Sentence:  ... as the head of a beast is to be placed only upon its shoulders, so neither is a plant, however <WSD>abstractedly</WSD> treated, to be placed root uppermost ... 
Meaning of the word marked with <WSD> tags:  In an abstracted manner; separately; in the abstract. (First attested in the early 17th century.)<ref name=SOED>(page=10)</ref>