摘要

The Acarospora strigata group is distinguished by a common phenotype of heavily pruinose areoles with deep fissures cleaving the cortex. It occurs from South and North America through Asia to Africa and Europe. One new species is described from China in Xinjiang in central Asia: Acarospora tianshanica, which produces gyrophoric acid. Acarospora interrupta is lectotypified and reported new from China. In addition, a key is supplied to the nine species currently recognized in the Acarospora strigata group.