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13-12-2025 17:26

Buckwheat Pete

Hello everyone,I have a rather interesting ascomyc

13-12-2025 11:58

Mirek Gryc

HiSupposedly this is a species that occurs quite o

12-12-2025 18:39

Mirek Gryc

Hello everyone.Macrofeatures similar to Mollisia b

09-12-2025 12:06

Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche l'article concernant Hypobryo

07-12-2025 16:07

Arnold Büschlen

Hallo, ich habe in einer Moos-Aufsammlung (epiphy

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Mark Stevens

"Hello everyone,I'm relatively new to microscopy (

08-12-2025 18:59

Lothar Krieglsteiner Lothar Krieglsteiner

.. found by a seminar-participant, I do not know t

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Buckwheat Pete

Hello everyone, Is it possible to at least approx

07-12-2025 17:43

Malcolm  Greaves Malcolm Greaves

This Helvella was in mixed woodland. Uniform cupul

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

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Unknown discomycete.
Bernard Declercq, 05-11-2011 17:38
Bernard DeclercqHi,
I recently collected a discomycete on Hieracium umbellatum with following characteristics:
Apothecia gregarious, disk-shaped, sessile, disk plano-convex, 0,4-0,65 mm diam.; hymenium olivaceous yellow to olivaceous grey-brown; in strong contrast to the receptacle which is blackish brown up to the smooth margin. Asci cyl.-clav., 8-sp., sp. 2-ser., porus IKI-, 94x8-9 µm, arising from croziers. Spores fusiform, straight to slightly curved or inequilateral, with narrowlyu rounded ends, smooth, hyaline, aseptate, 15,5-18x2,5-4 µm, with two large and many small LB's, LC=4-4,5.
Paraphyses slender, base 1,5-2 µm diam., septate; apices capitate and 5,5-7 µm diam., forming an epithecium, covered by brown gel. Ectal excipulum of hyaline gelatinised textura prismatica in a +/-45° angle to the surface, end cells covered by brown gel.
Any idea what this could be?

Best regards,
Bernard Declercq

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  • message #16621
  • message #16621
  • message #16621
  • message #16621
Stip Helleman, 05-11-2011 18:11
Stip Helleman
Re : Unknown discomycete.
Hi Bernard,


This is Calloriella umbrinella, you also might find this species also unther the name Allophylaria soederholmi   
My collection of this species:
http://www.helotiales.nl/Nederlands/Species/Calloriella%20umbrinella.html

Best wishes


Stip
Bernard Declercq, 05-11-2011 20:25
Bernard Declercq
Re : Unknown discomycete.
Hi Stip,

Many thanks.
The species is probably new for my country.

Bernard