Polyporus alveolaris
| Polyporus alveolaris | |
|---|---|
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| Scientific classification | |
| Kingdom: | Fungi |
| Phylum: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Polyporales |
| Family: | Polyporaceae |
| Genus: | Polyporus |
| Species: | P. alveolaris |
| Binomial name | |
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Polyporus alveolaris (DC.) Bondartsev & Singer |
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| Synonyms | |
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List
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| Polyporus alveolaris | |
|---|---|
| Mycological characteristics | |
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pores on hymenium |
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cap is offset |
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hymenium is decurrent |
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stipe is bare |
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spore print is white |
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ecology is saprotrophic |
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edibility: inedible |
Polyporus alveolaris, commonly known as the hexagonal-pored polypore, is a species of fungus in the genus Polyporus. It causes a white rot of dead hardwoods. Found on sticks and decaying logs, its distinguishing features are its yellowish to orange scaly cap, and the hexagonal or diamond-shaped pores. It is widely distributed in North America, and also found in Asia, Australia, and Europe.
The first scientific description of the fungus was published in 1815 by Augustin Pyramus de Candolle, under the name Merulius alveolaris. A few years later in 1821 it was sanctioned by Elias Magnus Fries as Cantharellus alveolaris. It was transferred to the genus Polyporus in a 1941 publication by Appollinaris Semenovich Bondartsev and Rolf Singer.
The genus name is derived from the Greek meaning "many pores", while the specific epithet alveolaris means "with small pits or hollows".
The fruit bodies of P. alveolaris are 1–10 cm (0.4–3.9 in) in diameter, rounded to kidney- or fan-shaped. Fruit bodies sometimes have stems, but they are also found attached directly to the growing surface. The cap surface is dry, covered with silk-like fibrils, and is an orange-yellow or reddish-orange color, which weathers to cream to white. The context is thin (2 mm), tough, and white. Tubes are radially elongates, with the pore walls breaking down in age. The pores are large—compared to other species in this genus—typically 0.5–3 mm wide, angular (diamond-shaped) or hexagonal; the pore surface is a white to buff color. The stipe, if present, is 0.5–2 cm long by 1.5–5 mm thick, placed either laterally or centrally, and has a white to tan color. The pores extend decurrently on the stipe. The spore deposit is white.
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