Click here for images of Saccharomyces.
Saccharomyces cerevisiae Meyen ex E.C. Hansen. Engl.: beer yeast. Deu.: Bierhefe. Suom.: oluthiiva.
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.