Acanthoclada

Acanthoclada is a genus of fungi in the family Polyporaceae. Species within this genus are characterized by their poroid hymenophore, meaning the pores are visible on the underside of the fruiting body, and by the presence of spines or acanthohyphae. These structures are often branched and sharp, contributing to the genus's name, which derives from Greek words meaning "spine" and "branch."

The fruiting bodies of Acanthoclada species are typically tough and woody, often growing on wood. They are generally resupinate to reflexed, meaning they can be flat against the substrate or have edges that curl upwards. The pore surface is usually white to cream-colored. The context, or internal flesh, is often white and fibrous.

The exact taxonomic placement of Acanthoclada has been subject to revision with advances in molecular phylogeny. While traditionally placed within Polyporaceae, ongoing research continues to refine its relationships with other fungal groups. The ecological role of Acanthoclada species is primarily that of wood decomposers, contributing to nutrient cycling in forest ecosystems. Identification often relies on microscopic features, including the morphology of the basidiospores and the presence and characteristics of the acanthohyphae. Further research is needed to fully understand the diversity and distribution of species within this genus.