Costeti

Costeti is a genus of fungi belonging to the family Boletaceae. These mushrooms are characterized by their fleshy fruiting bodies, typically featuring a cap, stem, and pores on the underside of the cap instead of gills. The pore surface is often brightly colored and can stain when bruised. Costeti species are generally found in association with trees, forming mycorrhizal relationships, meaning they benefit from the exchange of nutrients with the tree's roots.

The taxonomy of Costeti has undergone revisions, with some species previously placed in other genera being reclassified into Costeti. Identification of species within this genus often relies on a combination of macroscopic features such as cap color and texture, stem characteristics, pore surface color, and staining reactions, as well as microscopic details. Molecular phylogenetic studies have also played a significant role in clarifying relationships within the Boletaceae and defining the boundaries of the Costeti genus.

Little is widely documented about the edibility of most Costeti species. As with many wild mushrooms, caution is advised, and expert identification is recommended before considering consumption. Research into the ecological roles and biochemical properties of Costeti fungi is ongoing, contributing to our understanding of fungal diversity and forest ecosystems.