Abstract:Two Astrochapsa species, A. pseudophlyctis and A. zahlbruckneri, are reported from China for the first time based on the morphological, anatomical and chemical characteristics. Astrochapsa pseudophlyctis is characterized by the crustose thallus with a compact surface, rounded to angular apothecia in outline, hyaline and muriform ascospores sized 30-75 μm×10-25 μm, and absence of lichen compounds detected. Astrochapsa zahlbruckneri is characterised by the crustose thallus, usually angular-rounded to irregular apothecia in outline with a strongly raised, jagged to typically lobed, upright to recurved margin, hyaline or slightly brownish and densely muriform ascospores (55-90 μm×22-28 μm), and presence of stictic acid.
