Belongs within: Diaporthomycetidae.
The Annulatascaceae are a family of freshwater fungi producing cylindrical-clavate asci with relatively massive refractive apical rings (Ho & Hyde 2000).
Annulatascaceae [Annulatascales]
|--Annulatascus Hyde 1992HM17, HH00
| |--A. biatriisporusHH00
| |--A. hongkongensisHH00
| |--A. incrustatusHH00
| `--A. velatisporus Hyde 1992HH00
`--+--Annulusmagnus triseptatusHM17
`--+--Submersisphaeria Hyde 1996HM17, KC01
| `--S. aquaticHM17
`--Pseudoproboscispora Punith. 1999HM17, KC01 [=Proboscispora Wong & Hyde 1999 non Punith. 1984KC01]
|--P. aquaticaHH00 [=*Proboscispora aquatica Wong & Hyde 1999E99]
`--P. caudaeHM17
Annulatascaceae incertae sedis:
AqualignicolaEB03
Aquaticola Ho, Tsui et al. 1999EB03, KC01
BrunneosporellaEB03
Clohiesia Hyde 1995EB03, KC01
Frondicola Hyde 1992EB03, KC01
Torrentispora Hyde, Ho et al. 2000KC01
Vertexicola Ranghoo, Hyde et al. 2000KC01
Diluviocola Hyde, Wong & Jones 1998EB03, E99
`--*D. capensis Hyde, Wong & Jones 1998E99
Cataractispora Hyde, Wong & Jones 1999KC01
|--C. appendiculataHH00
`--C. aquaticaHH00
Rhamphoria Niessl 1876KC01
*Type species of generic name indicated
References
[E99] Eriksson, O. E. (ed.) 1999. Notes on ascomycete systematics. Nos 2440–2755. Myconet 2: 1–41.
[EB03] Eriksson, O. E., H. O. Barah, R. S. Currah, K. Hansen, C. P. Kurtzman, G. Rambold & T. Laessøe (eds.) 2003. Outline of Ascomycota—2003. Myconet 9: 1–89.
[HH00] Ho, W. H., & K. D. Hyde. 2000. A new family of freshwater ascomycetes. Fungal Diversity 4: 21–36.
[HM17] Hongsanan, S., S. S. N. Maharachchikumbura, K. D. Hyde, M. C. Samarakoon, R. Jeewon, Q. Zhao, A. M. Al-Sadi & A. H. Bahkali. 2017. An updated phylogeny of Sordariomycetes based on phylogenetic and molecular clock evidence. Fungal Diversity 84: 25–41.
[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).