Leccinum pseudoscabrum

SheffieldLass · #1 (**permalink**) 10-07-2011, 12:39 PM

This was found yesterday, close to a line of trees (former hedge) of predominantly Hazel in upland acidic unimproved grassland in Yorkshire. I didn't find it, but was handed it, so no insitu photos. My pics were taken the next morning after hacking it to pieces the previous evening, so the fungus looks a bit the worse for wear ...

The cap is noticeably cracked, the edge doesn't overhang the pores. On cutting the flesh at the stipe top first went pink, then fairly quickly blackish, whilst at the base of the stipe it went blue-grey.

The pileipellis cells were not what I was expecting ... more globose than cylindrical.

Scaber cells.

Spore size was (15.6) 16.4-18.2(19.2) x (5.1) 5.4 - 6.1 (6.4)um, Qav 3.0

Given the habitat, and all the details I'm pretty sure this must be Leccinum pseudoscabrum. It doesn't seem to have been recorded in Yorkshire ...

If anyone is familiar with it, or with Leccinum, your views would be welcome.

Thanks
Melanie

Oh, and those little Coprinopsis on my lawn to the right in the photo ... id welcome too

. Actually I think they are C friesii, or something very close. I only noticed them after I'd taken the photos ....

flaxton · #2 (**permalink**) 10-07-2011, 01:21 PM

Melanie
With all the details fitting I cannot see it being anything else. With Hazel cracked cap clavate elements in the cap - sorted.

Mal

Chris Yeates · #3 (**permalink**) 10-07-2011, 05:25 PM

Quote:

Originally Posted by SheffieldLass

This was found yesterday, close to a line of trees (former hedge) of predominantly Hazel in upland acidic unimproved grassland in Yorkshire. I didn't find it, but was handed it, so no insitu photos. My pics were taken the next morning after hacking it to pieces the previous evening, so the fungus looks a bit the worse for wear
. . . . . It doesn't seem to have been recorded in Yorkshire . . .

Thanks
Melanie

An interesting one, Melanie; I have included it on the Yorkshire list as it is listed in Bramley's A Fungus Flora of Yorkshire (1985) as:
"Leccinum carpini As Boletus rugosus Fr., VC 65"

now the British Basidiomycota Checklist says of "Boletus rugosus:
"rugosus Fr. & Hok, Boletus [nom. illegit, non B. rugosus
Sowerby (1809)] , Boleti fung. gen.: 11 (1835)
A nomen dubium. Listed by Rea (1922)."

As it was Roy Watling who supervised the "Hymenomycetes" section of Bramley I have kept the species as a Yorkshire one, though I have yet to trace the VC65 record - it had to have been made between the publication of The Fungus Flora of Yorkshire by Massee and Crossland (1905) (where it does not appear) and the publication A Catalogue of Yorkshire Fungi by Mason and Grainger (1937) (where it does appear).

It is fair to say that when I get round to reviewing the Yorkshire boletes I would mark this as a doubtful record, so de facto I think we can say that yours is the first Yorkshire record. I trust this gives people an inkling of the complexities of being a county recorder

.

So well done, Melanie

. Did you escape the heavy showers/thunderstorms that hit nearby Scarborough yesterday?

best wishes

Chris

PS try and keep voucher material (even if only partial)

PPS I shall shortly be posting comments on your last contribution to the Fungal Plant Parasites thread

SheffieldLass · #4 (**permalink**) 10-07-2011, 10:53 PM

Thanks Mal and Chris

It was an interesting site in Newtondale. I joined the botanists but kept my eyes out for any fungi. There wasn't that much around, not even rusts ... plants were looking very healthy. I didn't really venture into the woodland, but might have found more fungi if I had. First we did one of the verges in the Forestry and then got to one of two unimproved acid grassland meadows with some flushed areas that hadn't been surveyed before. Nice bit of grassland, plant species rich - the botanists were doing a full list but only managed to cover part of the first field and didn't get onto the second at all. They picked up 6 different sedges. It looks as if it could be good for waxcaps etc, had the right sort of jizz, some nice short turfed mossy banks in it, so I'm hoping for access in the autumn.

We didn't miss the showers - came down very heavy a few times, with thunder. And at Newton upon Rawcliffe a house had had its roof tiles rearranged the evening before by a small whirlwind.

Melanie