Fusarium sambucinum  

Anamorph (Fusarium sambucinum): cultures peach or pale becoming cream, sulphureus to light brown; growth medium to rapid, covering a petri dish in 6–7 days at 25°C; aerial mycelium floccose to felted. Macroconidia only produced from lateral conidiogenous cells, or from simple palmate conidiophores formed from a lateral branch, the apical branches or metulae bearing one to several terminal conidiogenous cells which measure 15–20 × ca 5 μm at the base, thin-walled, curved, fusiform with a somewhat elongated apical cell and an non-pedicellate foot cell, 3–5-septate when mature, 23–46 × 3·5–5 μm. Chlamydospores globose, 8–10 μm diam. and form singly or in short chains in the mycelium.
Teleomorph: (Gibberella cyanogena, G. pulicaris): ascomata perithecia, developing in groups when cultured on wheat straw, globose to ovoid, tuberculate, violet, 140–200 μm diam. Asci unitunicate, clavate, almost sessile, 65–90 × 12–15 μm, 6–8-spored. Ascospores ellipsoidal, straight or slightly curved, 3-septate, 20–25 × 5–7 μm; the species is heterothallic and opposite mating strains tend to be geographically separate.

Description adapted from Booth (1978).