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Rigidoporus ulmarius.   Click a photo to enlarge it.   back to list

synonyms: Ulmenporling
Rigidoporus ulmarius Mushroom
Ref No: 9259
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Rigidoporus ulmarius 001 Mushroom
Ref No: 23980
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location: Europe
edibility: Inedible
fungus colour: White to cream, Grey to beige
normal size: over 15cm
stem type: Lateral, rudimentary or absent
flesh: Pore material cannot be seperated from flesh of the cap
spore colour: White, cream or yellowish
habitat: Grows on wood

Rigidoporus ulmarius (Sow. ex Fr.) Imazeki syn. Fomes ulmarius (Sow. ex Fr.)Gill., Polyporus ulmarius (Sowerby) Fr. Ulmenporling. Bracket 1250cm across, 615cm wide, 48cm thick, bracket-shaped, hard and woody, surface knobbly; concentrically ridged, white to ochraceous becoming dirty-brown in older specimens. Tubes 15mm long in each layer, pinkish to orange when young, browning with age, each layer separated by a thin contrasting band of white flesh. Pores 58 per mm, red-orange fading to clay-pink or buff with age. Spores pale yellow, globose, 67.5um in diameter. Hyphal structure monomitic; generative hyphae lacking clamps. Habitat at the base of trunks of deciduous trees, usually elm. Season all year, perennial. Common. Not edible. Found In Europe. The last photograph is from Ted Green, thanks Ted.

Members' images and comments

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Lynn Pepper (United Kingdom) - 26 January 2011

I love this one. I think it belongs in this group. Absolutely brilliant. Growing on an old tree that is covered with these. They don't seem to be affected by the cold as they have survived the snow and freezing temperatures. Taken in Stone, Staffs. U.K.
Rigidoporus ulmarius 001
Lynn Pepper (United Kingdom) - 04 December 2010

This is the other one I mentioned. Taken 26/11/10. The road loosely follows the river trhough the town and these were near the river as were the others.
Rigidoporus ulmarius 001
Lynn Pepper (United Kingdom) - 13 August 2010

This specimen which i think falls into this catagory was growing on a fallen tree by a river where I live, Staffordshire, England. 20 Sept 2009. It was almost as solid as the wood it was growing on, my dog jumped on it and didn't damage it like she has with some others.
Rigidoporus ulmarius 001
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