The diversity of Acarosporaceae (Acarosporales, Lecanoromycetes) in California

Acarospora alba, A. indistincta, A. sharnoffii, and A. tejonensis are described from California. Sarcogyne fasciculata is described from California and New Mexico. Sarcogyne coeruleonigricans is reported new for California. Sarcogyne lapponica is recognized as a synonym of Acarospora lapponica, its basionym. We report 127 described species of Acarosporaceae for North America. We verified 62 species of Acarosporaceae from California.