Pseudonectria buxi

Study corresponding to the asexual or conidial state of the species, known as Volutella buxi, on leaves of common box (Buxus sempervirens), with minute salmon-pink sporodochia erupting scattered yet abundantly over the lower surface of the leaf.

Sporodochia fringed with setiform hairs, cylindrical, elongated, hyaline, thick-walled, with rounded apices, 60 to 150 µm long.

Phialides simple to branched, fusiform to lageniform, hyaline, 11 to 20 µm long, 3 to 5 µm wide at the base.

Conidia ellipsoidal to fusiform, smooth, hyaline, thin-walled, with slightly pointed ends, 8 to 12 µm long, 2.5 to 3.5 µm wide, containing small lipid drops (guttules) inside.