Algae of genus Nostoc (cyanobacteria) cover a waterhole of freshwater. An alder dried leaf lies on the gelatinous green pellicle

---

Nostoc is a genus of blue-green algae (cyanobacteria). The cyanobacteria of this kind occurring in moist places and often form jellylike colonies. In this photo you can see well the filaments and gelatinous little balls.

---

Size: 3872px × 2592px
Location: province of Viterbo, Latium, Italy, Europe
Photo credit: © edo loi / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: abstract, algae, art, biology, blue, chlorophyll, close, close-, closeup, colonies, colony, cyanobacteria, cyanobacterium, damp, dampness, dank, dried, dry, filaments, freshwater, gelatinous, green, hole, horizontal, humid, humidity, jellylike, leaf, leaves, macro, membrane, microbiology, moist, moistness, moisture, nature, nostoc, organisms, pellicle, photosynthetic, pigment, puddle, substance, water, water-hole, waterhole, wet, wetness