Microbial sphere, SEM
Diatoms, SEM
SEM of diatoms and blue-green algae
Microorganisms, light micrograph
Diatom alga, SEM
Cyanobacteria and diatom, LM
Cyanobacteria filaments, LM
Diatom algae, SEM
Diatom, SEM
Colonial diatom, SEM
Licmophora diatom alga, SEM
Marine diatom alga, SEM
SEM of blue-green algae
Algae in soil, SEM
Cup lichen, SEM
Common orange lichen, SEM
Trumpet lichen, SEM
Bearded lichen, SEM
Lichen, Cladonia sp., SEM
Jelly lichen, SEM
Lichen, Xanthoria flammea, SEM
Ophrydium protozoa, light micrograph
Navicula diatoms, light micrograph
Golden algae, light micrograph
Cyanobacteria and diatoms, light micrograph
Cyclotella marine diatom, SEM
Eupodiscus diatom, SEM
Actinoptychus diatom, SEM
Paralia diatom, SEM
Aulacoseira diatom, SEM
Triceratium diatom, SEM
Odontella diatom, SEM
Stromatolite, SEM
Hammered shield lichen,SEM
Oscillatoria sp. cyanobacteria, light micrograph
Lichen, Caloplaca saxicola, SEM
Hammered shield lichen, SEM
Tree lichen, SEM
Rosette lichen, SEM
Synechococcus cyanobacteria, SEM
Colonial diatom rhabdonema, SEM
Pond life, light micrograph
Chroococcus cyanobakteria, LM
Cymbella diatoms, light micrograph
Ditylium diatom, light micrograph
Ditylum brightwellii, algae, light micrograph
Cyanobacteria, polarised light micrograph
Spirulina cyanobacteria, light micrograph
Phormidium sp. cyanobacteria, light micrograph
Lyngbya sp. algae, light micrograph
Anabaena sp., algae, light micrograph
Spirulina meneghiniana cyanobacteria, light micrograph
Phormidium sp. algae, light micrograph
Rivularia cyanobacteria, light micrograph
Nostoc sp. algae, light micrograph
Cyanophyte, light micrograph
The surface environment of garden soil
Life on the surface of garden soil
Scenedesmus algae, SEM
Diatom frustules, SEM
Diatom frustule, SEM
Cyanobacteria, light micrograph
Diatoms and radiolaria, SEM
Diatom cell wall, SEM
Nostoc cyanobacteria, LM
Stigonema mammilosum cyanobacteria, light micrograph
Cyanocohniella crotaloides cyanobacteria, light micrograph