Mat olive-green (unhealthy) to blue-green when grown in liquid medium. Vegetative cell width 3.4-4.6 um. Heterocytes 4.7-4.8 um. Arthrospores 6.5-7.7 um. Cells with granular cytoplasm. Thylakoid arranged randomly throughout cell. Originally found in wet soils in Europe but this morphotype was collected from desert soil and most likely belongs to different genotype.