Exidiopsis effusa

{{Short description|Species of fungus}}

{{Taxobox

| image = Exidiopsis effusa a1 (5).JPG

| image_width = 240px

| image_caption = Exidiopsis effusa on a piece of wood

| regnum = Fungi

| divisio = Basidiomycota

| classis = Agaricomycetes

| ordo = Auriculariales

| familia = Auriculariaceae

| genus = Exidiopsis

| species = E. effusa

| binomial = Exidiopsis effusa

| binomial_authority = Bref. (1888)

}}

Exidiopsis effusa is a species of fungus in the family Auriculariaceae, and the type species of the genus Exidiopsis. It is associated with the formation of hair ice on dead wood.{{cite journal |vauthors=Hofmann D, Preuss G, Mätzler C | year = 2015 | title = Evidence for biological shaping of hair ice | journal = Biogeosciences | volume = 12 | issue = 14 | pages = 4261–4273 | doi = 10.5194/bg-12-4261-2015 | bibcode = 2015BGeo...12.4261H | url = http://www.biogeosciences.net/12/4261/2015/bg-12-4261-2015.pdf| doi-access = free }}