baggy, when I was a child in Scotland, a morning roll was one that was dusted with flour and a bap was a flatter and rounder roll, more like a barm, but a bit smaller. A pan loaf was just that and someone with a 'pan loaf accent' was a bit posher than average. A plain loaf had black crusts top and bottom and no crusts anywhere else. I thought these were tastier than the pan loaves.
And while we're at it, what about pikelets and crumpets? A Scottish crumpet was, in my youth, a large, flat, pancake-like cake, holey on top and smooth underneath, which you spread with butter and jam and then rolled up to eat it. I could also mention cookies which were shiny, sweet buns which were spread with butter and jam, and cream cookies which were the same, but split with cream inserted, or, more likely, mock cream. Such were the tea-time treats when we went to stay with granny.