Yard Mushrooms

Fairy Ring Mushroom aka Marasmius oreades.
These mushrooms were growing in amongst the lawn grass in a form of an arc of about 4.5' in diameter.  The smallest cap was about 5/8" wile the largest was 1 5/8". 
Here are the smallest.

A pair that are older older.

Top of the oldest - 1 5/8" cap.

Gills on the old one, shown above.

Top of another.

Gills on the one above.


Stem of the largest.

Spore print was white.  Spore measured 7.7 x 5.8 microns

A group of common puffballs.

This one looked different.  It had dimples like a golf ball.  All were very young and pure white on the inside.