Chapsa (Graphidaceae, Ostropales), A Lichen Genus New to China

Abstract:

Based on the specimens collected from Hainan Island and Guangxi Province, the lichen genus Chapsa A. Massal. and two species, C. indica A. Massal. and C. leprocarpa (Nyl.) A. Frisch, are reported as new to China. The genus is characterized by the corticolous crustose thallus, apothecioid or chroodiscoid ascomata with a fused to indistinctly free proper exciple, the presence of lateral paraphyses, and the transversely septate to muriform asco-spores.