Cladonia coniocraea

{{short description|Species of lichenised fungus in the family Cladoniaceae}}

{{Speciesbox

| image = Cladonia.coniocraea.2.jpg

| image_caption = Cladonia coniocraea

| genus = Cladonia

| species = coniocraea

| authority = (Flörke) Spreng.

}}

Cladonia coniocraea, commonly known as the common powderhorn or the powderhorn cup lichen,{{NGSWG}} is a species of fruticose, cup lichen in the family Cladoniaceae. It was first described by Heinrich Gustav Flörke in 1821 under the name Cenomyce coniocraea,{{Cite web|title=Index Fungorum - Names Record: Cladonia coniocraea|url=http://www.indexfungorum.org/names/NamesRecord.asp?RecordID=122248|url-status=live|access-date=2021-03-25|website=www.indexfungorum.org|archive-url=https://web.archive.org/web/20140416191545/http://www.indexfungorum.org/names/NamesRecord.asp?RecordID=122248 |archive-date=2014-04-16 }}{{cite book|author=Flörke, H.G.|date=1821|url=https://archive.org/details/bub_gb_--IUAAAAYAAJ/page/n94/mode/1up?view=theater|title=Deutsche Lichenen|volume=7|pages=14}} until Kurt Polycarp Joachim Sprengel reclassified it under the genus Cladonia in 1827.{{cite journal|author=Sprengel, K.P.J.S. |date=1827 |journal=Systema Vegetabilium|volume= 4|issue=1 |pages= 272 |url=https://www.biodiversitylibrary.org/page/790826| title=Cryptogamia Section III Cladonia}}

As of July 2021, its conservation status has not been estimated by the IUCN. In Iceland, its conservation status is denoted as data deficient (DD).