Taxonomia

• Lineage:
• Root
/
• Plantae
/
• Chlorophyta
/
• Zygnematophyceae
/
• Zygnematales
/
• Desmidiaceae
/
• Cosmarium
/
• Cosmarium excavatum

Cosmarium excavatum (species)

• varietyDuplo-maius
• formDuplo-major