The disks in the cup are called " Peridioles"
The Peridioles appear to be disk shaped and 1.75 mm thick with a 0.5 mm diameter
If you look one the What is this Mushroom site - there are pictures from Lurrt
showing that they have the shape of little mushrooms
Scroll Down for more pictures
This shows the size of the peridioles
The marks on the ruler are in millimeters
This shows the side of the cup
This shows the diameter of the Peridioles
Note: marks on rules are in mm