Note 1133 — BOOK XIV. THE NATURAL HISTORY OF THE FRUIT TREES.
John Bostock translation
He alludes to the “vinea” used in besieging towns; the first notion of which was derived from the leafy roof afforded by the vines when creeping on the trellis over-head. It was a moveable machine, affording a roof under which the besiegers protected themselves against darts, stones, fire, and other missiles. Raw hides or wet cloths constituted the uppermost layer.