Nigroporus

Nigroporus is a genus of poroid fungi in the family Steccherinaceae.[1] The genus was circumscribed by American mycologist William Alphonso Murrill in 1905.[2] Nigroporus has a pantropical distribution.[3] The genus name combines the Latin word niger ("black") with the Ancient Greek word πόρος ("pore").[4]

Nigroporus
Nigroporus vinosus
Scientific classification
Kingdom:
Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Polyporales
Family:
Steccherinaceae
Genus:
Nigroporus

Murrill (1905)
Type species
Nigroporus vinosus
(Berk.) Murrill (1905)
Species

N. durus
N. macroporus
N. stipitatus
N. ussuriensis
N. vinosus

Description

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]

Species
  • Nigroporus durus (Jungh.) Murrill (1907)[5]
  • Nigroporus macroporus Ryvarden & Iturr. (2004)[6]
  • Nigroporus scalaris (Fr.) Ryvarden (1972)[7]
  • Nigroporus stipitatus Douanla-Meli & Ryvarden (2007)[8]
  • Nigroporus ussuriensis (Bondartsev & Ljub.) Y.C.Dai & Niemelä (1995)[9]
  • Nigroporus vinosus (Berk.) Murrill (1905)[2]
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References
  1. Miettinen, Otto; Larsson, Ellen; Sjökvist, Elisabet; Larsson, Karl-Henrik (2012). "Comprehensive taxon sampling reveals unaccounted diversity and morphological plasticity in a group of dimitic polypores (Polyporales, Basidiomycota)" (PDF). Cladistics. 28: 251–270. doi:10.1111/j.1096-0031.2011.00380.x.
  2. Murrill, 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.
  3. Ryvarden L, Johansen I (1980). A preliminary polypore flora of East Africa. Synopsis Fungorum. Oslo, Norway: Fungiflora. p. 446.
  4. Donk, M.A. (1960). "The generic names proposed for Polyporaceae". Persoonia. 1 (2): 173–302.
  5. Murrill, William A. (1907). "Some Philippine Polyporaceae". Bulletin of the Torrey Botanical Club. 34: 465–481. doi:10.2307/2479067.
  6. Ryvarden, Leif; Iturriaga, Teresa (2003). "Studies in neotropical polypores 10. New polypores from Venezuela". Mycologia. 95 (6): 1066–1077. doi:10.1080/15572536.2004.11833021. JSTOR 3761913. PMID 21149014.
  7. Ryvarden, L. (1972). "A critical checklist of the Polyporaceae in tropical East Africa". Norwegian Journal of Botany. 19 (3–4): 229–238.
  8. 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.
  9. 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.
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