Name: Polyporus arcularius (Batsch) Fr.
Most Confident Observations:
Copyright © 2012 Jimmy Craine (doctorghosty)
Copyright © 2011 Dan Molter (shroomydan)
Copyright © 2011 Hamilton (ham)
Copyright © 2011 Hamilton
Version: 8
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Domain: Eukarya

Kingdom: Fungi

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Polyporales

Family: Polyporaceae

Genus: Lentinus

Species: Lentinus arcularius
  (= Polyporus arcularius)

Notes on Taxonomy: [Edit]

This species is recognized by the scaly pileus surface, ciliate margin, yellowish to brown, centrally stipitate basidiomata, and the large, hexagonal pores (1–2 per mm). According with Louza & Gugliotta (2007), the ciliate margin and the
scaly pileus surface are variable characteristics. Polyporus arcularius is similar to P. tricholoma, but the colour of the basidiomata (pale brown and white to cream, respectively), pores size (1–2 per mm and 4–6 per mm, respectively) and stipe morphology (velutine and glabrous, respectively) distinguish these species. The presence of hyphal pegs in P. arcularius discerns this species from P. arcularioides A.David & Rajchenb. (Silveira & Wright 2005).
KNOWN DISTRIBUTION: Cosmopolitan, except for the boreal zones (Núñez & Ryvarden 2001). In the Brazilian Amazonia, reported in the states of Pará and Rondônia (Gomes- Silva & Gibertoni 2009).
SUBSTRATE: on dead angiosperm.
MA TERIAL EXAMINED: BRAZIL. P ARÁ, Floresta Nacional de Caxiuanã, T.B.Gibertoni, III/2007 (URM 79819).

Brief Description: [See More | Edit]

From The Polyporaceae of North America
By William A. Murrill

This species was described by Batsch as follows: “Stipitatus; stipite subgracili, subclavato; pileo membranaceo convexo, subulato-fimbriato; stipiteque concoloribus, spadiceo-rufis; cellulis latissimis, rhombeis, aequalibus albis.” Fries placed it in the genus Favolus, which he treated as a subgenus under Polyporus. Its tubes are certainly favoloid, but its close relationship to P. Polyporus has kept it near this species rather than with species of Favolus. Wright’s specimen of P. lentus from Connecticut seems nothing more than P. arcularius. There is at Kew also the remains of a specimen from Ohio, which very probably belonged in the same category.

P. arcularius shows little variation except in size throughout its wide range. It occurs on decaying wood and shows much the same habit as P. elegans and P. Polyporus, but differs from these species in occurring more abundantly in the south.

Descriptions: [Create]


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