Fuscocerrena
Fuscocerrena portoricensis in Ecuador
Scientific classification
Kingdom:
Fungi
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Polyporales
Family:
Polyporaceae
Genus:
Fuscocerrena

Ryvarden (1982)
Type species
Fuscocerrena portoricensis
(Fr.) Ryvarden (1982)
Synonyms
  • Polyporus portoricensis Fr. (1828)
  • Cerrenella coriacea (Berk. & Ravenel) Murrill (1905)
  • Cerrenella subcoriacea Murrill (1908)

Fuscocerrena is a fungal genus in the family Polyporaceae. It is a monotypic genus, containing the single polypore species Fuscocerrena portoricensis, found in eastern North America, Central America, and South America.

Taxonomy

Fuscocerrena was circumscribed by Norwegian mycologist Leif Ryvarden in 1982 to contain the fungus originally described by Elias Fries as Polyporus portoricensis. This species was also previously placed in Cerrenella, a genus proposed by William Murrill in 1905, but later abandoned.[1]

Description

The genus is characterized by its irregular fruit body that when fresh is farinose (covered by a white, mealy powder) and greenish white in colour; older fruit bodies become dark brown. Microscopically, the fungus features a dimitic hyphal system, generative hyphae with clamp connections, and dendrohyphidia (small, spiderweb-like hyphae)–a characteristic, which although common in the family Corticiaceae, is seldom encountered in the Polyporaceae. The spores of Fuscocerrena portoricensis are hyaline, cylindrical, and non-amyloid, measuring 5–7 by 2–2.5 μm.[1]

Habitat and distribution

Fuscocerrena portoricensis is found in eastern North America, Central America, and South America, and has also been collected in Cuba and Jamaica. It grows on decomposing deciduous wood.[1]

References

  1. 1 2 3 Ryvarden, Leif (1982). "Fuscocerrena, a new genus in the Polyporaceae". Transactions of the British Mycological Society. 79 (2): 279–281. doi:10.1016/s0007-1536(82)80114-9.
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