Asteromella pistaciarum W 1973-15537 (lectotype). a, b Pycnidia in leaf in face view c–e Pycnidia embedded in leaf in vertical section f Pycnidial wall with phialides and conidia in vertical section g Pycnidial wall in tangential section h–l Conidiophores and conidiogenous cells m Conidia. Scale bars: 10 mm (a); 100 µm (b); 20 µm (c–e); 10 µm (f–l); 5 µm (m).