The fruit bodies of Nigroporus fungi are annual to perennial. Their form ranges from pileate (with a cap) to crust-like. When a cap is present, it is scrupose (rough with very small hard points) to smooth, and sometimes with concentric zones. The colour is greyish-blue, vinaceous-brown to pink or violet. The pore surface has the same colours as the cap; pores are usually small and round to angular. The context is vinaceous brown to pink and purplish.[3]
The hyphal system is dimitic, meaning it contains both generative and skeletal hyphae. The generative hyphae have clamp connections; the skeletal hyphae are brownish, and thick-walled to solid. There are no cystidia in the hymenium. The spores are mostly small, with their longest dimension typically less than 5 μm. They are smooth and thin-walled, hyaline (translucent), with an allantoid (long with rounded ends) to broadly ellipsoid shape.[3]
^ abMurrill, William A. (1905). "The Polyporaceae of North America: XI. A synopsis of the brown pileate species". Bulletin of the Torrey Botanical Club. 32 (7): 353–371. doi:10.2307/2478499. JSTOR2478499.
^ abcRyvarden L, Johansen I (1980). A preliminary polypore flora of East Africa. Synopsis Fungorum. Oslo, Norway: Fungiflora. p. 446.
^Ryvarden, L. (1972). "A critical checklist of the Polyporaceae in tropical East Africa". Norwegian Journal of Botany. 19 (3–4): 229–238.
^Douanla-Meli, Clovis; Ryvarden, Leif; Langer, Ewald (2007). "Studies of tropical African pore fungi (Basidiomycota, Aphyllophorales): three new species from Cameroon". Nova Hedwigia. 84 (3–4): 409–420. doi:10.1127/0029-5035/2007/0084-0409.
^Dai, Y.C.; Niemelä, T. (1995). "Changbai wood-rotting fungi 4. Some species described by A.S. Bondartsev and L.V. Lyubarsky from the Russian Far East". Annales Botanici Fennici. 32 (4): 211–226.