Chapsa murioelongata (LCUF HN19222) A habit of thallus with apothecia at different developmental stages B apothecium (the pruina of the disc partly scraped off) C section of apothecium with periphysoids (direction of arrow) D paraphyses E an ascus containing six ascospores F ascospore. Scale bars: 3 mm (A); 0.5 mm (B); 50 μm (C); 8 μm (D); 30 μm (E); 25 μm (F).