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Taxonomy
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Bacteria
Cyanobacteria
Cyanophyceae
Nostocales
Scytonemataceae
Petalonema
Petalonema alatum
Petalonema crustaceum
Petalonema velutinum
Scytonema
Chromista
Plantae
Protozoa
Petalonema
Berk. ex Correns
Description
Subordinate taxa
Illustration
Taxon name
Petalonema alatum
Petalonema crustaceum
Petalonema velutinum