Boletus ID Please

funkyfungus · #1 (**permalink**) 13-08-2009, 01:37 AM

Hi

Could someone please help with these:

This one had bright yellow pores (not displayed very well in picture) and bruised blue almost immediately.

I thought this may be Leccinum scabrum (found near birch tree), please correct me if I'm incorrect.

Thanks

mollisia · #2 (**permalink**) 13-08-2009, 10:11 AM

Hello,

for the first one I think it is Boletus pulverulentus var. mougeotii. The blueing is really somewhat too strong for one of the Xerocomus species around X. rubellus. The strongest blueing of these is X. cisalpinus, but I have never seen that species without cracks in the cap and the blueing is usually slower (although quite intense).

The second one is indeed Leccinum scabrum, the Birch Bolete.

best regards,
Andreas

flaxton · #3 (**permalink**) 13-08-2009, 11:04 AM

As I have never come across (or heard of until today

) Boletus pulverulentus var. mougeotii from a photo alone I would be more inclined to go with something that is recognized in the Checklist such as X. ripariellus although that does normally only turn blue slowly.
What was the habitat?

Mal

funkyfungus · #4 (**permalink**) 13-08-2009, 11:44 AM

Thanks for your replies

It was found on parkland i.e short grass with a scattering of deciduous trees (actually found on the grounds of my work place). There was a sycamore and beech tree close by. If it helps, this was probably the smallest Boletus I’ve come across; the cap (which was richer red than shown in the picture) was approx 5cm across and a total height of approx 6cm.

I did take other pics if you would like me to upload them.

Cheers

flaxton · #5 (**permalink**) 13-08-2009, 11:54 AM

Another possiblity could be X armeniacus which can have a red cap and does turn blue more quickly.

Mal

mollisia · #6 (**permalink**) 13-08-2009, 01:01 PM

Hello,

if it was even richer red than in the foto, the Boletus pulverulentus can be cancelled.
Then it can only be one of the red capped Xerocomi, just as there are X. rubellus (typical for such a habitat, but not that strongly blueing), X. cisalpinus (usually cracking cap) and X. ripariellus (in other, damper habitats).

best regards,
Andreas

flaxton · #7 (**permalink**) 13-08-2009, 09:01 PM

Suggestion from Alan Hills X ripariellus

Mal

mollisia · #8 (**permalink**) 13-08-2009, 09:08 PM

Hello,

this is the only of the Xerocomi which I have not seen yet. And as this one looks strange to me, it must be ripariellus. Determination can be so easy!

Seriousely: I have not known that ripariellus may grow in dry habits, that's why I excluded it. So try to see the ribs on the spores, which is in most cases only faintly visible even in very good optics. Otherwise dry it and send it to Kew, may be they think it's worth to throw it in the REM ...

best regards,
Andreas

flaxton · #9 (**permalink**) 13-08-2009, 10:51 PM

Andreas

This is not aimed at you but just another reminder for others that the Scientific name derives from "riparian" which is the land alongside a stream. So this species is normally found in damp areas with Salix or Alnus but it is sometimes found in parkland where the soil tends to stay wet.

Mal

mollisia · #10 (**permalink**) 13-08-2009, 11:02 PM

Quote:

Originally Posted by flaxton

Andreas

This is not aimed at you but just another reminder for others that the Scientific name derives from "riparian" which is the land alongside a stream. So this species is normally found in damp areas with Salix or Alnus but it is sometimes found in parkland where the soil tends to stay wet.

Mal

Hi,

what reminds again me this time, that I had once the case that I found in parkland Lactarius lacunarum ....

best regards,
Andreas