plate fungus – The Mushroom Diary – UK Wild Mushroom Hunting Blog

I hope people don’t mind me featuring an overdue fungus to the Mushroom Diary. Yes, it’s a common, dull and inedible bracket fungus that appears in many numbers throughout the year. But just in case you’re not sure what this familiar sight is, it will be a pleasure for me to explain for you…

Extremely common in our English woodlands, the Blushing Bracket (Daedaleopsis confragosa) is often found on the dead wood of Willow trees but also on many kinds of deciduous trees.

The semi-circular or fan shaped brackets, often in grouped tiers, can grow up to 15cm across. The upper surface shows distinctive radiating ‘bands’ and has a wrinckled surface texture (smoother when young). They are often thicker at the point of attachment to the wood (up to 5cm) and the margin remains thin and undulating.

As an ‘all year round’ fungus, like a lot of bracket fungi, it’s colour changes dramatically throughout it’s lifetime. When young to middle-aged they are white or have a white-pinkish tinge. They age to a much darker reddish/brown and become a lot tougher and ‘corky’ in consistency.

When younger and more fresh, a little test on the underside can reveal their identity. The white(ish) pores are quite large and are a mix of elongated slots and round holes. Rubbing these with your finger you will see them readily bruise (or should I say ‘blush’) pinkish/red. This is unique to this bracket alone.

When they are very young and quite small I often think they may be something new I haven’t seen before, but over time I have realised that the ‘tickled pink’ test will tell me what it is straight away. It’s always good to have an ‘in the field’ test under your belt.

The Blushing Bracket (Daedaleopsis confragosa) turns a deep red/brown as it ages. Notice the Pinkish/Red bruising on the pores (top-right). This is how it got it’s common name.

QUICK ID TABLE: BLUSHING BRACKET Daedaleopsis confragosa

FRUITING BODY

Up to 20cm diametre / 1.5-5cm thick. Semi-circular or fan shaped. Thin margin. Wrinkled and radially ridged. Found singularly or in tiered groups. White/Pink when young then brown/reddish when old.

PORES / TUBES / SPORE PRINT

Large round and elongated pores.
Spore Print: White (see how to take a spore print here).

HABITAT / SEASON

On dead deciduous wood, esp. Willow. Very common. All year.

EDIBILITY

Inedible. Tough and very bitter.

The Genus POLYPORUS (Polypores): Characteristics to look out for:

• Nearly all are bracket fungi, but a few are with typical cap and stem but with pores instead of gills underside.
• Usually tough or hard and woody. Some are softer and edible.
• Many are perennial or annual.

It’s good to know some mushrooms can appear all year round, especially when they’re edible and good. It’s nearly always the right time to look out for these beauties…

In this case it’s the common and most welcome Oyster Mushroom (Pleurotus ostreatus). Usually growing in medium to large clusters on fallen logs, stumps or standing trunks, it’s one mushroom I always look out for during the ‘out of season‘ months. I mainly choose deciduous woods to visit (some can grow on coniferous wood) where they are most commonly found, especially on beech.

And thankfully they are also one of the most recognisable species out there. The distinctive ‘shell’ shapes and lateral (often minimal or missing) stems with white decurrent gills are all typical characteristics. The caps are convex shaped when young but will flatten out as they grow, often becoming wavy or split at the margin. And just to note: very rarely will you see a ’rounded’ shaped cap, but it does happen.

There is one thing though that the Oyster mushroom is not reliable with – and that is it’s colour (just like my spellchecker telling me I’ve spelt color wrong!). The shades are quite variable, but tend to be in subtle shaded hues of grey/whitish-brown, blue-grey, violet-grey etc. As you can see in these photos, I have stumbled across the grey-brown kind. A variant of the Oyster mushroom named Pleurotus columbinus is more or less the same mushroom but with a striking and beautiful violet cap. I haven’t seen any of those though. Shame.

As most of us all know, Oyster mushrooms are one of the most popular mushrooms to eat on the planet. There are many different species of course, successfully cultivated and sold throughout the world. But here in the UK, you’re best and most reliable bet is our common Pleurotus ostreatus. Cook ’em up in a stir fry one night and enjoy – Happy hunting.

Two separate encounters of the wild ‘shell shaped’ Oyster mushroom. Top: A group of young examples growing on a fallen log. Bottom: Very large and older examples (approx 14-15cm across) growing from a standing trunk.

QUICK ID TABLE: OYSTER MUSHROOM Pleurotus ostreatus

CAP / FLESH

6 – 20cm across. Shell shaped. Convex when young, flattening out. Often split or wavy margin. Subtle variable hues of grey-brown, whitish-brown, blue-grey, violet-grey. Flesh is born or blue-grey.

STEM

2-3cm x 10-20cm. Excentric to lateral or abscent. White with a woolly base.

GILLS / SPORE PRINT

Decurrent. Initially white fading yellowish later.
Spore Print: Pale lilac (see how to take a spore print here).

HABITAT / SEASON

In medium to large clusters on stumps, fallen logs or standing trunks. Mostly deciduous trees such as birch. Sometimes on coniferous wood. All year round.

EDIBILITY

Edible and good.

The Genus PLEUROTUS (Oyster): Characteristics to look out for:

• Shell shaped fruting body with little or no visible stem.
• Growing on wood in clumps/dense groups
• Very decurrent gills.
• Spore print ranges from white to pale lilac.

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