Type: Sooty Moulds and Similar Fungi; Description: Subiculum superficial, loosely or densely plumose, up to 80 mm wide, spongy, dull dark brown to black but sometimes glistening; on branches and twigs, often enveloping the branch or twig which supports it, less frequently on leaves. Mycelium composed of olivaceous brown to dark brown, septate, finely to coarsely warted, straight or curved, 12–18 μm wide hyphae. Ascomata stromatic, scattered or in groups, basally immersed, dark brown to black, subglobose, 0.34–0.45 mm in diameter, ostiolate, bearing laterally simple, septate, dark brown, cylindrical hyphal appendages. Asci broadly ellipsoidal, 100–125 × 40–55 μm. Ascospores more or less ellipsoidal, straight, 5–9-septate, 40–70 × 14–18 μm, smooth, olivaceous brown to dark brown. Antennatula synanamorph. Conidia fusiform to subcylindrical, straight to strongly curved, 7–15-septate (mostly 9–11-septate), 80–125 × 11–15 μm, smooth, olivaceous brown to dark brown. Hormisciomyces synanamorph. Conidia subglobose to obovoid, 0-septate, 2.5 × 2.0 μm, hyaline, produced in slime within the whorl of phialides.

Distribution: Northland, Auckland, Taupo, Wellington, Nelson, Buller, Westland, North Canterbury, Mid Canterbury, South Canterbury, Mackenzie, Auckland Islands.; 1st Record: Hughes (1974a).

Significance: A very common sooty mould on a large number of hosts.; Host(s): Ackama rosifolia, Alseuosmia macrophylla, Aristotelia fruticosa, A. serrata, Beilschmiedia tawa, Brachyglottis repanda, Carpodetus serratus, Chamaecytisus palmensis, Coprosma foetidissima, C. rhamnoides, Dacrycarpus dacrydioides, Dracophyllum subulatum, Griselinia littoralis, Hebe stricta var. stricta, Knightia excelsa, Kunzea ericoides, Laurelia novaezelandiae, Leptospermum scoparium, Leucopogon fasciculatus, Melicope simplex, Myrsine australis, Neomyrtus pedunculata, Nothofagus fusca, N. menziesii, N. solandri var. cliffortioides, Olearia paniculata, Pennantia corymbosa, Phyllocladus trichomanoides, Phymatosorus diversifolius, Pittosporum colensoi, Prumnopitys ferruginea, Pseudopanax sp., Pseudowintera colorata, Quintinia serrata, Ripogonum scandens, Weinmannia racemosa, W. sylvicola.