Anita Martin Equestrian Center Plant Walk / 34NostocIMG_3636 Lead by Jim Varnum & Jeff Quayle 5/1/2010 Click on small picture to see larger view and full info. Up arrow returns to index

Nostoc (cyanobacteria) When dry forms a brittle sheet of black; when wet swells to a bluegreen gel. Fixes nitrogen from air so plants can use it.