Lichenostigma radicans

Lichenostigma radicans is a species of lichenicolous (lichen-dwelling) fungus in the family Phaeococcomycetaceae. It grows specifically on certain lichens that live unattached on soil, known as vagrant lichens, primarily in mountainous, limestone-rich areas. First described in 2003 from a collection in eastern Spain, this fungus forms tiny, dark fruiting structures partly embedded in its host lichen. A distinctive feature is its root-like threads that penetrate deep into the host without causing significant harm. Lichenostigma radicans is closely related to other fungi in its genus but can be identified by these root-like structures and microscopic differences in its spores....read more on Wikipedia.