1) Of the woods 2) Sylvan 
Forestal is a solvent used in chromatography, composed of acetic acid, water, and hydrochloric acid in a 30:10:3 ratio by volume. It is useful for isolating anthocyanins in room-temperature chromatography using standard filter paper. ...
• (a.) Of or pertaining to forests; as, forestal rights.
For'est·al adjective Of or pertaining to forests; as, forestal rights.