Boeremia hedericola produces large spots on the living leaves of various Ivy species. It produces asexual spores from the tiny brown pycnidia (fruiting bodies).

There are several very similar species (e.g. see Colletotrichum trichellum).

host

Photograph on the host species; note host plant in your comments.  Microscopic examination is required and we recommend this is confirmed by an expert from a specimen before submission to NatureSpot

on Ivy leaves