Note 3014 — BOOK XVII. THE NATURAL HISTORY OF THE CULTIVATED TREES.
John Bostock translation
An unnecessary precaution. It is not the situation of the branches so much as the nature of the soil, traversed by the roots, corresponding to them, that would be likely to have an influence on the graft. There is little doubt that Pliny borrowed the present passage from Columella, De Re Rust. v. 11; and De Arbor. 20.