There is no such distinction. All citizens are statutory citizens, since they are citizens according to the applicable citizenship statutes.
You are either a natural born citizen or a naturalized citizen. That is the only distinction under the Constitution. If you are automatically a citizen at birth under the applicable citizenship statutes then you are a natural born citizen. If not, then you have to become naturalized to be a citizen.
WOW! Haven't you contradicted yourself in the space of two sentences?
Just what "statutes", specifically, apply to natural born citizen?