Clavascidium sinense
Clavascidium sinense is a species of squamulose (scaley), ground-dwelling lichen in the family Verrucariaceae. Found in Northwest China, it was formally described as a new species in 2022 by Tingting Zhang and Xinli Wei. The type specimen was collected in Datong City (Yanggao County, Shanxi) at an altitude of . The species epithet sinense refers to its Chinese distribution. Characteristics of Clavascidium sinense include the presence of both uniseriate (lined up in a single row) and biseriate (lined up in two rows) ascospores in the asci, pycnidia that are superficial on the surface of the squamules (laminal), and mixed-type medulla (with both rounded and elongated cells). The lichen does not react with any of the standard chemical spot tests, and no lichen products were detected using thin-layer chromatography. References

Verrucariales
Lichen species
Lichens described in 2022
Lichens of China