Coprinopsis psychromorbida

Coprinopsis psychromorbida or Cottony Snow Mold is a cause of snow mold. It is a basidiomycete, a psychrophile, and a plant pathogen.

Physiology
C. psychromorbida can thrive at least down to -5 C, optimally 5-10 C, and ceases growth at 25 C.

Hosts
Grows as a snow mold in wheat, rye, and other grasses (Poaceae) and can also cause storage rotting in apple and pear.