Belongs within: Eurotiomycetidae.
The Onygenaceae are a group of keratinophilic, soil-dwelling and/or coprophilous fungi (Kirk et al. 2001).
Characters (Kirk et al. 2001): Ascomata sometimes stipitate; peridium varied, usually hyphal but occasionally pseudoparenchymatous, sometimes with complex appendages. Ascospores oblate or allantoid, pitted or reticulate. Anamorphs mostly Chrysosporium– or Malbranchea-like.
Onygenaceae
|--Castanedomyces australiensisEB03
|--Arachnotheca Arx 1971KC01
|--Ascocalvatia Malloch & Cain 1971KC01
|--Bifidocarpus Cano, Guarro & Castañeda 1994KC01
|--Byssoonygena Guarro, Punsola & Cano 1987KC01
|--Kuehniella Orr 1976KC01
|--Monascella Guarro & Arx 1986KC01
|--Nannizziopsis Currah 1985KC01
|--Neoarachnotheca Ulfig, Cano & Guarro 1997KC01
|--Neogymnomyces Orr 1970KC01
|--Polytolypa Scott & Malloch 1993KC01
|--Shanorella Benj. 1956KC01
|--Xanthothecium Arx & Samson 1973KC01
|--Apinisia La Touche 1968KC01
| `--A. graminicolaEB03
|--Auxarthron Orr & Kuehn 1963KC01
| `--A. zuffianumLK04
|--Amauroascus Schröt. 1893KC01
| `--A. kuehniiGS02
|--Onygena Pers. 1799 [incl. Piligena Schumach. 1821, Sphaeropus Paulet 1793]KC01
| `--O. equinaGS02
|--Pectinotrichum Varsavsky & Orr 1971KC01
| `--P. llanenseGS02
|--Renispora Sigler & Carmich. 1979KC01
| `--R. flavissimaJKW03
|--Uncinocarpus Sigler & Orr 1976 [incl. Brunneospora Guarro & Punsola 1987]KC01
| `--U. reesiiJKW03
|--Chrysosporium Corda 1833 (see below for synonymy)KC01
| `--C. pruinosumKC01
|--Aphanoascus Zukal 1890 (see below for synonymy)KC01
| |--A. fulvescensLK04
| `--A. mephitalisGS02
`--Malbranchea Sacc. 1882EB03, KC01 [incl. Thermoidium Miehe 1907KC01]
|--M. alboluteaEB03
|--M. dendriticaGS02
`--M. filamentosaIL01
Aphanoascus Zukal 1890 [incl. Anixiopsis Hansen 1897, Keratinophyton Randhawa & Sandhu 1964, Neoxenophila Apinis & Clark 1974, Xynophila Malloch & Cain 1971]KC01
Chrysosporium Corda 1833 [incl. Aleurisma Link 1809, Aleurophora Magalh. 1916, Atrichophyton Castell. & Chalm. 1919, Glenosporella Nann. 1931, Rhinocladiella Kamyschko 1960 non Nannf. 1934, Rhinocladiopsis Kamyschko 1961]KC01
*Type species of generic name indicated
References
[EB03] Eriksson, O. E., H. O. Barah, R. S. Currah, K. Hansen, C. P. Kurtzman, T. Laessøe & G. Rambold (eds.) 2003. Notes on ascomycete systematics. Nos 3580–3623. Myconet 9: 91–103.
[GS02] Gibas, C. F. C., L. Sigler, R. C. Summerbell & R. S. Currah. 2002. Phylogeny of the genus Arachnomyces and its anamorphs and the establishment of Arachnomycetales, a new eurotiomycete order in the Ascomycota. Studies in Mycology 47: 131–139.
[IL01] Inderbitzin, P., S. Landvik, M. A. Abdel-Wahab & M. L. Berbee. 2001. Aliquandostipitaceae, a new family for two new tropical ascomycetes with unusually wide hyphae and dimorphic ascomata. American Journal of Botany 88 (1): 52–61.
[JKW03] Jacobs, K., T. Kirisits & M. J. Wingfield. 2003. Taxonomic re-evaluation of three related species of Graphium, based on morphology, ecology and phylogeny. Mycologia 95 (4): 714–727.
[KC01] Kirk, P. M., P. F. Cannon, J. C. David & J. A. Stalpers. 2001. Ainsworth & Bisby’s Dictionary of the Fungi 9th ed. CAB International: Wallingford (UK).
[LK04] Lutzoni, F., F. Kauff, C. J. Cox, D. McLaughlin, G. Celio, B. Dentinger, M. Padamsee, D. Hibbett, T. Y. James, E. Baloch, M. Grube, V. Reeb, V. Hofstetter, C. Schoch, A. E. Arnold, J. Miadlikowska, J. Spatafora, D. Johnson, S. Hambleton, M. Crockett, R. Shoemaker, G.-H. Sung, R. Lücking, T. Lumbsch, K. O’Donnell, M. Binder, P. Diederich, D. Ertz, C. Gueidan, K. Hansen, R. C. Harris, K. Hosaka, Y.-W. Lim, B. Matheny, H. Nishida, D. Pfister, J. Rogers, A. Rossman, I. Schmitt, H. Sipman, J. Stone, J. Sugiyama, R. Yahr & R. Vilgalys. 2004. Assembling the fungal tree of life: progress, classification, and evolution of subcellular traits. American Journal of Botany 91 (10): 1446–1480.