A foliicolous lichenized fungi is a

lichen A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Chlorophyta Chlorophyta or Prasinophyta is a taxon of green algae informally called chlorophytes. The name is used in two very different senses, so care is needed to determine the use by a particular author. In older classification systems, it refers to ...

are common

photosynthetic Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored in c ...

partner phycobionts of epiphyllous lichens.Lichen Photobionts, University of Nebraska Omaha

Etymology

''Foliicolous'' simply means 'growing upon leaves' whilst ''epiphyllous'' derives from the Greek ''epi'' meaning on or over and ''phyllous'' means leaf so 'over leaf' and ''hypophyllous'' means 'under leaf'.

References

Lichenology {{lichen-stub