The flowers, which appear from January to April, are bright yellow, about 1 to 1 1/2 inches long, the corolla funnel shaped.
The corolla is composed of five segments, which are reflexed or turned back and the crown has five erect or spreading "hoods," within each of which is a slender incurved horn.
The five petals of the corolla are furnished with long "claws" or, in other words, they are narrowly lengthened toward the base and inserted within the tubular and pale green calyx.
They are slender stemmed, about 1 inch across, with a wheel shaped, 4-parted corolla The seeds are contained in a much compressed capsule.
The juice of the corolla gives out to acids a beautiful green.
The corolla dried and reduced to powder will also afford a yellow pigment.
The juice of the corolla treated with alum makes a good permanent green ink.
After the pistil and stamina are drawn through the flower, press the anther of each filament down to the corolla with the head of the pin, and tip them with deep crimson.
For example: the corolla of a rhododendron falls from its position, leaving the interior of the flower pendent to the stem.
Paint in the corolla a small circle of crimson points, using for this purpose a sable brush.
The calyx is composed of five sepals, the corolla of four or five lobes, and the stamens are attached to the corolla.
We now come to those flowers in which both calyx and corolla exist, and shall deal first with the division Gamopetalae or Monopetalae, in which the petals are united.
The Meadow Rue belongs to the Ranunculaceae, as may be seen from the fruit of several distinct carpels, each containing a single seed, the corolla of distinct petals, and the numerous stamens inserted below the carpels.
The flowers are variable in colour and size, the prevailing tints being blue and yellow, and the diameter of the corolla occasionally reaching to one inch.
The flowers, which possess a sweet odour quite distinct from that of the orange, are in part hermaphrodite and in part unisexual, the outside of the corolla having a purplish hue.
The corolla shows great variety in form; it is imbricate in aestivation, the posterior petal being innermost.
The proboscis when in use is stretched out in front of the head and inserted into the corolla of a flower or elsewhere, for the absorption of liquid nourishment.
In the bud these hairs appear to cover the whole surface of the flower, but when the corolla expands they are seen to occupy the midrib of the petals as well as the tube of the corolla.
As is well known to all botanists, our sweet swamp Azalea (Azalea viscosa) has its corolla covered on the outside with innumerable clammy and glandular hairs.
At the proper moment, the corolla contracts in such a way as to bring the stamens nearer to the stigma, or in contact with it, so as to insure fecundation.
Within the cup formed by the calyx and corolla are placed the stamens and pistils of the flower, the first being the male organs proper, and the second the female organs of the flower.
Its chief difference from Polygaleae, is habit, foliation, and the perigynous insertion of corolla and stamina, and consequent union of the sepals.
The shape of the corolla varies widely, the differences being doubtless intimately associated with the pollination of the flowers by insect-agency.
This deficiency of the corolla is frequently, but not invariably, associated with an increased fertility.
So far there was nothing very peculiar; it remains to say, however, that on the outer surface of the second corolla were five petal-like lobes closely adherent to it below, but partially detached above.
The corolla may be hypertrophied in some cases, though the change is more rare than in most other organs.
In these flowers the calyx is normal, the tube of the corolla is traversed by ten vascular bundles, and the limb is divided into ten fimbriated lobes.
In what are termed monochlamydeous flowers both calyx and corolla are wanting, as in Salicineæ and many other orders.
In some few instances the calyx is not at all altered, but the carpellary leaf is trifoliolate, or even quinquefoliolate, the corolla being then absent.
Imperfect development of the whole or of some of the constituent parts is more common in the case of the corolla than in that of the calyx.
The colour of the adventitious segments was paler on the outside than on the inner surface, as in the corolla itself.
Moreover, the disposition of the colour was reversed, for in the outermost corolla the richest hues were on the outer surface, while in the inner or true corolla they were on the inside.
Now take a mounted needle in each hand and holding one needle on the flat part of the corolla split open the tubular part with the other.
Projecting from the tube of the corolla is a little yellow rod (the top of the stamens joined together); and coming from among the stamens are two slender recurved organs (the stigmas).
The corolla in both cases is all of one piece, but in the Dandelion it is as if the upper part of the corollawere split open one side and then made flat.
And, finally, in the Morning-Glory both the calyx and corolla grow out from below the ovary, while in the Dandelion its calyx of bristles and its corolla issue from above the ovary.
By keeping the lower part spread open with the needles, you will see that a number of delicate yellow threads grow from the sides of the corolla and are connected with the yellow stamen rod.
In the normal flower the irregular scarlet corolla attains three times the length of the calyx, and two stamens extrude from under the upper lip.
In other instances in which the corolla is composed of separate members, an unequal reaction is exhibited.
The corolla of nasturtium (Tropaeolum majus) consists of five approximately equal petals.
The corolla shows greater decrease in size in Melandryum and Silene, in diffuse light, though the relative form is maintained.
The most remarkable phenomenon in the cultivation of the Cyclamen is the development of a plume or crest on the inner surface of each corolla segment.
When the geranium first opens, all its ten stamens are lying flat on the corolla or coloured crown, as in the left-hand flower in Fig.
Pull off the yellow corolla (which will come off quite easily), and turn back the green leaves.
Lastly, when the delicate corolla has opened out, look at those curious yellow bags just at the top of the tube (b,2, Fig.
In another flower the whole corolla was bright yellow, but exactly half the calyx was purple.
Falling off, as leaves in autumn, or calyx and corolla before fruit grows.
The corolla of the flower forms the centre, surrounded by four petals, and commonly augmented by four corner sprays apparently representing the calyx from underneath brought into view.
The corolla usually occupies the exposed surface of one splint, and the four petals occupy the surrounding ones, as is shown in the natural size illustration (Figure 5).
Thus the flower was necessarily distinguished into the calyx, the corolla, the stamens, and the pistils; the sections of the corolla were termed petals by Columna; those of the calyx were called sepals by Necker.
The corolla of beauty screens the enchanted participants.
But it differs in having its corolla quite distinctly bilabiate, though of the same general tubular, funnel-form shape.
The corolla has a short, dark-maroon tube, encircled by a band of yellow, sometimes merging into white.
The calyx-lobes had just commenced to part in the center, showing the white, silkencorolla tightly rolled within.
Its corolla is elegantly slashed, and it is altogether a much finer flower than the southern form, S.
Mrs. Blochman has quaintly and aptly alluded to the corolla of this flower as a long and slender mitten, just fit for some high-born fairy's hand.
The upper lip of the corolla stands erect, its two lobes side by side, or crossed like two delicate little hands.
Filaments flattened and adnate to thecorolla below.
When the calyx and corolla are much alike, and seem like one floral circle, this is referred to as a =perianth=.
It may consist of a number of separate parts, called =petals=, or these may be more or less united, in which case the corolla is said to be gamopetalous.
Scales of thecorolla long, narrow, hairy, with expanded tips extending nearly to the sinuses.
The corolla of this is often half an inch long and half an inch across, of an orange-yellow, with deeper orange spots in the throat.
Filaments long and slender; adnate to the corolla below.
Lower lip of the corollawith three very large sacs.
The corolla is composed of a large number of long strap-shaped pointed petals, very thin and delicate, often beautifully coloured, and generally spreading outwards.
Why is the corolla white, while the rest of the plant is green?
The corolla of this beautiful and familiar flower (Fig.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "corolla" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: corona; flower; petal; pistil; receptacle; stamen; stigma; style
