Ysiberica

Ysiberica is a genus of fungi belonging to the family Xylariaceae. This genus was first described in 2012, and its type species is Ysiberica phillipsii. Fungi within the Ysiberica genus are typically found on decaying wood in temperate and tropical regions. They are characterized by their dark, often black, stromata, which are the fruiting bodies that produce spores. The stromata can vary in shape, from superficial to immersed, and may be orbicular or elongated.

The internal structure of Ysiberica stromata often shows a distinct layer of context. Microscopically, the asci, which are spore-bearing cells, are typically cylindrical and contain eight ascospores. The ascospores themselves are usually fusiform or inequilaterally ellipsoid and are dark brown to black in color. Ysiberica species are saprobic, meaning they derive nutrients from dead organic matter, playing a role in decomposition within their ecosystems. Research into Ysiberica is ongoing, with new species potentially yet to be discovered and described. Their ecological significance lies in their contribution to nutrient cycling through the breakdown of woody material.