Three encrusting/bracket fungi

[SheffieldLass]

I came across these yesterday, and need confirmation ...

The first, on birch, looks like Chondrostereum purpureum to me, but it did bleed (purple-red) when I scored it, but there is no mention of that in the books I've got. Is it known to bleed?


The second, also on birch (90% sure) ... I wondered if it was a resupinate version of a Trametes or Bjerkandera adusta, but the pores go right through the depth of the fungus (7mm), and there is only a very thin flesh, which suggests not. Taste insignificant. Smells like plasticine. It is refusing to give a spore print, and I only found a couple of spores in the squash, so not sure that they are from this or are vagrants. The bluish tinge looks as if it ought to be distinctive, so perhaps Postia? The only thing is I don't have much info on them, and there doesn't seem to be much on the web either.


The third looks to me very much like Stereum hirsutum ... it doesn't bleed. Only the tree it is on is Pine (Pinus sylvestris), unless I'm very much mistaken, which would appear to be rather unusual, at least according to the British Checklist .... I've shown some of the bark. And yes, those are pines in the background, but it is a mixed wood.


Melanie

[Chris Yeates]

hello fellow insomniac . . .

I'm sure that 1 is indeed Chondrostereum

2 I don't think is Bjerkandera but that's as far as I would go

3 certainly looks like S. hirsutum but, as do you, I take note of the comments in Legon and Henrici (it's such a pity that MykoNik felt driven away from a site in which he would probably find himself quite at home today - dare one say)

nuff said

over and out

Chris

[mollisia]

Hallo,

1. Is Chondrostereum purpureum, I agree fully.
In many corticioid fungi a scratch deepens the colour of the hymenium. You can observe that also in most Peniophoras, e.g. P. incarnata. But it is not a colour change to blood red as in the bleeding Stereum species.

2. This is Postia subceasia, I quite sure about this one.

3. Stereum hirsutum would also be my guess. Pine is quite unusual, but it still occurs here and there. For sw-Germany we have one documented record and in ERKISSON, HJORTSTAM & RYVARDEN (1984) pine and spruce is also mentioned for northern Europe. SO I would say an unusual and rare host, but when there is a mixed forest, obviousely including Quercus too, it is not so astonishing that the Stereum creeps from oak to pine there too.

best regards,
Andreas

[NickCantle]

My suggestion for 2 is Postia subceasea too

Doesn't it make you feel great when you suggest something and someone else (like Andreas ) suggests the same

[cybershot]

Originally Posted by NickCantle

My suggestion for 2 is Postia subceasea too

Doesn't it make you feel great when you suggest something and someone else (like Andreas ) suggests the same

More impressive if you post it first mate - and spell it right

David

P.S. Postia subcaesia

[SheffieldLass]

thanks everyone ...

I'm still checking out the identity of the trunk sections with Stereum hirsutum. I went back today to have another look. There are 3 pieces of trunk with it on, and they are all very short sections, the other bits are long, and the coniferous structure is quite obvious on those. So I've got a niggling doubt, and haven't completely ruled out those bits are actually oak, as with both standing oak and pine right in front of me they could have been either ... hadn't realised how similar the bark can look, if what you've got is somewhat weathered and disintegrating ... And even the 'sniff' test for the pine resin smell isn't enough to convince me, I think I can smell it but it may just be wishful thinking! Anyway one was of carry size so I have brought it back home, and I've cut off a small section, but it was too damp to cut cleanly so I am waiting for it to dry out a bit to cut another section and cross-section to look at the grain. The bit I've cut doesn't appear to be rotted much, so I'm hoping the grain structure will be intact enough to work out what it is. (I do know my wood grains, far better than bark, anyway .... did furniture making for a while ....)

Melanie

[Spoon]

Wierd coincidence. I found what I thought was S. hirsutum t'other day. An was as puzzled as you that it seemed to be growing on a pine log

Was with a friend of mine who is a supreme botanist and nay too bad with his fungi and he agreed. So, we left it at S. hirsutum and made a note of the fact it was on pine.

Might not be so uncommon, I'll be interested to see what you come up with.

Oh, and just to add. Where I found it there were no oaks in the immediate vicinity, but it was a mixed woodland with oaks present.