The genus Orbilia Fr. (Orbiliaceae Nannf.) was currently thought to comprise some dozens of species, being particularly common in temperate regions on woody substrates in moist habitats. During monographic work on the family Orbiliaceae over many years by the second author, species diversity turned out to be extremely higher, with presently about 330 species of Orbilia, and a strong preference of semihumid to arid, subtropical to tropical vegetation zones. The characterization of the genus and classification history of Orbiliaceae has been reviewed, e.g., in Liu et al. (2005) and Zhang et al. (2007, 2009).