Type: Lignicolous Fungi; Description: Basidiomata annual or biennial, solitary or in groups, leathery, attached by a lateral base. Pilei applanate, conchate or fan-shaped, 10–80 mm wide, 1–2 mm thick. Pileus surface tomentose, becoming glabrous, silky, shining, concentrically sulcate, dark brown, black when old, occasionally with concentric bands of different shades of brown, margin concolorous or darker, crenate. Pore surface even, with a sterile border 1–2 mm wide, cinnamon brown to dark brown, pores small, 8–9 per mm. Context cinnamon brown to dark brown, up to 1 mm thick. Hyphal system monomitic. Setae subulate, 16–32 × 4–6 μm, chestnut brown. Basidiospores elliptical, 2–3 × 1–2 μm, smooth, hyaline.

Distribution: Auckland, Coromandel, Waikato, Bay of Plenty, Taranaki, Taupo, Rangitikei, Wellington, Hawkes Bay, Nelson, Buller, Westland, Fiordland, Marlborough, Mid Canterbury, Otago Lakes, Dunedin, Southland, Stewart Island.; 1st Record: Berkeley (1855: as Polyporus tabacinus).

Significance: Of little importance. Causes a yellow-pipe heart rot and sap rot in damaged indigenous trees.; Host(s): Agathis australis, Beilschmiedia tawa, Fuchsia excorticata, Kunzea ericoides, Leptospermum scoparium, Metrosideros excelsa, M. robusta, Nothofagus fusca, N. menziesii, N. truncata, Pittosporum tenuifolium, Weinmannia racemosa.