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24-11-2017 16:11

Gilbert MOYNE

Bonjour,Voici une petite espèce qui me pose encor

23-11-2017 17:12

Malcolm  Greaves Malcolm Greaves

I took a sample of wood from a rotten stump with S

15-11-2017 23:50

Danny Newman Danny Newman

note cruciate/sulcate ostiolar necks. paraphyses

17-03-2016 09:59

Pascal RIBOLLET

Bonjour Forum, Voici une récolte qui semble appa

23-11-2017 15:27

Zoltan Lukacs Zoltan Lukacs

Hello Everybody,among the scales of pine cone. Do

22-11-2017 22:38

Garcia Susana

He encontrado un grupo de peritecios creciendo inm

23-11-2017 18:26

Andgelo Mombert Andgelo Mombert

Bonsoir à tous,Sur branchette de feuillus, en fé

09-11-2017 19:35

Stephen Martin Mifsud Stephen Martin Mifsud

I found this greyish mould with a silvery tinge co

23-11-2017 22:03

Nicolas VAN VOOREN Nicolas VAN VOOREN

Je suis très heureux de vous annoncer la parution

22-11-2017 17:32

Pérez del Amo Carlos Manuel Pérez del Amo Carlos Manuel

Hola amigos: Encontramos esta Otidea el pasado sÃ

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Durella macrospora?
Philipp Eschmann, 30-03-2022 14:45
Philipp EschmannGrüezi

I collected this yesterday in dry state and it is mostly dead. Substrate is Fagus sylvatica. Apothecia are up to about 0.5mm in diameter and full of lipid contents, so much that it accumulates on the surface of some apothecia. Ascus apex is red and sometimes blue in IKI and blue when pretreated with KOH. I had a hard time finding spores and most of them are at least partially dead. Their size is roughly 15.2 - 18.1 x 3.3 - 4.2

Can i nonetheless file this as Durella macrospora?

kind regards
PhilEsc
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Piotr Perz, 30-03-2022 14:52
Re : Durella macrospora?
Si :-)
Philipp Eschmann, 30-03-2022 14:59
Philipp Eschmann
Re : Durella macrospora?
thx :-)
Hans-Otto Baral, 30-03-2022 16:08
Hans-Otto Baral
Re : Durella macrospora?
Yes, and it is the amyloid form with the abundant hyaline exudate droplets around the paraphyses which I recently missed in the inamyloid form from Ethan Crenson.
Piotr Perz, 30-03-2022 16:22
Re : Durella macrospora?
About the hyaline, strong refractive interhymenial droplets. This seems not to be Oil (sensu Oil droplets inside the spores), because they are CRB+, but they are not VBs, because they are still present in dead apos, as far I remember. 
And something interesting I saw: the droplets are loosing they refractivity in KOH, but still a non refractive shield is visible.
Hans-Otto Baral, 30-03-2022 16:44
Hans-Otto Baral
Re : Durella macrospora?
Of course they are not VBs which occur only inside cells. :-)

Yes, but I see that Stip once noted CRB- for them (HB 6645) and I noted KOH-inert (HB 4393).
Piotr Perz, 30-03-2022 16:50
Re : Durella macrospora?
Oooo, MB's :-)
Mysterious bodies.Â