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28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

26-03-2024 17:14

Juuso Äikäs

These little black ascos were growing on a dead, d

27-03-2024 22:53

Charles Aron Charles Aron

Hi All,Recently I came across these minute, setose

25-03-2024 13:41

B Shelbourne B Shelbourne

• Hyaloscyphaceae (no VBs), Hyaloscypha: Macro a

25-03-2024 21:27

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, March 2024

26-03-2024 14:37

DAVID MARCOS DAVID MARCOS

Spores (telles qu'elles apparaissent à l'intérie

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-03-2024 11:06

michel bertrand

Bonjour, Malgré de nombreuses recherches, je n'a

25-03-2024 14:08

Ursula Kozik

Bonjour et bonne journée, On m'a envoyé une tro

25-03-2024 03:56

B Shelbourne B Shelbourne

• Scuttelinia: Macro and habitat.• S. scutella

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A small disco that bleeds when cut
Archie McAdam, 17-01-2021 18:24
The asco was a small greyish disco growing on the damp bark of a broadleaved tree which I thought was Alnus glutinosus which grew at the edge of a large pond surrounded by beech and oak trees as well.  The discs grew in ones and twos scattered across the bark.

A general view will show its appearance.  The remarkable feature of bleeding occurred when the fresh fruitbody was cut.  This does not happen when the dried specimen is cut nor when a rehydrated specimen is cut.

The disc was set upon a scanty subiculum of dark hyphae.

There were no hairs.

A dried and a rehydrated specimen were put into KOH.  There was no colour leakage to see with the dissecting microscope.

The asci were 53x4 ?m,  J+ in Melzer's reagent showing a tiny lenticular blue body.

The paraphyses were slender filiform, 1 ?m in diameter with a slightly broader tip.

The escipulum was made up of slightly angular cuboidal cells which stained dark in Melzer.  The edge cells were elliptical to clavate in shape.

A few loose spores were found, 7.7 x 1.5-2 ?m; while  spores inside asci measured 5.9-6.5x1.5
  • message #67129
  • message #67129
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Hans-Otto Baral, 17-01-2021 20:30
Hans-Otto Baral
Re : A small disco that bleeds when cut
Where are you from? Regrettably the micros are in dead state, except for spores. So it is impossible to say if it is a Mollisia or not. But the red colour is strange.

So you see this red colour is confined to fresh specimens, as are many microscopic features. I fear you do not have it fresh anymore?
Archie McAdam, 17-01-2021 22:41
Re : A small disco that bleeds when cut
Sorry I did not say that I found it in a public park near Bingley, Bradford, England.  It is ages since I did find it - on 21 June 2018.  The red colour was confined to the fresh, cut specimen.  When I examined it fresh in water I saw no colour in asci or paraphses.  I do have a dried specimen which did remind me of a Molissia.

Thank you for looking at it.
Hans-Otto Baral, 18-01-2021 07:59
Hans-Otto Baral
Re : A small disco that bleeds when cut
This would be really interesting to recollect and study from the living tissues.
Archie McAdam, 18-01-2021 11:58
Re : A small disco that bleeds when cut
I shall certainly go back again after shut down when I am brave enough to venture so far.  And I shall tell you if I find it.

Many thanks for your help

Archie