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| Kingdom Bacteria | 
|  | Calothrix C. Agardh ex Bornet & Flahault – valid | 
|  | Calothrix confervicola C. Agardh ex Bornet & Flahault – valid | 
|  | Calothrix confervicola var. confervicola C. Agardh ex Bornet & Flahault – valid | 
|  | Calothrix fasciculata C. Agardh ex Bornet & Flahault – valid | 
|  | Calothrix pulvinata C. Agardh ex Bornet & Flahault – valid | 
|  | Calothrix scopulorum C. Agardh ex Bornet & Flahault – valid | 
|  | Nostoc carneum C. Agardh ex Bornet & Flahault – valid | 
|  | Nostoc carneum f. carneum C. Agardh ex Bornet & Flahault – valid | 
|  | Nostoc muscorum C. Agardh ex Bornet & Flahault – invalid | 
|  | Nostoc pruniforme C. Agardh ex Bornet & Flahault – valid | 
|  | Nostoc spongiaeforme C. Agardh ex Bornet & Flahault – invalid | 
|  | Rivularia C. Agardh ex Bornet & Flahault – valid | 
|  | Rivularia haematites C. Agardh ex Bornet & Flahault – valid | 
|  | Rivularia nitida C. Agardh ex Bornet & Flahault – valid | 
|  | Scytonema C. Agardh ex Bornet & Flahault – valid | 
|  | Scytonema figuratum C. Agardh ex Bornet & Flahault – valid | 
|  | Scytonema hoffmannii C. Agardh ex Bornet & Flahault – valid | 
|  | Scytonema hoffmannii f. hoffmannii C. Agardh ex Bornet & Flahault – valid | 
|  | Scytonema hoffmannii var. hoffmannii C. Agardh ex Bornet & Flahault – valid | 
|  | Scytonema hofmannii C. Agardh ex Bornet & Flahault – invalid | 
|  | Scytonema myochrous C. Agardh ex Bornet & Flahault – valid | 
|  | Stigonema C. Agardh ex Bornet & Flahault – valid | 
|  | Stigonema mamillosum C. Agardh ex Bornet & Flahault – valid | 
|  | Stigonema mamillosum var. mamillosum C. Agardh ex Bornet & Flahault – valid | 
        
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