Perithecia need a warm dry spring to develop, with water during late May to fully mature and release ascospores. Unlike culmorum, it doesn’t need heavy rainfall to spread.

Length and width of perithecia did not vary considerably. Conversely, length of perithecial beaks distorted the assessment of relatedness among isolates due to its variability. Morphological ...

The spheroid perithecia with lumina 330–470 μm wide and 220–320 μm high are densely distributed and entirely immersed in the tissues of a coniferous leaf. The perithecial wall consists of an outer ...

RECENT investigations1 into the micromorphological features of hill soils in north-east Scotland have revealed the presence, within the soil profile, of what appear to be perithecia containing ...