It is found in a series of subgroups of MSS.
known as H r, J, I a, and others of less importance (about eleven subgroups are suggested).
The ultimate product in all cases is a number of carpospores, but before this stage is reached the development is different in different subgroups.
cyclic subgroups of prime power order.
irreducible subgroups of GL(n, q) arise in that way.