Pleopeltis furfuraceum is one of two species in the genus that act as host to epiobiotic species of the ascomycete fungus Acrospermum. The other species is P. ballivianii. Acrospermum is only found on the fronds of P. furfuraceum in a portion of its geographic range, in more humid forests at lower elevations.
Pleopeltis furfuraceum

This is great, Miguel! I have to look for Acrospermum down here. Thanks for the post! Can I use some of these pics in my classes?
Of course!