Hoof Fungi by The River Derwent

On a pleasant seasonal stroll yesterday, through Thornley Wood along the banks of the River Derwent, I managed to grab this interesting capture.

When hoof-shaped fungi appears on birch or beech trees—hard, shelf-like growths clinging to trunks—they carry a quiet, ancient authority. Long before mycology named them Fomes fomentarius or Ganoderma, people recognised them by form and implication. Their resemblance to animal hooves pulled them into myth, especially in cultures where trees themselves were seen as living, ensouled beings.

In pre-modern folklore, a fungus growing from a tree was rarely understood as an external organism. Instead, it was treated as a condition of the tree: a growth, a wound, or a transformation. Hoof fungus, emerging like a hardened scar, marked a tree as altered. In parts of Europe, such trees were considered liminal—no longer fully alive, not yet dead—and were avoided for timber but prized for ritual or medicinal use.

One of the fungus’s most powerful mythic roles comes from fire. Hoof fungus can smoulder for hours, making it ideal tinder. This ability has earned it a reputation as “sleeping fire,” a substance that remembers flame. Folklore across Europe and Central Asia holds that lightning-struck trees produce especially potent fungus, as though celestial fire has been caught in the wood and given form. Carrying it is believed to offer protection, continuity, and survival.

At the same time, hoof fungus is deeply associated with death and decay. Growing on dying or dead trees, it visibly marks the slow work of breakdown. In Slavic and Baltic traditions, such fungi were linked to forest spirits and the underworld. Harvesting them without respect risked angering the land. Yet this decay was not seen as evil—it was necessary, feeding the earth and sustaining renewal.

Christian folklore later darkened these associations. The hoof-like shape invited diabolic interpretations, earning names such as “the Devil’s Saddle.” Witches were said to harvest the fungus for charms and powders, reflecting both fear and fascination with its medicinal uses. In reality, it was valued as a styptic and antiseptic, used to stop bleeding and treat wounds.

There is a quiet symbolism here: a growth on a wounded tree used to heal wounded bodies. Hoof fungus embodied the idea that remedy and affliction arise together. Even today, encountering one in the forest feels like meeting something ancient—a marker of time, fire, death, and endurance. It stands as a reminder that forests are never just landscapes, but living systems layered with meaning, memory, and myth.

Cheers, Rowan.