Fistulina

Fistulina is a genus of bracket fungi in the family Fistulinaceae. The most well-known and frequently encountered species is Fistulina hepatica, commonly known as the beefsteak fungus, ox tongue fungus, or liver fungus.

Fistulina hepatica is characterized by its reddish-brown color and tongue-like or fan-shaped fruiting body, which resembles a piece of raw meat. It typically grows on the trunks of oak and chestnut trees, often near the base, and can be found in Europe, North America, and Australia.

The flesh of Fistulina hepatica is edible when young, having a slightly acidic, fruity flavor that is reminiscent of meat. It is often used in cooking as a meat substitute or to add a unique flavor to dishes. The fungus exudes a reddish juice when cut, further contributing to its meat-like appearance.

The genus Fistulina is relatively small, with Fistulina hepatica being the most prominent and researched member. Other less common species may exist or have been reclassified. The taxonomic classification of Fistulina and related fungi has been subject to revision over time, and ongoing research may lead to further changes in the understanding of its relationships within the fungal kingdom.