Life On A Quarter Acre

Haematococcus lacustris

About
Observations
Taxonomy

Haematococcus lacustris is a green algae that is often found in birdbaths. And that is where I found it here.

It exists in several forms, depending on the conditions. It is green when conditions are good, and red cysts when conditions are bad.

Here's a nice video about them from Microcosmos.