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.
Oarweed or Tangle (Laminaria digitata) is a species of kelp common to the British Isles and Northeast…
Laminaria saccharina belongs to the group Laminariæ, a group of algæ belonging to the Phæosporeæ,…
Similar section of a sterile conceptacle, containing slender antheridia.
An illustration of the Noctiluca scintillans. Noctiluca scintillans, also published as Noctiluca miliaris,…
An illustration of the aboral side view of the Noctiluca scintillans. Noctiluca scintillans, also published…
An illustration of the lateral view of the Noctiluca scintillans. Noctiluca scintillans, also published…
An illustration of the first stage of fission in the Noctiluca scintillans. Noctiluca scintillans, also…
An illustration of the second stage of fission in the Noctiluca scintillans. Noctiluca scintillans,…
An illustration of the young stages of Noctiluca scintillans. Noctiluca scintillans, also published…
An illustration of the young stages of Noctiluca scintillans. Noctiluca scintillans, also published…
An illustration of Noticulales with buds. The Noctilucales are a peculiar order of marine dinoflagellates.…
An illustration of Noticulales in section: an, anus; d, denticle; f, flagellum; t, tentacle. The Noctilucales…
The Noctilucales are a peculiar order of marine dinoflagellates. They differ from most others in that…
This illustration shows the features in the life history of Pandorina: A, a colony of plants. B, each…
Pandorina, a one-celled, fresh water form, is a genus of green algae composed of 8, 16, or sometimes…
The paramecium is a one-celled ciliate in the Kingdom Protista. These two are separating after conjugation.
Paramecium are one-celled organisms in the Protista kingdom. They are slipper-shaped, nearly transparent…
Paramecium are one-celled organisms in the Protista kingdom. They are slipper-shaped, nearly transparent…
Paramecium are one-celled organisms in the Protista kingdom. They are slipper-shaped, nearly transparent…
Polycystina are microscopic in size and possess a structureless sarcode-body, enclosed in a perforated…
Polycystina are microscopic in size and possess a structureless sarcode-body, enclosed in a perforated…
"Hydra viridis, the freshwater polyp. The animal is attached to the stem of a plant, and is represented…
A genus of single-celled algae often forming a yellowish-green stratum on trees' damp walls, and in…
"Grinnellia Americana. a, structure of the leaf; b, vertical section of a conceptacle, showing the chains…
When coccoliths are covered with rods, they are called rhabdoliths, and form a rhabdosphere.
Known as rockweed or bladder wrack, this species of seaweed is in the Fucaceae family of brown algae.…
"Transverse section of conceptacle of a rockweed (Fucus platycarpus). h, hairs; a, antheridia; o, oogonia."…
Sertularia are members of the Protista kingdom. It is an example of another group of the hyroid zoophytes,…
Sertularia are members of the Protista kingdom. It is an example of another group of the hyroid zoophytes,…
Sertularia are members of the Protista kingdom. This is an example of the egg-producing gonophore.
This illustration shows the sexual reproduction of Spirogyra: A, in lower portion of figure formation…
"1. Chara vulgaris; 2. a portion of a branch with a nucule and globule; 3. the globule more magnified;…
Tubularia are members of the Protista kingdom. The pipe-coralline (Tubularia) is an example of another…
A Vaucheria; single cell grown on into a much-branched thread; the end of some branches enlarging, and…
These protozoans form colonies. The large spherical colonies of Volvox globator are composed of several…
These protozoans form colonies. The large spherical colonies of Volvox globator are composed of several…
Volvox is one of the best-known chlorophytes, a division of green algae, and is the most developed in…
Volvox is one of the best-known chlorophytes, a division of green algae, and is the most developed in…
Under certain circumstances some cells may store up food matters beome eggs, while others, known as…
Vorticella is a protozoan. Except for when young, it is usually found attached to dead leaves or sticks…
The vorticella is an interesting protozoan. It is found on submerged stems and leaves in stagnant water,…
Vorticella are members of the Protista kingdom. They are often found in stagnant pools, attached to…
Vorticella are members of the Protista kingdom. They are often found in stagnant pools, attached to…
Vorticella are members of the Protista kingdom. They are often found in stagnant pools, attached to…
This illustration shows two common forms of the Zygnematales: A, Spirogyra- n, nucleus; p, pyrenoid.…