''Psoroma'' is a genus of

lichen A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.fungi in the family

Pannariaceae The Pannariaceae are a family of lichens in the order Peltigerales (suborder Collematineae). Species from this family have a widespread distribution, but are especially prevalent in southern temperate regions. Genera According to a recent (202 ...

. The genus was circumscribed by French botanist André Michaux in 1803. The widespread genus contains an estimated 58 species, most of which are found in south temperate regions. Some species formerly in ''Psoroma'' were transferred to the new genera '' Psorophorus'' and '' Xanthopsoroma'' in 2010. The genus '' Joergensenia'' was erected in 2008 to contain the species formerly known as ''Psoroma cephalodinum''.

Species

*'' Psoroma absconditum'' *'' Psoroma asperellum'' *'' Psoroma caliginosum'' *'' Psoroma capense'' – South Africa *'' Psoroma cinnamomeum'' *'' Psoroma cyanosorediatum'' *'' Psoroma echinaceum'' *'' Psoroma esterhuyseniae'' – South Africa *'' Psoroma fruticulosum'' *'' Psoroma geminatum'' *'' Psoroma hypnorum'' *'' Psoroma multifidum'' *'' Psoroma papuana'' *'' Psoroma pholidotoides'' *'' Psoroma saccharatum''

References

Lichen genera Peltigerales Taxa named by André Michaux Peltigerales genera {{Peltigerales-stub