Public domain photos

The image shows a close up of a piece of rock with a small amount of dirt on it, which appears to be a photo of mucor. The rock is white and cream in color, and there is something written on the top and bottom of the image.

The image shows a close up of a piece of rock with a small amount of dirt on it, which appears to be a photo of mucor. The rock is white and cream in color, and there is something written on the top and bottom of the image.Open in library