std::vector<TreeWillOWisp*>::iterator iter;
for(iter = willowisps.begin(); iter != willowisps.end(); ++iter) {
TreeWillOWisp *willo = *iter;
std::vector<TreeWillOWisp*>::iterator iter;
for(iter = willowisps.begin(); iter != willowisps.end(); ++iter) {
TreeWillOWisp *willo = *iter;