Helicobolomyces

Helicobolomyces is a fungal genus in the family Arthoniaceae. This is a monotypic genus, containing the single species Helicobolomyces lichenicola. This parasitic fungus lives on thin-crusted lichens in humid tropical mountain forests, appearing as scattered, pin-head-sized orange spots that erupt through the host lichen's surface and turn dark violet when treated with potassium hydroxide solution. It produces distinctive spores built from tiny spherical cells arranged in a tight helical chain surrounded by a gelatinous sheath, giving them a twisted-ribbon appearance under the microscope....read more on Wikipedia.