Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: June 27, 2025
Yet the pistil of each cabbage-flower is surrounded not only by its own six stamens but by those of the many other flowers on the same plant; and the pollen of each flower readily gets on its stigma without insect agency; for I have found that plants carefully protected from insects produce the full number of pods. How, then, comes it that such a vast number of the seedlings are mongrelized?
But this principle will almost necessarily be confined to the earlier stages of the process of reduction; for we cannot suppose that a minute papilla, for instance, representing in a male flower the pistil of the female flower, and formed merely of cellular tissue, could be further reduced or absorbed for the sake of economising nutriment.
He appears to dread accurate thinking, and to imagine that knowledge destroys the charm of nature. "Which," he asks, "comes nearest to the truth about love poor Lombroso's talk about pistil and stamen, or one of Shakespeare's sonnets?" The root, he says, is no explanation of the flower. This may be fine, but it is fine nonsense. Lombroso and Shakespeare are both right.
I found here a species of cactus, described by Professor Henslow, under the name of Opuntia Darwinii "Magazine of Zoology and Botany" volume 1 page 466, which was remarkable for the irritability of the stamens, when I inserted either a piece of stick or the end of my finger in the flower. The segments of the perianth also closed on the pistil, but more slowly than the stamens.
It is unfortunate that he did not consider such cases as the minute teeth, which never cut through the jaw in the ox, or the mammae of male quadrupeds, or the wings of certain beetles, existing under the soldered wing-covers, or the vestiges of the pistil and stamens in various flowers, and many other such cases. Although I greatly admire Prof.
The pistil, or female, continues to grow in length; and in a few days the stigma arrives again amongst the upper set, by the time they become mature. This wonderful contrivance is readily seen by opening the keel-leaf of the flowers of broom before they burst spontaneously. Balm.
An organ serving for two purposes, may become rudimentary or utterly aborted for one, even the more important purpose; and remain perfectly efficient for the other. Thus in plants, the office of the pistil is to allow the pollen-tubes to reach the ovules protected in the ovarium at its base.
It is assumed that the choice of the best ears indicates the plants which have had the best pollen-parents as well as the best pistil parents, and that selection here, as in other cases, corrects the faults of free intercrossing. But it is granted that this correction is only a slow one, and accounts in a great degree for the slowness of the progression.
Some parents teach their children at once that the pistil is the mother-part of the plant, caring for the young seeds, the stamens the father part, providing for them, and that the stamens and pistil growing in the same flower are brothers and sisters.
After they have shed their dust, they turn themselves away outwards; and the pistil, or female, continuing to grow a little taller, is applied to the upper stamens. See Gloriosa, and Genista. All the plants of this class, which have naked seeds, are aromatic. Dodecatheon, American Cowslip. Five males and one female. The males, or anthers, touch each other.
Word Of The Day
Others Looking