Type: Xylophilous Fungi; Description: Ascomata perithecial, scattered, superficial, globose with long necks, black, 0.1–0.2 mm in diameter, perithecial necks straight or curved, black, often annulate, 500–1900 μm long, ostiolar hyphae straight or divergent, hyaline, 6–25 μm long; in bark beetle galleries in inner bark or outer sapwood and as hyphae in sapwood. Asci evanescent. Ascospores allantoid, 0-septate, 3–5 × 1–2 μm, smooth, hyaline. Pesotum piceae synanamorph. Conidiophores forming a dark brown to blackish brown stipe; conidiogenous cells borne on penicillate branches, hyaline. Conidia oblong to ellipsoidal, 0-septate, 3–6 × 1–2 μm, smooth, hyaline, produced in slimy heads. Sporothrix-like or Hyalodendron-like synanamorphs. Conidiogenous cells denticulate. Conidia produced sympodially upon the denticles, singly (Sporothrix-like) or in chains (Hyalodendron-like), cylindrical to clavate, 0-septate, 4–10 × 1–2 μm, smooth, hyaline.

Distribution: Bay of Plenty, Taupo, Nelson, Marlborough, Mid Canterbury, South Canterbury.; 1st Record: Butcher (1968: as Ceratocystis piceae).

Significance: Reported as the main cause of sapstain in untreated, block-stacked sawn timber of Nothofagus fusca (Butcher 1968) and Pseudotsuga menziesii (Butcher 1973). It is of minor importance as a cause of sapstain in sawn timber of Pinus radiata (Butcher 1968).; Host(s): Dacrydium cupressinum, Eucalyptus sp., Larix kaempferi, Pinus radiata, Prumnopitys taxifolia, Pseudotsuga menziesii.