Nature Photos

Image 1. Free-living green algae on the trunk of an apple tree in California

Image 2. Algae along the edges of a slow-moving stream in California's Sierra Nevada.
Sometimes this sort of algae is called "pond scum".

Image 3. Green algae on a brick wall

Image 4. Wet algae on a cliff face above a beach near Mendocino, CA

Image 5. Algae on a cliff face above a beach near Mendocino, CA

Image 6. Wet algae on a cliff face above a beach near Mendocino, CA

Image 7. The algae, a species of Trentepohlia is growing on a pine tree or cypress at Point Lobos,
Monterey County, California. This algae is also found as the algal partner in many species of lichens.
The light gray lichen in the photo is Dendrographa leucophaea.

Image 8. Trentepohlia sp., growing on a pine tree or cypress at Point Lobos, Monterey County, CA

Image 9. Trentepohlia sp., growing on a pine tree or cypress at Point Lobos, Monterey County, CA

Image 10. Trentepohlia sp., growing on a pine tree or cypress at Point Lobos, Monterey County, CA

Image 11. Trentepohlia sp., growing on a brick wall in San Francisco

Image 12. This is probably algae, or perhaps the cyanobacterium Nostoc, in a stream
in the alpine Sierra Nevada, California

Image 13. A microscopic view of cells of algae in the genus Cylindrospermum.
Photo by Victor Duran

Image 14. A microscopic view of cells of algae, probably in the genus Pediastrum.
Photo by Victor Duran

Image 15. A microscopic view of cells of algae in the genus Spirogyra.
Photo by Victor Duran

Image 16. A microscopic view of cells of algae in the water of a fish pond.
Photo by Victor Duran

Image 17. A microscopic view of cells of algae in the water of a fish pond.
Photo by Victor Duran

Image 18. A microscopic view of cells of algae in the water of a fish pond.
Photo by Victor Duran