New species of Graphidaceae from Zhejiang Province, China

Four species of the lichen family Graphidaceae from Zhejiang Province, China, are described as new, namely Fissurina baishanzuensis, with hemithecioid ascomata, an entire, dark orange brown exciple and broadly ellipsoid muriform ascospores; F. subundulata, distinguished by hemithecioid ascomata, an entire, dark orange brown exciple and ellipsoid, muriform ascospores which are distinctly larger than in F. baishanzuensis; Graphis jinhuana, distinguished by mostly unbranched erumpent ascomata with a lateral thalline margin, open, non-pruinose discs, a laterally carbonized exciple, 7–9-septate ascospores and producing norstictic acid; and Graphis pananensis with irregularly branched ascomata with a lateral thalline margin, a concealed disc, a completely carbonized exciple, 7–9-septate ascospores and without secondary chemistry.