Neonectria ilicis  

Anamorph: Cylindrocarpon-like. Conidiomata absent. Microconidiophores absent, the conidiogenous cells terminal or developing as short lateral branches, 17-25 x 2-2.5 µm, ± cylindrical but tapering slightly towards the apex, proliferating percurrently with periclinal thickening and a small collarette. Microconidia 7.5-16 x 2.5-4 µm, ellipsoidal to cylindric-ellipsoidal, hyaline, sometimes becoming 1-septate. Macroconidia formed from similar conidiogenous cells 18-32 x 2.5-3.5 µm in size, formed from simple to repeatedly branched conidiophores; 90-115 x 6-8 µm, ± cylindrical with rounded ends but often tapering slightly towards the apex, straight or only slightly curved, 7- to 9-septate, hyaline, thin-walled, without a gelatinous sheath or appendages.
Teleomorph: ascomata perithecia, denseley crowded and developing in succession on an erumpent stroma composed of globose thin-walled tissue, 230-250 µm diam.,  globose to ovoid, minutely papillate with a small, slightly more pigmented apical disc, red to purplish brown. Peridium 30-40 µm thick, smooth, composed of an outer layer of ± globose thick-walled cells mostly 6-8 µm diam., a central layer of yellowish globose to elongate thinner-walled cells and an inner layer of flattened hyaline tissue. Interascal tissue absent, at least at maturity. Asci 110-130 x 14-15 µm, cylindric-clavate with a short stalk and rounded apex, thin-walled, not fissitunicate, without a clearly defined apical ring, 8-spored. Ascospores uniseriately or partially biseriately arranged, often varying considerably in size and shape even within the ascus, (14-) 16-21 (-24) x 6-8 (-10) µm, fusiform, sometimes with a slight constriction at the median septum, thin-walled, eventually becoming pale yellow-brown and slightly roughened, without a gelatinous sheath or appendages.