shroom patterns are varied
some grow in circles based on a single spore
some grow in circles based on where the mycelium from 2 spores meet
some grow in lines from either one spore or a meeting of the mycellium of 2 spores
some are associated with a tree root system or fire site or live or dead thing or other local micro environment
some have a huge mycelium and pop up fruiting bodies seemingly randomly
etc etc they are a very diverse and fascinating life form
for instance the magic ones i linked to above require 2 spores to send out mycelium threads which meet and combine ,they then grow in a linear manner .after a years growth the fruiting bodies will be found in groups along a line originating from the meeting point .the fruiting line can be short or up to 100m .
yet again, science is far more marvellous than magic (superstition). I actually found A Level Botany fascinating. I can understand how the study of fungi, at both the macroscopic and microscopic levels can become totally absorbing. Way back in the 60's, fungi were dumped into the botanic side of the Bot-Zoo divide, however, modern research shows that they are actually more closely related to animals than to plants.
Thanks for the biology lesson, I liked it!