Jimmy, a long time ago, the split between "English" and whatever the other types of the time might be was more along the lines of Category X being tobaccos that had no added toppings of flavors, and category Y being tobaccos that did (ie, what we call aromatics, known in that parlance as Danish). So tobacconists catalogs of old had straight virginia, for example, listed as "English". Your "traditional of England" might have at some point reflected this.
Nowadays, most people will call something "English" or and "English Mixture" if it is a mixture predominantly of Virginia and Latakia, often with an oriental component, sometimes with a perique component, or other "condimental" tobacco (Basma in the case of Old Dubln, for example). So McClelland British Woods is an English, manufactured in America. Astley's Royal Tudor is an English manufactured in Germany. "English in Pedigree"?
To answer your question about perique, I don't find that perique leaves much in the way of funny tastes in my pipe, and I would not hesitate to smoke straight virginias and va/pers out of the same pipe.