Spiropes croissantiformis (MB 110) a synnemata (indicated by white arrows) growing on colonies of Meliola cf. xylopiae b synnema (indicated by a black arrow) c conidiophores with scars and young conidia, shown in optical section d conidia shown in optical section. The thickness of the wall is only shown for the first spore from the left e, f as seen by SEM e part of a conidiophore with scars f conidia. Scale bars: 160 μm (a); 400 μm (b); 5 μm (c, d); 5 μm (e); 10 μm (f).