adapted to the climate of the Northern States.

TWO-BLADED. _Thomp._

Double Tige. _Vil._

This variety derives its name from the fact that the small bulbs have generally but two leaves. The larger ones have more; rarely, however, exceeding four: but, unless by far the greater portion have only two leaves, either the seed or the cultivation is at fault.

The bulbs are small, flat, light-brown, very firm, and attain maturity early; the neck is small, and the top of the bulb is depressed or hollowed around the stem. It keeps well, and is an excellent variety.

WHITE GLOBE. _Thomp._

[Ill.u.s.tration: White Globe.]

Form nearly ovoid, very regular and symmetrical; skin greenish-yellow, marked with rose-colored lines,--the pellicle changing to white on drying. The bulb measures about four inches in depth, and two inches and three-fourths in its largest diameter. It keeps well, and is an excellent variety.

YELLOW GLOBE.

Nearly allied to the preceding variety; the size and form being the same. Skin reddish-yellow. It is hardy, productive, of good flavor, keeps well, and deserves general cultivation.

WHITE LISBON.

Lisbon. _Thomp._ Early Lisbon. White Florence.

A very large, globular onion, measuring four inches in diameter, and about four inches in depth; neck comparatively thick; skin smooth, thin, clear, and white.

It is a late variety; and, although comparatively hardy, requires a long, warm season for its full development. Under the most favorable conditions, both with regard to soil and exposure, many of the plants fail to form a good bulb. On account of its hardiness, it is a good sort for sowing in the autumn for a supply of young onions for spring salads; or, if these young bulbs be set in the open ground in April, fine, large onions will be formed towards the end of summer. The variety is better suited to the climate of the Middle States than to that of the Northern and Eastern.

WHITE PORTUGAL, OR SPANISH. _Thomp._

White Spanish. White Reading. Cambridge. Soufre D'Espagne. _Vil._

A very large, flat onion, measuring three inches and upwards in width by about two inches in depth; skin loose, of a pale-brown or yellowish-brown, falling off spontaneously, and exhibiting the next coating, which is greenish-white. It has a small neck, and is particularly mild flavored. One of the best for early winter use, but early decays.

Very distinct from the White Portugal of the New-England markets.

YELLOW ONION.

Silver-skin of New England.

[Ill.u.s.tration: Yellow Onion.]

One of the oldest varieties, and, as a market onion, probably better known and more generally cultivated in this country than any other sort.

The true Yellow Onion has a flattened form and a very small neck. Its size is rather above medium,--measuring, when well grown, from three inches to three inches and a half in diameter, and from two inches to two inches and a half in depth. Skin yellowish-brown, or copper-yellow,--becoming somewhat deeper by age, or if exposed long to the sun; flesh white, fine-grained, comparatively mild, sugary, and well flavored. It keeps well, and is very prolific: few of the plants, in good soils and seasons, fail to produce good-sized and well-ripened bulbs. For the vegetable garden, as well as for field culture, it may be considered a standard sort.

The Danvers Onion, which is but a sub-variety of the common Yellow, may prove somewhat more profitable for extensive cultivation, on account of its globular form; but neither in its flavor nor in its keeping properties can it be said to possess any superiority over the last named.

The term "Silver-skin," by which this onion is very generally though erroneously known throughout New England, has created great confusion between seedsmen and dealers. Much perplexity might be avoided if its application to the Yellow Onion were entirely abandoned. The genuine Silver-skin, as its name implies, has a skin of pure, silvery whiteness; and is, in other respects, very dissimilar to the present variety.

When extensively cultivated for the market, it should be sown and subsequently treated as directed for the Danvers Onion. The yield per acre varies from four to six hundred bushels.

ROCAMBOLE.

Allium scorodoprasum.

This plant is a half-hardy perennial from Denmark, partaking of the character of both the leek and garlic. Bulbs or cloves similar to those of the common garlic, with much the same flavor, though somewhat milder; leaves large; flower-stalk about two feet high, contorted or coiled towards the top, and producing at its extremity a group of bulbs, or rocamboles, intermixed with flowers.

_Propagation and Culture._--It is propagated by planting either the underground bulbs, or the small cloves, or bulbs, that are produced upon the stem of the plant. These should be set in April, in drills ten inches apart, and four or five inches asunder in the drills. In the following August they will have attained their full size, and may be used immediately; or they may be taken up, spread to dry, tied in bunches, and housed, for future consumption. All the culture required is the removal of weeds, and the occasional stirring of the soil.

_Use._--"The cloves, or small bulbs, as well those from the stem as those beneath the surface of the ground, are used in the manner of shallots and garlics, and nearly for the same purposes."

There is but one variety.

SHALLOT.

Allium Ascalonic.u.m.

The Shallot (sometimes written Eschalot) is a native of Palestine,--the specific term "Ascalonic.u.m" being derived from Ascalon, a town in Syria: hence also the popular English name, "Scallion."