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Re: Fungus Of The Day (One identified fungus only please, with species name in attachment comment and in post)

Posted: Thu Aug 24, 2017 6:49 am
by Chris Johnson
A nice find and images, Dave. Not found it here and not sure there are any VC110 records - will check later.

Chris

Re: Fungus Of The Day (One identified fungus only please, with species name in attachment comment and in post)

Posted: Sun Aug 27, 2017 12:22 am
by Waxcap
Thanks Chris,

I went to look on the FRDBI to see the distribution but it's all changed :o I was told that the old records have not been transferred across to the new site yet but it is in hand.

Regards

Dave

Re: Fungus Of The Day (One identified fungus only please, with species name in attachment comment and in post)

Posted: Mon Aug 28, 2017 1:57 pm
by Chris Yeates
Hello all
Rosellinia is one of those genera which is often relatively easy to recognise in the field (with a hand-lens), but which always requires microscopical examination to take further. A major problem is that the tough carbonaceous perithecia remain looking pristine long after the spores have been ejected; one has to check for the presence of jelly-like contents to avoid disappointment.

The species here will have hidden within UK records of R. mammiformis until it was recognised that that name contained more than one distinct species. Accordingly R. britannica was erected to cover finds with longer spores than typical R. mammiformis and with longer "ascal plugs" - in common with most of the Xylariaceae the latter stain beautifully in Lugol's iodine.

More recent work has shown that the name R. marrucciana predates R. britannica and therefore takes precedence. This thread http://www.ascofrance.com/search_forum/50116 gives more details and includes a link to a paper covering the R. mammiformis complex, and contains a useful key to these and similar Rosellinia spp.
cheers
Chris
Rosellinia marrucciana 0b.jpg

Re: Fungus Of The Day (One identified fungus only please, with species name in attachment comment and in post)

Posted: Tue Aug 29, 2017 6:57 am
by Chris Johnson
Nice work. :)

Regards, Chris

Re: Fungus Of The Day (One identified fungus only please, with species name in attachment comment and in post)

Posted: Fri Sep 08, 2017 7:24 pm
by alindsay
Hericium coralloides found last week in Buckinghamshire. Nice!!!

Re: Fungus Of The Day (One identified fungus only please, with species name in attachment comment and in post)

Posted: Sat Sep 09, 2017 6:14 am
by Flaxton
Beautiful.
Mal

Re: Fungus Of The Day (One identified fungus only please, with species name in attachment comment and in post)

Posted: Thu Sep 14, 2017 5:52 pm
by adampembs
Tricholoma sciodes - Beech Knight