PhilT69's picture

Two kinds of 'oyster' on conker-tree.

Observed: 21st January 2011 By: PhilT69PhilT69’s reputation in Fungi and LichensPhilT69’s reputation in Fungi and LichensPhilT69’s reputation in Fungi and Lichens
Oyster Mushroom sharing a Horse-Chestnut tree with Lilac Oysterling

There are both Oyster Mushroom (darker, mauveish- grey cap,white gills visible in photo) and Lilac Oysterling (pale brown caps, broader, with cracked and scaley appearance). The tree is a Horse Chestnut in a very busy street.


Caution: Do NOT use iSpot to identify fungi to eat!

Some fungi are very poisonous so a mistaken ID could have serious consequences.

Species interactions

No interactions present.


PhilT69's picture

One species edible , the other not -

The well known Oyster Mushroom is good to eat but the Lilac Oysterling (Panus conchatus) is not edible.

Phil T.

flaxton's picture

I would be surprised if they

I would be surprised if they are not both the same species P ostreatus.

PhilT69's picture

I thought so too, at first -

but close examination of the yellowish-brown ones with 'cracked' area on surface keys out with Panus conchatus.


Phil T.

flaxton's picture

I based my remarks on the

I based my remarks on the fact that P conchatus usually grows on the cut end of a stump or branch rather than the trunk of a living tree. Is that on macroscopic or microscopic features that you used to key out the finds? The spores are much bigger for Pleurotus than panus.

PhilT69's picture

thanks for the info - I guess I was mistaken -

I based my decision on Sterry&Hughes(Collins -'British Mushrms...')p222, where it says : Habitat 'Decayed wood of deciduous trees'.

The photo there is very like mine and '...cap fading with age to ochre or yellowish-brown'.

Sadly I cannot get to microscopic features like the spores!

Phil T.