Type: Corticolous Fungi; Description: Ascomata perithecial, scattered or gregarious in groups of 3–4, globose to ovoid, bright red becoming dark red, finely warted, 0.1–0.4 mm in diameter, ostiole papillate and surrounded by slightly convex, smooth disc, superficial; on or associated with cankers on branches. Asci clavate, 60–100 × 10–15 cm. Ascospores elliptical to broadly oval, 1-septate, 14–22 × 5–9 em, smooth to slightly verrucose, hyaline. Macroconidia cylindrical, slightly curved, 3–5-septate, 20–65 × 3–6 lm, smooth, hyaline. Microconidia cylindrical, 0-septate, 4–8 × 2–3 m, smooth, hyaline.

Distribution: Northland, Auckland, Coromandel, Waikato, Bay of Plenty, Taranaki, Gisborne, Hawkes Bay, Nelson, Westland.; 1st Record: Cunningham (1925b: as Nectria galligena).

Significance: A pathogen of apples (and occasionally pears), causing cankers on branches leading to dieback. The disease, known as ‘European canker’, is of considerable economic importance in the Auckland apple-growing area and has limited the growing of some susceptible varieties. It is not a major disease in other parts of the country (Atkinson 1971).; Host(s): Malus ×domestica, Pyrus communis, P. pyrifolia.