(Plectonema) (Plectonema) is a biological genus in the family Scytonemataceae and order Nostocales.
Plectonema battersii
Plectonema boryanum
Plectonema calothrichoides
Plectonema carneum
Plectonema golenkinianum
Plectonema nostocorum
Plectonema notatum
Plectonema phormidioides
Plectonema purpureum
Plectonema terebrans
Plectonema tomasinianum
Plectonema wollei
Coleodesmium
Diplocolon
Plectonema
Pseudophormidium
Scytonema
Tolypothrix