Diatom, SEM

Licmorpha freshwater diatom, SEM

Diatom, SEM

Diatom, SEM

Diatom alga, SEM

Diatom alga, SEM

Rhabdonema marine diatom, SEM

Cyanobacteria, SEM

Diatom, SEM

Diatom, SEM

Fossil debris in chalk, SEM

Fossil debris in chalk, SEM

Diatom, coloured scanning electron micrograph (SEM). The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x3250 when printed at 10 centimetres wide.

Diatom, coloured scanning electron micrograph (SEM). The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x3250 when printed at 10 centimetres wide.

Diatom. Coloured scanning electron micrograph (SEM) of a Triceratium sp. diatom. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x800 when printed at 10 centimetres wide.

Diatom. Coloured scanning electron micrograph (SEM) of a Eupodiscus sculptus diatom. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x800 when printed at 10 centimetres wide.

Diatom. Coloured scanning electron micrograph (SEM) of a Rutilaria epsilon diatom. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x1000 when printed at 10 centimetres wide.

Coloured scanning electron micrograph (SEM) of salt water pennate diatom frustule (Navicula sp. ). The genus Navicula is a genus of boat-shaped, single cell, photosynthetic alga. It is a pennate diatom that has a silica skeleton (frustule). These...

Coloured scanning electron micrograph (SEM) of salt water pennate diatom frustule (Navicula sp. ). The genus Navicula is a genus of boat-shaped, single cell, photosynthetic alga. It is a pennate diatom that has a silica skeleton (frustule). These...

Diatom. Coloured scanning electron micrograph (SEM) of part of the cell wall, or frustule, of a Amphora sp. diatom. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x5000 when printed at 10 ce

Diatom. Coloured scanning electron micrograph (SEM) of part of the cell wall, or frustule, of a Amphora sp. diatom. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species. Magnification: x5000 when printed at 10 ce

Fossil debris in chalk. Coloured scanning electron micrograph (SEM) of a fossilised fragment of a coccolithotrope skeleton.

Scanning electron micrograph showing a diatom found in an untreated water specimen extracted from a wild stream. Magnification 6500x

Coloured scanning electron micrograph (SEM) of centric fossil diatom frustule. This fresh water diatom frustule came from deposits found at Kalamath Falls, Oregon. This freshwater centric diatom is found in fresh water streams, ponds and lakes....

Diatom alga, SEM