Syntrichia rhizogemmascens (Pottiaceae), a new species from northwestern China

摘要

A Syntrichia specimen collected from Longshoushan Mountain in northwestern China is described as a new species, namely S. rhizogemmascens. The new species is characterized by the spherical rhizoidal gemmae, obtuse and emarginate apex, plane leaf margins, a white hyaline and smooth hair point. The diagnostic characters are compared with those of most similar species. The distribution and habitat of the species is also discussed.