Polyporus brumalis (Pers.) Fr.
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common name(s) : Winter Polypore
New classification: Basidiomycota/Agaricomycotina/Agaricomycetes/Incertae sedis/Polyporales/Polyporaceae
Former classification: Basidiomycota/Homobasidiomycetes/Aphyllophoromycetideae
synonyms: Leucoporus brumalis
(unconfirmed synonyms: Lentinus brumalis, Boletus brumalis, Polyporus fuscidulus, Polyporus subarcularius, Polystictus substriatus)
edibility : inedible
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The cap is ochre brown to dark brown, or with reddish shades, tough or rubbery, of circular shape, flat or depressed.
The cap surface is matt to downy-felty.
The cap margin is wavy when old.
The stem is full, central, more or less equal, smooth or covered with small scales. Its colour is identical to the cap's colour : ochre-brown to red-brown, typically darker towards the base. It is covered with a thin white to yellow (hardly visible) network near the top, greenish towards the base and turning brown with age..
The flesh is white, elastic or tough; its taste is not distinctive;
The tubes are whitish to cream, slightly to non decurrent, short (2 to 4mm).
The pores are small (2 to 3 per mm), white to ochre, round or angular.
The spore print is white.
It grows in broad-leaved woods, on stumps or dead branches (rare on conifers). It is found more often in hills or in the mountains, in winter, on beech, oak, or various broad-leaved trees.
The fruiting period takes place from January to March.
Dimensions: | width of cap approximately 6 cm (between 1.5 and 12 cm) |
| height of stem approximately 5 cm (between 1 and 7 cm) |
| thickness of stem (at largest section) approximately 5 mm (between 2 and 10 mm) |
| spores : 5-7 x 2-2,5 microns, cylindrical to incurved |
Distinctive features : tough flesh; medium size pores; winter species; single-coloured stem; non hairy cap
Polyporus brumalis is quite rare and localised in the forest of Rambouillet, and is frequent, more generally speaking
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| | Above : distribution map of Polyporus brumalis in the forest of Rambouillet |
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page updated on 14/01/18