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Rare Fungus Returns to Isle of Man After 50 Years

2/1/2026

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Summary

Story summary

Terana caerulea, known as Cobalt Crust, has been found on the Isle of Man for the first time in over 50 years.
The fungus grows on dead wood and tree branches in warm, damp forests.
The fungus is used to produce an antibiotic for infections such as strep throat.
Liz Charter, founder of the Isle of Man Fungus Group, says sightings rose because more people search for it and favorable weather.

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Story summary

Terana caerulea, known as Cobalt Crust, has been found on the Isle of Man for the first time in over 50 years.
The fungus grows on dead wood and tree branches in warm, damp forests.
The fungus is used to produce an antibiotic for infections such as strep throat.
Liz Charter, founder of the Isle of Man Fungus Group, says sightings rose because more people search for it and favorable weather.