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04-10-2025 02:13

Hymenoscyphus with a reddish stipe
Francois Guay Francois Guay

Hi everyone,   I found this Hymenoscyphus growi

03-10-2025 22:17

White asco on Fagus grandifolia leaf
Francois Guay Francois Guay

Hi everyone,   I found this white, star-shaped

03-10-2025 22:03

Unknown asco found in a root hole
Francois Guay Francois Guay

Hi everyone, I found this weird asco growing on wo

03-10-2025 13:44

Unknown on Populus -> Pyxidiophora species
Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

05-10-2025 16:41

Could this be Bacidina chloroticula in a mat of algae/lichens?
François Bartholomeeusen

Dear forum members, On a mat of dried algae/liche

04-10-2025 02:17

small disco
Masanori Kutsuna

Hello, This is a quite common species on rotten w

03-10-2025 10:25

chaetomium sp sur crotte lapin
Jean-Luc Ranger

Que pensez-vous de ce Chaetomium sp : 10- 10,5 x 6

03-10-2025 09:43

Pyrenomycete on Hedera
Josep Torres Josep Torres

Tiny blackish ascomata shaped like erumpent grains

02-10-2025 09:16

Discomycete on leaves
Josep Torres Josep Torres

Hello.Some tiny apothecia sprouting in a scattered

01-10-2025 20:16

Hymenoscyphus calyculus?
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I would appreciate your opinion on this yell

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Hyaloscypha hyalina?
Yatsiuk Iryna, 23-12-2011 14:00
Yatsiuk Iryna

Hello, forum!


Here is a very tiny white disco (fruitbodies 0,05-0,1 mm in diameter) collected on the wood of Populus tremula. Sorry for the bad-quality photo, that's the only I can do with so small fruitbodies.


With best wishes,


Irina 

  • message #16979
  • message #16979
Yatsiuk Iryna, 23-12-2011 14:01
Yatsiuk Iryna
Re : Hyaloscypha hyalina?

Asci are IKI -(?), 60-70*8-9 um


 


 


 

  • message #16980
Yatsiuk Iryna, 23-12-2011 14:03
Yatsiuk Iryna
Re : Hyaloscypha hyalina?

Spores 9-12*4,2*5,5, with 2-3 large and some small guttules


 

  • message #16981
Yatsiuk Iryna, 23-12-2011 14:09
Yatsiuk Iryna
Re : Hyaloscypha hyalina?
Hairs thin, pointed, approximately 15-20 um long
  • message #16982
Hans-Otto Baral, 23-12-2011 15:22
Hans-Otto Baral
Re : Hyaloscypha hyalina?
Hi Irina

not ntoo bad! Was the wood exeposed so that it can get dry? I suppose this is Hyaloscypha intacta. typical would be the shor thairs and inamyloid asci. They should be without croziers.

Zotto
Yatsiuk Iryna, 23-12-2011 21:40
Yatsiuk Iryna
Re : Hyaloscypha hyalina?

Thank youvery much!


Yes, at the moment the wood is dry. 


And yes, asci are without croziers.


Irina

Yatsiuk Iryna, 24-12-2011 14:17
Yatsiuk Iryna
Re : Hyaloscypha hyalina?

I've looked in Raitviir's key and also got H. intacta (using Dennis I had H. hyalina).


Irina

Hans-Otto Baral, 24-12-2011 14:39
Hans-Otto Baral
Re : Hyaloscypha hyalina?
H. intacta is a species (like H. quercicola) that can grow on attached branches which rapidly dry out when it is a dry weather.  Those species that we find on moist wood on the ground have generally amyloid asci. But occasionally the branches fall down and the species stay there for a while. Therefore I was asking how you found it.

Zotto
Yatsiuk Iryna, 26-12-2011 18:57
Yatsiuk Iryna
Re : Hyaloscypha hyalina?

It was collected on a dead Populus trunk (or maybe on a branch of a great diameter).


Irina