Striatosphaeria castanea (CBS 145352). A, B ascomata C asci D ascospores E ascal apex with apical annulus F colonies on CMA with an Urtica dioica stem after 8 wk G–J conidia K–Q conidiophores R colonies on CMD, MLA, OA and PCA after 4 wk (from left to right). Scale bars: 500 μm (A, B); 20 μm (C, E); 10 μm (D, G–Q); 1 cm (F, R).