To which group of organisms does the given figure belong?

There is a myth that immediately after heavy rains in forests, mushrooms appear in large numbers and form a very large ring or circle, which may be several metres in diameter. These are called as "fairy rings". Can you explain this phenomenon of fairy rings in biological terms? Discuss the mycelial structure in $Agaricus$ and its soil-borne nature.

The term 'fungus' was coined by

Zygospores are formed in

With respect to the fungal sexual cycle,choose the correct sequence of events.

$A$ fungus contains cells with two nuclei from different genomes. The nuclei do not fuse but divide independently to form a dikaryotic secondary mycelium. The fungus belongs to