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05-05-2025 10:09

Crotte de lièvre
Nicolas Suberbielle Nicolas Suberbielle

Re-bonjour,Cet ascomycète trouvé et étudié par

10-05-2025 18:47

Hyphomycetes
David Chapados David Chapados

Hi, Does anyone have an idea of what this could b

09-05-2025 16:01

Chaetosphaerella phaeostroma (Anamorphe Oedemium minus).
Thomas Flammer

I found a black cushon which might eventually be 

09-05-2025 19:10

Orbilia on Betula bark
Enrique Rubio Enrique Rubio

Hi to everybody.This Orbilia (apos up to 0.5 mm),

02-05-2025 13:29

Bryomyces
Isabelle Charissou

Bonjour, j'aimerais savoir s'il y a eu des public

06-05-2025 13:37

Looking for digital literature of Munk Anders
Thomas Flammer

Munk, Anders (1953). The System of the Pyrenomycet

08-05-2025 20:50

Greyish aquatic asco
Andreas Jacob

Good evening, due to contstant drought I started

07-05-2025 18:29

Olla or Urceolella?
Francois Guay Francois Guay

I found this small hyaline ascomycete on moist, de

08-05-2025 02:22

White Lasiobelonium?
Francois Guay Francois Guay

I found this white, hairy ascomycete on the bark o

08-05-2025 18:32

On Yucca filamentosa - conidia like Robillarda, but aseptate
Ethan Crenson

Hello all, I was looking at leaves of Yucca from

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Orbilia on Viburnum
Philipp Eschmann, 27-07-2022 22:36
Philipp EschmannGrüezi

I found this Orbilia on Viburnum lantana. Might this be O. ovalis or am I completely misled? According to the monograph, it was not found on Adoxaceae yet.


The spores in the picture measure 3.2 - 3.7 - 4.3 x 3.0 - 3.1 - 3.3µm Q avg = 1.2


Thanks in advance and best regards
Philipp

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Hans-Otto Baral, 28-07-2022 09:15
Hans-Otto Baral
Re : Orbilia on Viburnum
Wonderful spore photos! What I miss is a closeup of the asci and paraphyses. The latter seem to be capitate without prominent exudate. There is no ascus apical thickening?

I also arrive at ovalis, but the spores are too small. I measured 3-3.7 x 2.8-3.1, and on a photo with low resolution 3.8-4.5 x 2.5-3.

In sections Orbilia or Ovoideae I do not see a match.

Zotto
Philipp Eschmann, 28-07-2022 21:34
Philipp Eschmann
Re : Orbilia on Viburnum
Hi Zotto

I don't have a steady hand tonight and didn't manage to get good photos. I will try again at the weekend...

But I guess you're right, asci without apical thickenig, paraphyses capitate without prominent exudate. So this points to another section?



Philipp
Hans-Otto Baral, 28-07-2022 21:45
Hans-Otto Baral
Re : Orbilia on Viburnum
The spore bodies point to series Ovales, but it could be a new species I fear.