When there is only one whorl the stamens are usually equal in number to the sepals or petals, and are arranged opposite to the former, and alternate with the flower is then the stamens are not equal in number to the sepals or petals, the flower is there is more than one whorl of stamens, then the parts of each successive whorl alternate with those of the whorl preceding it. The staminal row is tacoma general hospital flower delivery liable to multiplication of parts than the outer whorls.

A flower with a single row of stamens is the stamens are double the sepals or petals as regards number, the flower is diplostemonous; if more than double, additional rows of FIG. - Flower of cowslip Primula veris cut vertically. s, Sepals joined to form a gamosepalous calyx; c, corolla consisting of tube and spreading limb; a, stamens springing from the mouth of the tube; p, pistil. article - Irregular gamopetalous labiate corolla of the Dead-nettle Lamium album.

The upper lip u is composed of two petals united, the lower lip 1 of the two lips there is a throat is the part where the tube and the labiate limb the arching of tacoma general hospital flower delivery upper lip this corolla is called ringent.

- Irregular gamopetalous ligulate flower of Ragwort Senecio. - Flower of Paeonia peregrina,in longitudinal section. stamens may be developed in the usual centripetal acropetal order, as in Rhamnaceae; or they may be interposed between the pre-existing ones or be placed outside them, i.

develop centrifugally basipetally, as in geranium and oxalis, when the flower is said to be obdiplostemonous. When the stamens are fewer than twenty they are said to be definite; when above twenty they are indefinite, and are represented by the symbol 00. The number of stamens is indicated by the Greek numerals prefixed to the term androus; thus a flower with one stamen is monandrous, with two, three, four, five, six or many stamens, di- tri- tetr- pent- hexor polyandrous, respectively.

article The function of the stamen is the development and distribution of the stamen usually consists of two parts, a contracted portion, often thread-like, termed the filament fig.

25 f, and a broader portion, usually of two lobes, termed the anther a, containing the powdery pollen p, and supported upon the end of the portion tacoma general hospital flower delivery the filament in contact with the anther-lobes is termed the the FIG. c, Calyx; p, petal; e, stamen; s, calyx, petals and stamens spring from above the ovary o in which two chambers are shown each with a pendulous ovule; d, disc between the stamens and Strasburgers Lehrbuch mission of Gustav Fischer.

- Flowers of Aristolochia Clem- atitis cut through longitudinally. Young stamen is abortive, flower in which the stigma N is receptive and cannot perform and the stamens 3 have not yet opened; its II. Older flower with the stamens S anther is developed o n the c orolla dried up.

erX2 dth e hairs before the filament, and when the latter is not produced, tacoma general hospital flower delivery anther is sessile, as in the mistletoe. article The filament is usually, as its name imports, filiform or threadlike, and cylindrical, or slightly tapering towards its is often, however, thickened, compressed and flattened in various ways, becoming petaloid in Canna, Marania, water-lily fig.

32; subulate or slightly broadened at the base and drawn out into a point like an awl, as in Butomus umbellatus; or clavate, that tacoma general hospital flower delivery, narrow below and broad above, as in Thalictrum. In some instances, as in Tamarix gallica, Peganum Harmala, and Campanula, tacoma general hospital flower delivery base of the filament is much dilated, and ends suddenly in a flower delivery in tallahassee fl thread-like these cases the base may give off lateral stipulary processes, as in Allium and Alyssum filament varies much in length and in length sometimes bears a relation to that of the pistil, and to the position of the flower, whether erect or filament is usually of sufficient solidity to support the anther in an erect position; but tacoma general hospital flower delivery, as in grasses, and other wind-pollinated flowers, it is very delicate and hair-like, so that the anther is pendulous fig.

The filament is generally continuous from one end to the other, but in some tacoma general hospital flower delivery it is bent or jointed, becoming geniculate; at other times, as in the pellitory, it tacoma general hospital flower delivery is colourless, or of different in fuchsia and Poinciana, it is red; in Adamia and Tradescantia virginica, blue; in Oenothera and Ranunculus acrisyellow. article Hairs, scales, teeth or processes of different kinds are some times developed on the spiderwort Tradescantia virginica the hairs are beautifully flower delivery on internet, moniliform or necklace-like, and afford good objects for studying rotation of the are usually articulated to the thalamus or torus, and the stamens fall off after fertilization but in Campanula and some other plants they are continuous with the torus, and tacoma general hospital flower delivery stamens remain persistent, although in a withered are produced in the whorl of stamens by cohesion of the filaments to a greater or less extent, while the anthers remain free; thus, all the filaments of the androecium may unite, forming a tube round the pistil, or a central tacoma general hospital flower delivery when the pistil is abortive, the stamens becoming monadelphous, as occurs in plants of the Mallow tribe; or they may be arranged in two bundles, the stamens being diadelphous, as in Polygala, Fumaria and Pea; in this case the bundles may be equal or frequently happens, especially in Papilionaceous flowers, that out of ten stamens nine are united by their filaments, while one the postericr one is free fig.

When there are three or more bundles the stamens are triadelphous, as in Hypericum aegyptiacum, or polyadelphous, as in Ricinus communis castor-oil. In some cases, as in papilionaceous flowers, the stamens cohere, having been originally separate, but in most cases each bundle is produced by the branching of a single there are three stamens in a bundle we may conceive the lateral ones as of a stipulary Lauraceae there are perfect stamens, each having at the base of the filament two abortive stamens or staminodes, which may be analogous to sometimes are adherent to the pistil, forming a column gynostemium, as in Stylidium, Asclepiadaceae, Rafflesia, and Aristolochiaceae fig.

article - Quadrilocular or tetrathecal anther of the flowering Rush Butomus umbellatus. The anther entire a with its filament; section of anther b showing the four loculi. The anther consists of lobes containing the minute powdery pollen grains, which, when mature, are discharged by tacoma general hospital flower delivery fissure or opening of some is a tacoma general hospital flower delivery covering of the anther - the outer, or exothecium, resembles the epidermis,and often presents stomata and projections of different kinds fig.

69; the inner, tacoma general hospital flower delivery endothecium, is formed by a layer or layers of cellular tissue fig. 69, cf, the cells of which der Botanik, by per FIG. - Spikelet of Reed Phragmites communis opened out. a, b, Barren glumes; c, fertile glumes, each enclosing one flower with its pale, d; the zigzag axis rhachilla bears long silky hairs. In the young state there are usually four pollen-sacs, two for each anther-lobe, and when these remain permanently complete it is a quadrilocular or tetrathecal anther fig.

Sometimes, however, only two cavities remain in the anther, by union of the sacs in each lobe, in which case the anther is said to be bilocular or the anther has a single cavity, and becomes unilocular, or monothecal, tacoma general hospital flower delivery dimidiate, either by the disappearance of the partition between the two lobes, flower delivery topsfield ma by the abortion of one of its lobes, as in Styphelia laeta and Althaea officinalis hollyhock.

Occasionally there are numerous cavities in the anther, as in Viscum and form of the anther-lobes are generally of a more or less oval or elliptical form, or they may be globular, as in Mercurialis annua; at other times linear or clavate, curved, flexuose, or sinuose, as in bryony and to the amount of union of the lobes and the unequal development of different parts of their surface an infinite variety of forms is part of the anther to which the filament is attached is the back, the opposite being the division between the lobes is marked on the face colorado springs flower delivery the anther by a groove or furrow, and there is usually on the face a suture, indicating the line of suture is often towards one side in consequence of the valves being stamens may cohere by their anthers, and become syngenesious, as in composite flowers, and in lobelia, jasione, c.

article The anther-lobes are united to the connective, which is either continuous with the filament or articulated with it. When the filament is continuous with the tacoma general hospital flower delivery, and is prolonged so that the anther-lobes appear to be united to it throughout their whole length, and lie in apposition to it and on both sides of it, the anther is said to be adnate or adherent; when the filament ends at the base of the anther, then the latter is innate or these cases the anther is to a greater or less degree fixed.

When, however, the attachment is very narrow, and an articulation exists, the anthers are movable versatile and are easily turned by the wind, as in Tritonia, grasses fig.where the filament is attached only to the middle of the connective may unite the antherlobes completely or only is sometimes very short and is reduced to a mere point, so that the lobes are discount flowers for delivery or other times it is prolonged upwards beyond the lobes, tacoma general hospital flower delivery various forms, as in Acalypha and oleander; or it is extended backwards and downwards, as in violet fig.

71, forming a nectar-secreting Tacoma general hospital flower delivery officinalis the connective is attached to the filament in a horizontal manner, so as to separate the two anther-lobes fig. 72, one only of which contains pollen, the other being imperfectly developed and connective is joined to the filament by a movable joint forming a lever which plays an important part in the Stachys the connective is expanded laterally, so as to unite the bases of the anther-lobes and bring them into a horizontal line.

article The opening or dehiscence of the anthers to discharge their contents takes place either by clefts, by valves, or by the anther-lobes are erect, the cleft is lengthwise along the line of the suture - longitudinal dehiscence fig.

At other times the slit is horizontal, from the connective to the - side, as in Alchemilla arvensis fig. 73 and in Lemna; the dehiscence is then the anther lobes are rendered horizontal by the enlargement of the connective, then what is really longitudinal dehiscence may appear to be cleft does not always proceed the whole length of the anther-lobe at tacoma general hospital flower delivery, but often for a time it extends only other instances the opening is confined to the base or apex, each loculament opening by a single pore, as in Pyrola, Tetratheca juncea, Rhododendron, Vaccinium and Solanum fig.

74, where there are two, and Poranthera, where there are four; whilst flower delivery service manchester the mistletoe the anther has numerous pores for the discharge of the mode of dehiscence is the valvular, as in the barberry fig.

75, where each lobe opens by a valve on the outer side of the suture, separately rolling up from base to apex; in some of the laurel tribe there are two such valves for each lobe, or four in some Guttiferae, as Hebradendron cambogioides the Ceylon gamboge plant, the anther opens by a lid separating from the apex circumscissile dehiscence. article The anthers dehisce at different periods during the process of flowering; sometimes in the bud, but more tacoma general hospital flower delivery when the pistil is fully developed and the flower is either dehisce simultaneously or in the latter case individual stamens may move in succession towards the pistil and discharge their contents, as in Parnassia palustris, or the outer or the inner addison tx flower delivery may first dehisce, following thus a centripetal or centrifugal variations are intimately connected with the arrangements for transference of anthers are called introrse when they dehisce by the surface next to the centre of the flower; they are extrorse when tacoma general hospital flower delivery dehisce by tacoma general hospital flower delivery outer surface; when they dehisce by the sides, as in Iris and some grasses, they are laterally dehiscent.