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pollen

Definitions

  • WordNet 3.6
    • n pollen the fine spores that contain male gametes and that are borne by an anther in a flowering plant
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: One ragweed plant can release as many as a million grains of pollen in one day
    • Pollen Fine bran or flour.
    • Pollen (Bot) The fecundating dustlike cells of the anthers of flowers. See Flower, and Illust. of Filament.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Bees can communicate with other bees by dancing. Their dance can alert other bees as to which direction and the distance nectar and pollen is located
    • n pollen A fine yellowish dust or powder produced in the anther of a flower (whence it is discharged when mature), which when magnified is found to consist of separate grains of definite size and shape; the male or fecundating element in flowering plants: the homologue of the microspore in cryptogams. The individual grains are usually single-celled and of a globular or oval form, but they may occasionally be composed of two or several cells, curiously irregular in shape. They are often beautifully ornamented with spines, angles, lines, etc., and while they are very uniform in the same species they often differ widely in different species or families. Pollengrains are usually formed in fours by the division of the contents of mother cells into two parts and these again into two parts. Each grain has two coats, the inner of which is called the intine and the outer the extine. See pollen-tube.
    • pollen To cover or dust with pollen; supply with pollen. Tennyson, Voyage of maeldune.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: In the early days of modern theater, artificial lighting was produced by throwing pollen grains of the club moss which is highly flammable when placed on a hot surface onto a hot shovel.
    • n Pollen pol′en the fertilising powder contained in the anthers of flowers: the male or fecundating element in flowers
    • v.t Pollen to cover with pollen
    • ***

Quotations

  • James Russell Lowell
    James%20Russell%20Lowell
    “Books are the bees which carry the quickening pollen from one to another mind.”

Etymology

Webster's Revised Unabridged Dictionary
L. pollen, fine flour, fine dust; cf. Gr.

Usage

In literature:

It grows on the stamens, and is a fine dust called pollen, until we manufacture it into wax.
"Policeman Bluejay" by L. Frank Baum
He knew too much of the power of that yellow pollen that breeds madness in the male.
"The Dop Doctor" by Clotilde Inez Mary Graves
This generally throws enough pollen into the air so that an abundance of it reaches each receptive stigma.
"Tomato Culture: A Practical Treatise on the Tomato" by William Warner Tracy
Dr. Trelease refers to several observations on proterandry (maturing of the pollen before the stigmas of the pistils) in the pecan.
"The Pecan and its Culture" by H. Harold Hume
In many species the pollen is, and no doubt it originally was in all, carried by the air.
"The Beauties of Nature" by Sir John Lubbock
The ripe pollen, falling into the ripe ovary, would fertilize the seeds.
"Every Girl's Book" by George F. Butler
At some other places, however, this species fruits readily when fertilised with its own pollen.
"The Variation of Animals and Plants Under Domestication, Volume II (of 2)" by Charles Darwin
Pollens, Henry, fur trader, 109.
"Chronicles of Border Warfare" by Alexander Scott Withers
The stigma, if pollen suffice, should be covered with pollen.
"Manual of American Grape-Growing" by U. P. Hedrick
These, as they devour nectar, dust themselves with the pollen near by.
"Little Masterpieces of Science:" by Various
It carries its pollen on its abdomen and not upon its thighs.
"Under the Maples" by John Burroughs
They are white in color, crowded together on the spike and consist of stamens which hold the pollen.
"Philippine Mats" by Hugo H. Miller
Spores or pollen, it seemed to be.
"Where the World is Quiet" by Henry Kuttner
Every bloom can be pollinated and practically every grain of pollen utilized under these secure conditions.
"The Gladiolus" by Matthew Crawford
It's that the male trees produce so little pollen.
"The Venus Trap" by Evelyn E. Smith
They contain no honey, and are visited by insects for the sake of the pollen, which is plentiful.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4" by Various
And here is pollen in fancy wrappers.
"The Pond" by Carl Ewald
You know perfectly well that those detestable snobs, the Pollens, don't think Fane good enough for Shelagh in spite of his money.
"The Brightener" by C. N. Williamson
As a rule it is the male or pollen-bearing catkins that are most ornamental.
"Trees and Shrubs for English Gardens" by Ernest Thomas Cook
Pollen is transferred by the wind to the long styles.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 4" by Various
***

In poetry:

"I liked all learning
And wished to share it
Abroad like pollen
For all who merit.
"Thomas Jefferson" by Stephen Vincent Benet
for leather accrues
The miracle of the streets
The scents & smogs &
pollens of existence
"Wilderness" by James Douglas Morrison
A face, the whiteness of a water-flower,
And pollen-golden hair,
In shadow half, half in the moonbeams' glower,
Lifts slowly there.
"Rembrandts" by Madison Julius Cawein
Fire-white from curtains of intensest blue
The centre of the speedwell gleams; so fair,
So mystic-frail the tremulous pollen-worlds,
Divinity itself seems slumbering there.
"Little Things" by Mary Webb
As she flitted by garth and slipped through glade,
Her light limbs winnowed the wind, and made
The gold of the pollened palm to float
On her budding bosom and dimpled throat.
"The Passing Of Spring" by Alfred Austin
See, sweetheart, how the lilies lay
Their lambent leaves about our way;
Or, pollen-dusty, nod and float
Their moon-like flowers around our boat.--
The middle of the stream we've reached
Three strokes from where our boat was beached.
"One Day And Another: A Lyrical Eclogue – Part II" by Madison Julius Cawein

In news:

The substances might be extracts from pollen, house dust mites, cats, cats, dogs or rabbits.
Doctors and pollen counters say it could have been a lot worse.
There will also be a sharp decrease in pollen levels.
But it wasn't just humans who had been suffering from ragweed and other pollens this fall.
Tree pollen counts plummet after rain, but allergy sufferers aren't in the clear in New Jersey.
COLUMBIA — Ragweed pollen is more prevalent this fall than it has been in the past 10 years, according to data collected by the St Louis County Department of Health.
Note the packet of pollen on its leg.
Active early tree pollen season may be to blame.
Dryness spikes fire danger and pollen count.
According to data from several sources, tree pollen is in the "high" range in Minnesota these days.
Pollen Count is provided by the City of Albuquerque Air Quality Department.
Pollen counts are especially high in the Southeast this year.
Bad news if you have allergies: tree pollen is Very High.
A warm winter is sending pollen counts soaring to record levels in Georgia.
If you check online for pollen count forecasts in your area, make sure you're going to an accurate source.
***

In science:

It is accepted that the random walk of each pollen is a result of a random “kick” that comes from the solvent. It is assumed that the “kicks” are result of the action of random “sources” that originate from the discrete atomic structure of the solvent.
Fluctuations and Long-Term Stability: from Coherence to Chaos
Then the random walk of each pollen is successfully described by adding stochastic force to the deterministic friction in the equation of motion so that the stochastic force to match the behavior of the random “kicks”.
Fluctuations and Long-Term Stability: from Coherence to Chaos
Further, the transition from the Langvin to Einstein-Smoluhowsky equation for the diffusion on coarse-grained time scale demands well-defined concentration of the pollen species.
Fluctuations and Long-Term Stability: from Coherence to Chaos
On the other hand, since the size of the pollen is much larger than the size of the solvent molecules, it is obvious that the “sources” must be spatially extended.
Fluctuations and Long-Term Stability: from Coherence to Chaos
Another example of random motion in classical physics is provided by the Brownian motion of pollen grains in a fluid.
Hidden Variables, Non Contextuality and Einstein-Locality in Quantum Mechanics
We know here that the randomness of the motion of pollen grains is due to their being constantly buffeted by the large number of molecules of the fluid.
Hidden Variables, Non Contextuality and Einstein-Locality in Quantum Mechanics
The molecules of the fluid remain hidden to our view under the microscope used to observe pollen grain.
Hidden Variables, Non Contextuality and Einstein-Locality in Quantum Mechanics
Flowering, sex ratios, pollen-ovule ratios, fruit set, and reproductive effort of a dioecious tree, Myristica Insipida (Myristicacea ), in two different rain forest communities.
Overall and Pairwise Segregation Tests Based on Nearest Neighbor Contingency Tables
Flowering, sex ratios, pollen-ovule ratios, fruit set, and reproductive effort of a dioecious tree, Myristica Insipida (Myristicacea ), in two different rain forest communities.
New Tests of Spatial Segregation Based on Nearest Neighbor Contingency Tables
Flowering, sex ratios, pollen-ovule ratios, fruit set, and reproductive effort of a dioecious tree, Myristica Insipida (Myristicacea ), in two different rain forest communities.
Class-Specific Tests of Spatial Segregation Based on Nearest Neighbor Contingency Tables
Almost anyone who has ever looked through a microscope at a drop of water has been intrigued by the seemingly erratic and unpredictable movement of small particles suspended in the water, e.g. dust or pollen particles.
Deterministic Brownian Motion: The Effects of Perturbing a Dynamical System by a Chaotic Semi-Dynamical System
Any set of points on the unit sphere is called a spherical code, and the problem of finding the best code has been proposed many times and in many contexts (though usually only in three dimensions), from packing circles on a sphere to distributing orifices on pollen-grains (e.g., ).
Finding and investigating exact spherical codes
On the origin of number and arrangement of places to exit on the surface of pollen grains.
Finding and investigating exact spherical codes
The prototypical example is behaviour of molecular origin—the Brownian motion of a pollen particle on a water surface.
An introduction to SDE simulation
Consider the equation of motion of a pollen particle suspended in a fluid flow.
An introduction to SDE simulation
***