Which one is not found in Agaricus?

A. pilus

B. mycelium

C. stipe

D. ascospore

Dear student 

Agaricus is a genus of mushrooms containing both edible and poisonous species, with possibly over 300 members worldwide. The genus includes the common ("button") mushroom (Agaricus bisporus) and the field mushroom (Agaricus campestris), the dominant cultivated mushrooms of the West.

Pilus is not found in Agaricus 

So, A is the correct option 

Good luck 

Cheers