Cladidium

{{Short description|Genus of lichens}}

{{Automatic taxobox

| image =

| image_caption =

| taxon = Cladidium

| authority = Hafellner (1984)

| type_species = Cladidium thamnitis

| type_species_authority = (Tuck.) Hafellner (1984)

| subdivision_ranks = Species

| subdivision = C. bolanderi

C. thamnitis

}}

Cladidium is a genus of two species of lichen in the family Lecanoraceae.{{cite journal|last=Lumbsch TH, Huhndorf SM. |date=December 2007 |title=Outline of Ascomycota – 2007 |journal=Myconet |volume=13 |pages=1–58 |url=http://archive.fieldmuseum.org/myconet/outline.asp |publisher=The Field Museum, Department of Botany |location=Chicago, USA |url-status=dead |archiveurl=https://web.archive.org/web/20090318003134/http://www.fieldmuseum.org/myconet/outline.asp |archivedate=2009-03-18 }} Cladidium was circumscribed by Josef Hafellner in 1984 with C. thamnitis assigned as the type species. C. bolanderi was added to the genus in 1989.