Paraisaria pseudoarcta A–C stromata emerging from host mouth D fertile part of stroma E cross section of fertile part showing arrangement of perithecia F, G perithecia H–K asci L ascospore M ascus cap N secondary ascospores. Scale bars: 10 mm (A–C); 1 mm (D, E); 100 μm (F, G); 30 μm (H–N).