they are so amazing that they can discharge the spore by surface tension catapult. Sugar will secrete on the surface of the spore and absorb water moisture to form a Buller's drop. The Buller's drop with change the center of gravity of the spore.

This mushroom is also called the Shaggy Inkcap because the cap dissolves into an inky mess and drips away. The gills are densely packed and are parallel-sided, rather than with a V-shaped cross-section. This would seem to make effective spore dispersal very difficult. However, unlike the majority of mushrooms, the spores of Coprinus maturing in rising bands and the gills dissolving and dripping away below the bands of maturing spores. Each group of mature spores therefore has only a very short distance to fall, before being clear of the ever-diminishing cap. I wonder how Coprinus has evolved such different and effective solution to the problem of spore dispersal!

thanks for your additional information