Cool pollen, though.

A different pollen signature, if you like, or a different pollen fingerprint.

It's heeeeeeere... the pollen!!!

That's a geranium pollen.

Bee pollen, pollen collected from bees, is considered a health food by some people.

The stigma receives pollen and it is on the stigma that the pollen grain germinates.

Tracking the 'Cedar Pollen Front'

They get paid by pollen and nectar, to move that male sperm, the pollen, from flower to flower.

The Annual Japanese Agony of Cedar Pollen

But pollen forensics can be very subtle.

Perhaps there's more pollen in the city.

Jonathan Drori Every pollen grain has a story

So they make nectar as well as pollen.

Pollen is produced by the anthers of flowers.

But anyway, take a look at its pollen.

Now, pollen from plants, which are wind dispersed

The fossilized pollen was not of savanna vegetation.

They build up a static electric charge and the pollen jumps on them and helps spread that pollen from bloom to bloom.

A cedar tree releases clouds of allergy inducing pollen.

And of course, they're made to carry this pollen.

Pollen is a flower's way of making more flowers.

So, that's 20 micrometers across, that pollen grain there.

But not all pollen is quite so simple looking.

Like I said, pollen carries the male sex cells.

First of all, pollen is tiny. Yes we know that.

The pollen has little barbs on it, if we look.

That tells me that it's actually been fossilized, this pollen.

With the trains coming in to urban hubs, they can carry pollen with them, very light pollen, and it's just a big supermarket in the city.

These are little bits of individual grain of pollen there and there, and here is a what you see as one little yellow dot of pollen, when you look in a microscope, it's actually made of thousands of little grains of pollen.

These are little bits of individual grain of pollen there and there, and here is a what you see as one little yellow dot of pollen, when you look in a microscope, it's actually made of thousands of little grains of pollen.

Here is a scanning electron micrograph of a grain of pollen.

Now the way that plants transmit that information is through pollen.

Members of the group have tricolpate pollen, or forms derived from it.

That means they can't the pollen in their bloom can't fertilize themselves.

My story is actually not about plant propagation, but about pollen itself.

like him that has managed to bring out the best in pollen.

Now, much of the pollen will still be there after repeated washings.

And the reason for that is they've got to chuck out masses and masses of pollen to have any chance of the pollen reaching another plant of the same species.

Hyposensitization treatments, where patients are given small doses of pollen extracts via injection or drops into their mouth to help prevent the body from overreacting to pollen, are also increasingly popular.

Pollen is tiny. It gets on to things, and it sticks to them.

This helps pollen jump from the flower onto the bee like electric velcro

The plant gets something, and the hawk moth spreads the pollen somewhere else.

And the plant showers them with pollen, and off they go and pollinate.

That little hole in the middle there is for the pollen tube, and when the pollen finds its special female spot in another Morina flower, just on the right species, what happens?

That little hole in the middle there is for the pollen tube, and when the pollen finds its special female spot in another Morina flower, just on the right species, what happens?