Helotiales is the largest order of inoperculate discomycetes. It contains the famous blue-green cup fungi that makes its home on oaks is known by the genus name Chlorociboria.
Habit
Helotiales is distinguished by its disc or cup-shaped apothecia.
Its asci are only slightly thickened in contrast to other Leotiomycetes
Most Helotiales live as saprobes on soil humus, dead logs, manure and other organic matter.