Propagation by Offsets. When top-dressing, any offsets with roots should be removed, and as soon after as possible the remaining ones should be taken off, as it is much more desirable to do so early than later on, when repotting; for, when making the first growth, they are the more likely to root better, and stand a greater chance of making good plants before the season is over. Fill well-drained 3in. pots with sandy soil, and arrange about four offsets round the sides; place under a bell glass, or in a close handlight, watering very sparingly so as to prevent them damping off. They will soon establish themselves, after which air may be admitted, and the plants may ultimately be potted off singly. To induce choice varieties to make offsets, the top of the old plant should be removed and treated like the others, when, as a rule, several shoots will be produced, which in due time may be removed. By this means, a nice stock of the rarer kinds may be obtained; whereas, if such a course were not adopted, the rate of increase would be extremely slow.
Flowering. During the flowering period, watering, as already stated, must be carefully attended to, for if the plants are allowed to get dry, the flowers will quickly shrivel. They must also be kept well shaded from sunshine, which quickly destroys the delicate blossoms. As the trusses are developing, particular attention must be given to night protection. It is, perhaps, better to cover every night than to run the risk of exposing the unexpanded flowers to frost, as the effect is very prejudicial; in fact, if subject to frost, smooth even flowers may not be expected.
Seed Saving and Sowing. The only way to obtain new varieties is by seed; hence the value of careful seed-saving will be apparent. Severe discrimination must be exercised in the selection of parents, and the flowers must be very carefully crossed. The anthers should be removed from the pistillate parent, if possible, before expansion, so as to prevent any possibility of self-fertilisation; and, when the stigma is ready, the pollen must be conveyed by means of a small camel's-hair brush, care being taken not to mistake the brushes used in different classes. It has been observed in Auriculas that the issue from crossbred seed favours the pollen more than the pistillate parent; hence the necessity of selecting good pollen parents. It is best to confine hybridisation to separate classes—i.e., cross a Self with a Self, and a Green-edged variety with another of the same class. The importance of selecting the best in each class scarcely needs suggestion, having regard to constitution as well as the quality of the flowers. The seed should be sown as soon as ripe, or early in March, in well-drained pots, filled with sandy soil, which must be well watered previous to sowing. When this operation is completed, the seed must be lightly covered with coarse sand, a sheet of glass placed over the pot, and the latter stood in the hand glass, where the offsets are rooted. Some of the seedlings will appear in a month, but the bulk from that sown when ripe will not be seen until the following spring; while others will germinate even during the ensuing summer. The late comers should be particularly cared for, as they frequently produce the best varieties. When the seedlings are large enough, they must be pricked off in pots of sandy soil; and, when well established, potted off singly into small thumb pots, and afterwards encouraged as judgment suggests. Some growers allow the seedlings to remain in the store pots till they flower, when the best are kept, and those not required disposed of.
Insect Pests. Green fly are often very troublesome, and should be exterminated as speedily as possible, by tobacco fumigation, or by dipping the plants in a solution of Gishurst's Compound, or carefully prepared Fir-tree Oil, all of which are effectual. Many authorities denounce fumigation, while others advocate it. The roots are also attacked by a mealy louse, named Trama auriculæ, which clusters about the roots and collar of the plants, sucking nutriment therefrom; and although, provided they do not attack the collar, they have no greatly prejudicial effect on the plant, yet it is desirable to exterminate them. The only effectual way of accomplishing this is to remove all soil, and thoroughly cleanse the roots and collar in a solution of soft soap, with a little Fir-tree Oil added. Of course, this is most easily managed when repotting; and, unless the plants are very badly infested, it would not be advisable to run the risk of root washing later in the year.
Classes. Auriculas are now arranged in five classes, four of which constitute what are known as "show or stage Auriculas," while the other is known by the name of "Alpines." Each class is characterised by special points of distinction, which, in the opinion of the strict "florists" school, it is of the utmost importance to observe; and as there is room for systematists in this, as well as in any other branch of floriculture, we will follow the arrangement usually adopted, and describe the distinguishing features of, and enumerate some of the best varieties in, each class, with their raisers' names attached:
Green-edged. Outer edge green, or but sparingly dusted with powder; next, a zone of colour known as the body colour, which varies, the darkest being most esteemed; both edges of this zone should be even, especially the inner one, but there are few flowers perfect in this respect. Next to the body-colour is the paste, which occupies the space between the inner circle of the latter and the throat, this should be pure and dense, with a distinctly circular outline at the throat; the throat and tube should be bright yellow. Of course, this ideal standard has not yet been reached, as there are supposed defects in all or some sections of the flowers at present known. Leading Varieties: ADMIRAL NAPIER (Campbell), ALDERMAN WISBEY (Headley), APOLLO (Beeston), CHAMPION (Page), COLONEL TAYLOR (Leigh), DUKE OF WELLINGTON (Dickson), FREEDOM (Booth), GENERAL NEILL (Traill), HIGHLAND BOY (Pollitt), IMPERATOR (Litton), LADY ANN WILBRAHAM (Oliver), LORD PALMERSTON (Campbell), LOVELY ANN (Oliver), LYCURGUS (Smith), PRINCE OF GREENS (Traill), PRINCE OF WALES (Ashton).
Grey-edged. Edge heavily dusted with powder, so as almost to hide the normal green colour; other points same as the Green-edged varieties. Leading varieties: ALEXANDER MEIKLEJOHN (Kay), CHAS. E. BROWN (Headley), COMPLETE (Sykes), CONQUEROR OF EUROPE (Waterhouse), DR. HORNER (Read), F. D. HORNER (Simonite), GENERAL BOLIVAR (Smith), GEORGE LEVICK (Walker), GEORGE LIGHTBODY (Headley), JOHN WATERSTON (Cunningham), LANCASHIRE HERO (Lancashire), RICHARD HEADLEY (Lightbody), ROBERT TRAILL (Lightbody).
White-edged. Edge so heavily dusted with farina as to completely hide the green and give it a white appearance; the powder frequently as dense as on the paste portion; other points like the first. Leading varieties: ACME (Read), ANNE SMITH (Smith), ARABELLA (Headley), BEAUTY (Traill), BRIGHT VENUS (Lee), CATHERINA (Summerscales), CONSERVATIVE (Douglas), COUNTESS OF WILTON (Cheetham), EARL GROSVENOR (Lee), FAVORITE (Taylor), FRANK SIMONITE (Simonite), GLORY (Taylor), JOHN SIMONITE (Walker), NE PLUS ULTRA (Smith), REGULAR (Ashworth), SMILING BEAUTY (Heap), SYLVIA (Douglas), TRUE BRITON (Hepworth).
Selfs. Tube bright yellow, and circular at the top; paste dense, pure, with an even edge; all the rest of the flower of one colour, without shades or edging; any colour holds good. Leading varieties: APOLLO (Hay), BLACKBIRD (Spalding), C. J. PERRY (Turner), DUKE OF ARGYLE (Campbell), FORMOSA (Smith), GARIBALDI (Pohlman), HELEN LANCASTER (Pohlman), LORD OF LORNE (Campbell), MAZINNA (Pohlman), METEOR FLAG (Lightbody), METROPOLITAN (Spalding), MRS. DOUGLAS (Simonite), MRS. STURROCK (Martin), OTHELLO (Netherwood), PIZARRO (Campbell), TOPSY (Kaye).
Alpines. Centre golden yellow, or white, and destitute of powder; body colour various; edge one-coloured, shading off paler towards the margin. These are much hardier than any of the other classes, and will do well outside in most places. Leading varieties: A. F. BARRON (Turner), BEATRICE (Turner), BLACK PRINCE (Turner), BRONZE QUEEN (Turner), COLONEL SCOTT (Turner), DIADEM (Gorton), DUCHESS OF CONNAUGHT (Turner), EVENING STAR (Turner), GEORGE LIGHTBODY (Turner), JOHN LEECH (Turner), MRS. BALL (Turner), MRS. DODWELL (Turner), MRS. LLEWELLYN (Turner), MRS. MEIKLEJOHN (Meiklejohn), MRS. THOMSON (Turner), QUEEN VICTORIA (Turner), RUBENS (Turner), SAILOR PRINCE (Turner), SELINA (Turner), SPANGLE (Turner), SYDNEY (Turner), TRIUMPHANT (Turner).
AURICULATE. Having ear-like appendages.
AUSTRIAN ROSE. See Rosa lutea.
AVENA (derivation obscure). The Oat. ORD. Gramineæ. A genus of grasses with loose panicles and compressed spikelets. Of agricultural importance only, with the following exception, which is an annual of easy culture in ordinary garden soil. Propagated by seeds, sown in spring or autumn.
A. sterilis (barren). The Animated Oat. fl. in drooping panicles of large spikelets. h. 1½ft. to 2ft. Barbary, 1640. An elegant plant.