The Ostropales are an order of fungi in the class Lecanoromycetes. The order was circumscribed by Swedish botanist John Axel Nannfeldt in 1932. The order contains 4 families and 46 genus, including 6 genera of incertae sedis familial placement.
Families and genera
- : Claviradulomyces – 2 spp.
- : Coccomycetella – 2 spp.
- : Odontotrema – 7 spp.
- : Odontura – 1 sp.
- : Paschelkiella – 1 sp.
- : Potriphila – 3 spp.
- : Rogellia – 2 spp.
- : Stromatothecia – 1 sp.
- : Tryblis – 2 spp.
- : Xerotrema – 2 spp.
- : Phaneromyces – 2 spp.
- : Spirographa – 5 spp.
- : Absconditella – 12 spp.
- : Acarosporina – 5 spp.
- : Biostictis – 5 spp.
- : Carestiella – 2 sp.
- : Conotremopsis – 1 sp.
- : Cryptodiscus – 15 spp. *
- : Cyanodermella – 2 spp.
- : Delpontia – 1 sp.
- : Fitzroyomyces – 1 sp.
- : Geisleria – 4 spp.
- : Glomerobolus – 1 sp.
- : Ingvariella – 1 sp.
- : Karstenia – 10 spp.
- : Lillicoa – 4 spp.
- : Nanostictis – ca. 8 spp.
- : Neofitzroyomyces – 1 sp.
- : Ostropa – 1 sp.
- : Propoliopsis – 1 sp.
- : Robergea – 8 spp.
- : Schizoxylon – ca. 35 spp.
- : Sphaeropezia – 19 spp.
- : Stictis – 4 spp.
- : Stictophacidium – 3 spp.
- : Thelopsis – 9 spp.
- : Topelia – 6 spp.
- : Trinathotrema – 3 spp.
- : Xyloschistes – 1 sp.
Ostropales genera of incertae sedis familial placement:
- Aabaarnia
– 1 sp.
- Biazrovia
– 1 sp.
- Elongaticonidia
– 1 sp.
- Malvinia – 1 sp.
- Normanogalla
– 1 sp.