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22 phormidium species
Phormidium favosum
Phormidium corium
Phormidium inundatum
Phormidium submembranaceum
Phormidium subuliforme
Phormidium subfuscum
Phormidium autumnale
Phormidium tenue
Phormidium chalybeum
Phormidium formosum
Phormidium nigroviride
Phormidium breve
Phormidium irriguum
Phormidium retzii
Phormidium papyraceum
Phormidium incrustatum
Phormidium ambiguum
Phormidium luridum
Phormidium tergestinum
Phormidium puteale
Phormidium setchellianum
Phormidium minnesotense
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