Fingered Jelly Lichen

Lathagrium cristatum, the fingered jelly lichen or fingered rock-jelly, is a species of cyanolichen in the family Collemataceae. Originally described by Carl Linnaeus in 1753, the species has a complex taxonomic history involving numerous synonyms and nomenclatural challenges that were only resolved through formal conservation of the name in 1996. The lichen forms distinctive dark olive-green to blackish rosettes on calcareous rocks, with thin, narrow lobes that have characteristically wavy, toothed margins. It has a widespread distribution across the Northern Hemisphere, occurring in diverse climates from arid lowland deserts to arctic and alpine zones.

From Wikipedia, under CC BY-SA 4.0.

Is it poisonous?

We have no record of Fingered Jelly Lichen being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

• Lathagrium fuscovirens
• Blennothallia crispa
• Enchylium tenax
• Collema flaccidum

Classification

Kingdom

Fungi

Phylum

Ascomycota

Class

Lecanoromycetes

Order

Peltigerales

Family

Collemataceae

Genus

Lathagrium

Species

Lathagrium cristatum

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