But if you go down to a dry dock and look at the hull of a ship which has come in to be cleaned and scraped, you will see that it is entirely covered by seaweeds and shells.
The names of these seaweeds are many thousand times longer than the algae themselves, and it is not really necessary to give them.
More remarkable still, perhaps, are those seaweeds which grow upon rocks, often where the full strength of the waves beats upon them.
Thus there are certain green seaweeds or algae which are said to attack and prey upon those peculiar sea-urchins known as Brittle Stars.
The original algae or seaweeds probably had descendants which migrated to the land and eventually after many geological periods became our flowering plants and ferns.
Those seaweeds were called by Horace Algae inutiles, or useless seaweeds; but are they useless?
But yet the strength of theseseaweeds is extraordinary, and, indeed, almost incredible.
Amongst others there is the fact that certainseaweeds or algae are found luxuriating in the hot water.
That ship has been driven through the water perhaps at ten miles an hour or more, and yet those delicate-looking seaweeds have held on!
Where deep water comes close to cliffs there may be no shore at all; in other places the relatively shallow water, with seaweeds growing over the bottom, may extend outwards for miles.
It may be noted that the green seaweeds are highest up on the shore; the brown ones come next; the beautiful red ones are lowest.
During the Ordovician there were seaweeds of the more familiar branching types without carbonate of lime supports, and these have left very perfect impressions in some of the Ordovician strata.
During the Silurian period seaweeds continued, as, in fact, they did throughout succeeding geologic time to the present.
And as he spoke, a huge furious wave swept down the whole length of the gulf by which they stood, roaring and surging along till the whole water seethed, and tearing the seaweeds from their roots in the rock.
It is curious that the red seaweeds should have very similar contrivances for capturing and retaining the male cells.
Before we study any of these interesting plants under the microscope, it will be useful to learn a little about seaweeds in general, because they are so totally unlike land plants in every respect.
The methods of increase amongst the red seaweeds are rather more complicated and as our object is to interest and not to puzzle our readers we will content ourselves with a few general remarks.
As we study our seaweeds on the shore, if we are really observant, we shall notice that they live in zones or belts according to their colour.
There is no class of plants more interesting than the seaweeds and in few branches of plant life is there greater scope for new discoveries.
Frequently red seaweeds may be found above high-water mark it is true, but in such cases they nearly always occur in rock pools and they are invariably sheltered by brown seaweeds.
So we see that, although all seaweeds are Algæ, not all Algæ are seaweeds.
These brown seaweeds often attain enormous sizes, they all grow below the limits of low tide and appear to thrive best where the water is frequently lashed by storms.
The spores of seaweeds also are small, but they are very different to the little wind-blown, land-dwelling spores.
We may well begin our study of the seaweeds with an examination of the external structure of as many different kinds as we can find.
But this morning the beach was untidy with great masses of fresh kelp and seaweeds from the deep, torn by the storm and scattered everywhere.
You put your seaweeds in a basin of cold fresh water, and all the molluscs instantly let go and fall to the bottom.
Seaweeds grow profusely on Gairloch shores; they are largely used as manure, and were formerly the source whence kelp was obtained.
In particular, it was obvious that innumerable molluscs of the smaller, and therefore less-known species, found shelter and food among the seaweeds that densely clothed the rocks.
That no more were found among the seaweeds examined, is simply due to the circumstance that all the samples were taken from the same kind of ground.
The fish and mollusca which gnaw the stems of the seaweeds no doubt contribute also to detach them from their roots.
We passed a little square carpeted with fresh grass, but the trees on the other side were vague in mist, and the square and its vegetation gave the suggestion of a tank with seaweeds in it.
In that stagnant air they remind one of the giant seaweeds that grow in the depths of the great oceans where the water never moves; and the silence there is the silence of ocean depths, and so has been from the beginning.
A genus of great seaweedswith long and broad fronds; kelp, or devil's apron.
Pertaining to seaweeds of the genus Laminaria, or to that zone of the sea (from two to ten fathoms in depth) where the seaweeds of this genus grow.
Her mother had shown her how to make seaweeds and shells into baskets, and many of these amateur productions adorned the walls of Nora's bedroom.
She had been visiting her favorite haunts by the seashore, and was returning laden withseaweeds and shells, when she was startled by hearing her name spoken in a low tone just behind her.
The exquisite red seaweeds are as graceful in form and vivid in color as many flowers.
Specimens of this genus are found to have several anatomical characters common to the big living seaweeds of the Laminaria type, and it is very possible that the fossils represent an early member of that group.
Seaweeds are not absent from the Arctic Ocean, although its shores, owing to the destructive action of ice, usually seem exceedingly barren, and the lower or smaller forms of algae float in the waters in abundance.
With the exception of the Fuci or common rock-weeds, I never place seaweeds in fresh water: with these, especially Fucus serratus, F.
Olive, who had finished putting herseaweeds to press; "for as yet I have only read about such a nest.
Some were flying, others walking about on the sand, where there were many tufts of grass and mats of seaweeds that looked as if they had been used for nests.
When Olaf went out, he had to push his boat ever so far, and now the water is almost up to the line of seaweeds and shells.
Perhaps I should not promise more than the brown Tangle and the green Ulva, with its bright lettuce-like leaves; for red seaweeds belong to deep water, and are not easy to find.
In color and form these mollusks closely imitate the fronds of sargassum and other floating seaweeds among which they live.
Thera is no reason why they should not be shallow, exposed to light and air, and cultivated as rock-pools by the introduction of seaweeds and small animals, but they must then be screened from rain, cold and dust.
The great mane of hair which enveloped her was, as I have said, tawny in hue, and almost translucent, like the stems of some seaweeds I have seen.
Around many of them grew clusters of strange and colorful seaweeds that waved their banners gently, as though some imperceptible current dallied with them in passing.
I like the room when all Papa's books and papers are about, and when he is scribbling away so busy, and when Mamma has got her microscope out looking at seaweeds or curiosities.
Sister, I hope you will do no such thing," murmured a young Fairy who lay near twining seaweeds into a wreath.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "seaweeds" in a variety of sentences. We hope that you will now be able to make sentences using this word.
