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Tremella mesenterica
The fruit body has an irregular shape, and usually breaks through the bark of dead branches. It is up to 7.5 cm (3.0 in) broad and 2.5 to 5.0 cm (1.0 to 2.0 in) high, rounded to variously lobed or brain-like in appearance. The fruit body is gelatin-like but tough when wet, and hard when dry. The surface is usually smooth, the lobes translucent, deep yellow or bright yellow-orange.
Wet/moist areas throughout Europe, North, Central, and South America, Africa, Asia, and Australia.