Wood Decay Fungi by Christopher J Luley Ph.D. Trees coexist with heart rot until they are overtaken by it and fall down. Notice it stated some trees may be sound enough to be retained with periodic testing. Trees coexist with funji, inexorably, indefinitely, instilling immortality? I'm sorry sir, I've read plenty of your posts and respect your positions on most things, but what exactly does that mean? It does not seem to make much logical sense. Trees coexist with fungi for sure, not indefinitely, they all succumb to it eventually, as they are not immortal.