Taxonomia

• Lineage:
• Root
/
• Plantae
/
• Bacillariophyta
/
• Bacillariophyceae
/
• Bacillariales
/
• Bacillariaceae
/
• Nitzschia
/
• Nitzschia sigma

Nitzschia sigma (species)

• varietyAmoricana
• varietyAmphioxys
• formBrevior
• varietyDiminuta
• varietyFasciculata
• varietyFonticola
• varietyIntercedens
• varietyRigida
• varietyRigidula
• varietySigmatella