[maximara]

Originally Posted by David Johnston2

That's why I said "interpretation". He was clearly just deleting every spell that didn't already restrict itself to "wood".

Granted there are places where the wording in Thaumatology is less then stellar ("Limited Magery 0" with regards to enchantments and limitations is so badly written as to imply the opposite of what the examples show) but this is one time I didn't see it at first.

A better wording might have been:

"Defining a completely new Wood college is unnecessary. Simply use the Plant college modifying or deleting any spells that don’t fit the setting’s metaphysics."