<i>Aerangis biloba</i> (syn. <i>Angraecum bilobum</i>). These were thought by growers to be parasitizing and killing their trees.  Our conclusions were that the orchids were just finding brightly lit places to grow; termites and <i>Phytophthora</i> were killing the trees.  Sick trees had more light reaching their branches, hence, more orchids, and the appearance of a cause-and-effect relationship.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/10239508@N07">Malcolm Manners</a> from Lakeland FL, USA
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/mmmavocado/3954592786/">Aerengis biloba</a>