Please be aware Model Local Rule F-14 is no longer in effect as of today. This rule was previously stated as the below...
During play of holes 1-9 any ground with significant accumulations of leaves in the general area or in a bunker is treated as ground under repair from which free relief is allowed under rule 16.1
A player may take free relief from a ball not found when it is “known or virtually certain” it came to rest in or on an “abnormal course condition.” If that’s the case, and you either saw the ball enter the leaves or are virtually certain it did, then you are entitled to a free drop by finding the nearest point of complete relief and dropping within one club-length, no closer to the hole.