Type: Foliicolous Fungi; Description: Sori stromatic, scattered, subepidermal in origin, becoming markedly erumpent and pushing aside a strip of the epidermis, cup-shaped, black, 0.5–2 mm in diameter, with a peridium which partially covers the fertile tissue and circumscribes the ostiole through which narrow, white to yellowish, flexuous, tangled hyphal filaments, coated with spores, extend for up to 2.5 mm; on yellowish brown leaf spots on both sides of leaves. Spores globose, 1-septate, 4–6 × 5–6 μm, verruculose, subhyaline, yellowish brown in mass.

Distribution: Northland, Auckland, Waikato, Bay of Plenty, Gisborne, Hawkes Bay.; 1st Record: Dingley (1959).

Significance: Although the large, black erumpent sori and protruding long, flexuous filaments of this false smut fungus present a striking appearance, it causes little damage.; Host(s): Phoenix canariensis, P. dactylifera.