Colorado Experiment Station 
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ish, brownish yellow, or tan, while the surface is frequently sprin¬ 
kled with glistening, mica-like particles that give this mushroom 
its name. These shining particles do not always appear on the caps, 
however. In young specimens the margin of the cap is at first 
slightly attached to the steam near the base and leaves an encircl¬ 
ing ridge where it breaks away. The stems are quite slender, 
smooth, white, with a narrow hollow and are easily broken. The 
