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polychidium lichen
Polychidium
Polychidium is a genus of lichen-forming fungi in the family Massalongiaceae. These lichens form tiny, shrub-like tufts with branching filaments that create woolly cushions on moss-covered rocks and tree twigs. The genus was traditionally thought to include four similar-looking species, but molecular studies revealed that three of these actually belong to a different genus called Leptogidium. Today, Polychidium in the strict sense contains only P. muscicola and three closely related species, found from tropical to subarctic regions worldwide.
6 branches of this genus, most-observed first
Eyed Mossthorns Lichen
speciesPolychidium muscicola
Polychidium cretaceum
speciesPolychidium cretaceum
Polychidium adpressum
speciesPolychidium adpressum
Polychidium cetrarioides
speciesPolychidium cetrarioides
Polychidium centrifugum
speciesPolychidium centrifugum
Polychidium amphineum
speciesPolychidium amphineum
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Polychidium in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 175316.