Friday, August 20, 2010
I noticed a fairy ring just outside the Arboretum entrance this morning and stopped to photograph it
Fairy rings are cool. They form as fungal mycelium seeking new nutrients grows outward from some central point, I'm sure a dead street tree in this case, .Since the growth is more or less equal in all directions, the ultimate shape is circular. Mushrooms are the fruiting bodies of the fungus and they form at the periphery of the mycelial ring. Every year the circle is larger; I've heard of rings more than 20 feet in diameter. There was a "fairy arc" of false morels in China Valley in 2001 but I didn't see it this year.
Posted by ChrisU at 3:38 PM