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Species library › Tremella › Tremella pertusariae
Fungi Little published: much of this is inferred from related species

Tremella pertusariae

A lichen-parasitic jelly fungus that forms pale to dark brown or blackish galls, mostly on the apothecia of Pertusaria hymenea, sometimes on the thallus of P. hymenea and P. pertusa. It is widespread in western Europe, is also recorded from North America, and is common in the western Pyrenees. It cannot be cultivated.

Tremella pertusariae
Photo: Millanes A, Diederich P, Westberg M, Knutsson T, Wedin M (2014) Tremella rhizocarpicola sp. nov. and other interesting lichenicolous Tremellales and Filobasidiales in the Nordic countries. MycoKeys 8: 31-41. https://doi.org/10.3897/mycokeys.8.8176, CC BY 4.0, via Wikimedia Commons
At home, aim for
Day Cool-growingTargets in Plantistry
Night Close to the dayTargets in Plantistry
Humidity —Band in Plantistry
Light Bright, filtered lightDLI and PPFD in Plantistry
No rest period

Where it grows wild

Galls on Pertusaria hymenea and P. pertusa on bark of old broadleaved trees, especially beech and oak, in woodland, parkland and avenues.

Recorded at 0–1036 m, median 100 m (22 records).

EuropeNorth AmericaAustralia

🔒 Growing it like that

The wild conditions above, turned into targets for a shelf, a tent or a greenhouse. The full profile has:

✓ Day and night temperature targets, and the limits it tolerates
✓ Humidity band, and how to hold it
✓ Light as DLI and PPFD for a grow light
✓ Wet and dry seasons, and whether to rest it
✓ Substrate and airflow
✓ A step-by-step setup to grow it like the wild

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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY 4.0 licence, unmodified.