Microorganisms, light micrograph
Ophrydium protozoa, light micrograph
Cyanobacteria and diatom, LM
Cyanobacteria filaments, LM
Cyanobacteria and diatoms, light micrograph
Chroococcus cyanobakteria, LM
Vaginicola ciliate on cyanobacteria, light micrograph
Navicula diatoms, light micrograph
Pennate diatoms, LM
Microbial sphere, SEM
Leptogium lichen section, LM
Phormidium sp. algae, light micrograph
Anabena sp., LM
Nostoc sp., LM
Scytonema sp., LM
Rivularia cyanobacteria, light micrograph
Rivularia cyanobacteria colony, light micrograph
Filamentous cyanobacteria, light micrograph
Cyanobacteria, polarised light micrograph
Spirulina cyanobacteria, light micrograph
Phormidium sp. cyanobacteria, light micrograph
Heliozoan and Sirgonium, light micrograph
Gyrosigma diatom, Mayorella amoeba, LM
Thecamoeba amoeba, LM
Pond life, light micrograph
Lobaria lichen section, LM
Nitzschia sp. diatom and red algae, light micrograph
Aphanothece sp. cyanobacteria, LM
Hammered shield lichen, SEM
Rosette lichen, SEM
Diatoms, SEM
Cup lichen, SEM
Common orange lichen, SEM
Trumpet lichen, SEM
Bearded lichen, SEM
Lichen, Cladonia sp., SEM
Hammered shield lichen,SEM
Jelly lichen, SEM
Lichen, Xanthoria flammea, SEM
Scytonema hyalinum cyanobacteria, light micrograph
Trithigmostoma ciliate, LM
SEM of diatoms and blue-green algae
Nostoc pruniforme cyanobacteria, LM
Hypotrich ciliate, light micrograph
Algae, light micrograph
Heliozoans on green alga, light micrograph
Macrophage attacking a foreign body, SEM
Red algae and diatoms, light micrograph
Suctorian ciliate, light micrograph
Diatoms, light micrograph
Golden algae, light micrograph
Cyanobacteria, light micrograph
Nostoc cyanobacteria, LM
Stentor ciliate and diatoms, light micrograph
Stentor sp. ciliate and diatoms, light micrograph
Synedra sp. diatoms, light micrograph
Cymbella sp. diatoms, light micrograph
Gomphonema sp. diatoms and green alga, light micrograph
Lichen, Caloplaca saxicola, SEM
Tree lichen, SEM
Rivularia cyanobacteria and diatom, light micrograph
Synedra diatom group, LM
Diatoma diatom, LM
Cymbella sp. Diatoms, LM
Stephanodiscus diatom, LM
Cymbella Diatoms, LM
Asterionella diatoms, LM
Achnanthes sp. algae, light micrograph
Tabellaria sp. algae, light micrograph
Odontella sp. algae, light micrograph
Coscinodiscus sp. diatom, LM
Rotifer, light micrograph
Lyngbya sp. algae, light micrograph
Nostoc sp. algae, light micrograph
Amoeba from shower drain, light micrograph
Diatoms and cyanobacteria, micrograph
Calothrix cyanobacterium, LM
Anabena cyanobacterium, LM
Tabellaria freshwater diatoms, LM
Odontella sp. diatom, LM
Gyrosigma freshwater diatoms, LM
Melosira sp. diatoms, LM
Nassula protozoan, light micrograph
Diatoms on red algae, light micrograph
Diaphoropodon amoeba, LM
Deuteramoeba amoeba, LM
Amoeba, light micrograph
Anabaena cyanobacteria, light micrograph
Microalgae, light micrograph
Desmids, light micrograph
Rotifer and green algae, light micrograph
Algae and protist, light micrograph
Iodamoeba buetschlii parasitic cyst
Bursaria protozoan, light micrograph
Lichen, Lecanora crenulata, SEM
Merismopedia, SEM
Actinosphaerium heliozoan, light micrograph
Thalassiosira punctigera, light micrograph
Cymbella diatoms, light micrograph
Amoeba with Euglena and diatoms, light micrograph
Difflugia amoeba and sp. diatoms, light micrograph
Oscillatoria cyanobacteria, light micrograph
Stylonema sp. red alga filaments, LM
Compsopogon red alga, LM
Cryptomonas ovata alga, LM
Microthamnion sp. green alga, LM
Pediastrum dupley algae, LM