Gallionella ferrugineaand-iron bacterium
Collected in the red flocculate that it made in the creek outside Alum Cave.
Photograph by Eleanor Robbins, U.S. Geological Survey.
Copyright Eleanor Robbins
Photograph by Eleanor Robbins, U.S. Geological Survey.
Copyright Eleanor Robbins
| Discover Life in America | Flora & Fauna | Natural History Information | Bacteria | Photograph |