Complex sentence: In addition to revising the existing nomenclature, George published a number of new species and subspecies, including a new variety of "B. integrifolia", "B. i." var. "aquilonia".
Split into simpler sentences: In addition to revising the existing nomenclature, George published a number of new species and subspecies. Among them was a new variety of "B. integrifolia", "B. i." var. "aquilonia".