Camarosporiaceae Wanas., Wijayaw., K.D. Hyde & Crous, fam. nov. MycoBank MB821938

Synonym: Camarosporiaceae Locq., Mycol. gén. struct. (Paris): 210 (1984); nom. inval., Art. 39.1 (Melbourne)

Saprobic, endophytic, pathogenic on leaves and wood in terrestrial habitats. Asexual morph: Conidiomata dimorphic, pycnidial, subcorticolous, single to gregarious, partly caespitose, globose, ostiole central, terete, short papillate. Conidiomata wall few-layered, consisting of a textura globulosa-angularis with red brown, thick-walled, and smooth cells. Conidiogenous cells formed from the inner cells of the pycnidial wall, doliiform, hyaline, thin-walled, annellidic. Conidia multicelled, muriformly septate, with one longitudinal or diagonal septum per cell and 1–2 per conidium, ellipsoidal, pyroid, clavate, straight to slightly curved, yellowish not brown, basal cell often paler or hyaline, wall golden. Synasexual morph: conidiomata separate, pycnidial, immersed to superficial, brown, globose, with 1–2 papillate ostioles, exuding a crystalline conidial mass. Conidiophores reduced to conidiogenous cells. Conidiogenous cells lining the inner cavity, hyaline, smooth, ampulliform. Conidia solitary, hyaline, smooth, subcylindrical, straight, rarely curved, apex obtuse, base truncate. Sexual morph: Ascomata gregarious to solitary, immersed to erumpent, globose to subglobose, black, unilocular, ostiolate. Ostiole black, papillate. Peridium with several cell layers of textura angularis, with outer layer brown to reddish brown, inner layer hyaline to sub hyaline. Asci stipitate, cylindrical, bitunicate, (2–)4–8-spored. Ascospores uniseriate, ellipsoidal, medium brown, mostly with obtuse ends, muriform, 3–8 transverse septa, with 1–2 longitudinal septa, constricted at septa.

Type genus: Camarosporium Schulzer.

 Notes: To better resolve interfamilial/intergeneric level relationships and improve taxonomic issues within Pleosporineae, we validate Camarosporiaceae (Camarosporiaceae Locq. 1984 was not validly published, Art. 39.1) to accommodate Camarosporium and Camarosporomyces. Wijayawardene et al. (2014b) also proposed Camarosporiaceae to accommodate Camarosporium s. str. but it was not formerly introduced.