This fungus has become common throughout New Zealand, causing defoliation of [lupin] plants; stem and pod lesions are also formed. As both host plants and fungus are introduced, the disease could be seed borne.

Type: Foliicolous Fungi; Description: Mycelium internal, in tissues of leaves and succulent young stems. Hyphae hyaline to brown, 4–16 μm wide. Conidiophores solitary, occasionally in small groups, bursting through the cuticle, straight, hyaline to subhyaline, 25–40 × 8 μm. Conidia fusoid, straight or slightly curved, 4–8-septate, 65–98 × 13–19 μm, smooth, apical and basal cells subhyaline, intermediate cells brown; apical cell bearing a terminal, tubular, hyaline appendage up to 105 × 3–4 μm, which tapers to 1 μm at the apex, and 1–4 similar, but shorter, lateral appendages.

Distribution: Auckland, Bay of Plenty, Taranaki, Mid Canterbury.; 1st Record: Dingley (1959).

Significance: Shown to be pathogenic to broom, causing stem lesions leading to wilting. Considered to have potential for development as a mycoherbicide (Johnston & Parkes 1994).; Host(s): Cytisus scoparius, Lupinus angustifolius, L. arboreus, L. luteus, Ulex europaeus.