The Algae ClipArt gallery offers 120 images of these eukaryotic organisms that lack many organs found in land plants. The most known and largest examples are seaweeds.
"A genus compound radiolarians, typical of the family Sphaerozoidae, the protoplasm of which contains…
"An order of the class Infusoria, the adult members of which have no cilia and no proper mouth, and…
Magnified view of some of a simple fresh water Alga, the Tetraspora lubrica, each sphere of which may…
"A division of thallogenous chlorophyllous cryptograms found in the most part in the sea or in freshwater."-Whitney,…
"a genus of algae. P.nivalis (red-snow) appears on the surface of snow, tinging extensive tracts in…
An animal that lives in stagnant water. It is so small that it can only be seen with a microscope.
"Fucus platycarpus...3. jointed branching hairs detached from the sides of the conceptacle and bearing…
Bryopsis plumosa; apex of a stem with its branchlets; all the extension of one cell.
They grow in pools and slow streams rooting in the ground and growing erect. Some species when taken…
Outlines of a portion of the stem in section, showing the central cell and the outer or cortical cells.
"1. Antherid and spore-case of Chara fragilis not much magnified; 2. the same at a later period, after…
Chara vulgaris, a modern lime-secreting alga, growing in fresh water. An important marl and limestone…
Chara vulgaris, a recent calcareous alga (fresh water); sport-vessel with corona. This is frequently…
This illustration shows the features in the life history of Chlamydomonas: A, character of the motile…
"B, cell of Spirogyra, with spiral chloroplast at c, nucleus at n, and pyrenoid at e." -Stevens, 1916
"C, cross section of Spirogyra cell, with nucleus at n, and section of chloroplast and pyrenoid below."…
Small plant of Chondrus crispus, Carrageen Moss; the spots represent the fructification, consisting…
A mass of coccoliths; a marine pelagic plant of low order covered with calcereous plates. A coccolithophore…
The growing end of a branching Conferva (Cladophora glomerata), showing how, by a kind of budding growth,…
Coralline Rock is a type of rock formed by the death of layers of Coralline algae. It is visually quite…
A piece of the rose-red Delesseria Lepreiurei, showing that it is composed of a layer of cells.
A piece of the rose-red Delesseria Lepreiurei, showing the cells are gelatinous and thick-walled.
Section through a conceptacle of Delesseria Leprieurei, showing the spores, which are single specialized…
Closterium acutum, a common Desmid. It is a single firm-walled cell, filled with green protoplasmic…
A major group of eukaryotic algae, one of the most common type of phytoplankton. Most diatoms are unicelular,…
These protozoans form colonies. Formation of the two kinds of reproductive cells of Eudorina.
"Eudorina. The development of reproductive bodies within the colony from the ordinary vegetative cells…
Magnified section through a fertile conceptacle of Rockweed, showing the large spores in the midst of…
Flagellata is an order of Protozoa characterized by the presence of flagellae (whip-like structures…
Foraminifera are minute shelled animalcules. They secrete a hard covering or shell made of sand or carbonate…
Foraminifera are minute shelled animalcules. They secrete a hard covering or shell made of sand or carbonate…
Foraminifera are minute shelled animalcules. They secrete a hard covering or shell made of sand or carbonate…
Foraminifera are minute shelled animalcules. They secrete a hard covering or shell made of sand or carbonate…
Foraminifera are minute shelled animalcules. They secrete a hard covering or shell made of sand or carbonate…
The Foraminifera, ("Hole Bearers") or forams for short, are a large group of amoeboid protists…
"Fucus vesiculosus: showing the receptacles of the fructification a, a, at the ends of the branching…
This illustration shows the colonial forms of unicellular green algae: A, Pediastrum, the plants of…
Gregarina is a parasitic protozoan. They live in the alimentary canal of crayfish, and certain insects.
"Branch of Gulfweed (Sargassum bacciferum). a, vesicle with leaf; b, mucronate vesicle." -Whitney, 1911