Tremella plana

An 18th-century name. GBIF treats Tremella plana F.H.Wigg. as a synonym of Exidia nigricans, the black witches' butter that forms flat, black, wrinkled jelly sheets on dead hardwood branches; Withering's homonym Tremella plana With. is unresolved. The profile follows the Exidia nigricans sense.

At home, aim for

Day Cool-growingTargets in Plantistry

Night Close to the dayTargets in Plantistry

Humidity Very humid airBand in Plantistry

Light Dappled lightDLI and PPFD in Plantistry

Expects a seasonal rest

Where it grows wild

Black gelatinous crusts and sheets on the bark of dead, attached or fallen hardwood branches, especially oak, in temperate woods and hedges.

Mainly lowland to submontane; no elevation data for this name.

Europe

🔒 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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More Tremella

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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.