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11-11-2025 20:16

yellow discs on a Quercus robur leaf
Bohan Jia

Hi, lastly I have found these tiny yellow decayin

09-11-2025 13:20

Ascomycete on Rubus.
Josep Torres Josep Torres

Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Phacidium
Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Allophylaria subliciformis?
Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

04-11-2025 14:53

Leptosphaeria?
Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

08-11-2025 09:15

Mollisia sur Pinus
Michel Hairaud Michel Hairaud

Bonjour, Pouvez vous m'aider à identifier ce Mol

06-11-2025 16:50

Hymenoscyphus sp?
Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

05-11-2025 11:33

Cladosporium ?
Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Hymenoscyphus on blueberry.
Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Protounguicularia transiens?
Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

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Scutellinia (?) ... with light hair.
Mirek Gryc, 25-06-2021 11:04
Hello

One more collection sent by a colleague.
I do not have any idea, looks like Scutellinia? However, I have never seen this genre with such a clear hair.
Maybe some suggestions?
In principle, all the most important features are presented in the pictures.
Spores: Me = 17.6 × 17.1 um; QE = 1 (with ornamentation)
Hair up to 400 um long
Ascomata: 3-5 mm in diameter.
greetings
Mirek

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Charles Aron, 25-06-2021 15:03
Charles Aron
Re : Scutellinia (?) ... with light hair.

Hi Mirek,


To me, the spores are suggestive of Scutellinia trechispora which I come across quite frequently on damp, calcareous soil. However, the pale hairs are strange and my trechispora specimens are usually larger and with longer hairs.


Best wishes,


Charles.

Mirek Gryc, 25-06-2021 15:23
Re : Scutellinia (?) ... with light hair.
Hi Charles
I support completely the opinion when it comes to spores, typical for S. Trechispora. I had the pleasure of examining this species.

Other features are not compatible with this species. That's why I decided to post it on the forum.

Thank you for your opinion, at least two of us who think the same :)

However, I do not believe that this species can be so variable? I have examined a few fruiters, all have identical features. Their hair does not match this most.

I was hoping that someone already met with such ascomata.

Have a nice day.
Mirek
Charles Aron, 25-06-2021 15:53
Charles Aron
Re : Scutellinia (?) ... with light hair.

Hi again Mirek,


I've come across considerable variability both within Fb size and hair length but I've never seen it with such pale hairs. It looks like there might be an association with moss/algae from your pictures while I mostly find trechispora on bare soil.


Charles.

Marcel Vega, 25-06-2021 16:12
Re : Scutellinia (?) ... with light hair.
Hi Mirek,
your colleague should try to get a spore print and then compare it with Ramsbottomia.
Cheers,
Marcel
Malcolm Greaves, 25-06-2021 16:19
Malcolm Greaves
Re : Scutellinia (?) ... with light hair.
I cannot add much other than to totally agree with you both. I see S trechispora quite often but with much longer and darker hairs. The spores although slightly small are a good fit and I don't know of any other species with these truncated spines.
I look forward to seeing other opinions.
Mal

Mirek Gryc, 25-06-2021 18:24
Re : Scutellinia (?) ... with light hair.
Hello everyone and thank you for comments!

@Marcel:

Do you know the Ramsbottomia species with such hair?

I was wondering about Ramsbottomia but I did not find any similar. In addition, Ramsbottomia spores have sharp spikes?

@Charles

From what I know, ascomata grown on a layer of rotting leaves of Quercus.

I just got a message from my friend, gathered fresh Ascomata.

If someone is interested in examining this collection, we will gladly send a few Ascomata.

greetings
Mirek
Mirek Gryc, 25-06-2021 18:43
Re : Scutellinia (?) ... with light hair.
@ Malcolm
Spores actually slightly smaller but Ascomata was not perfect. Too small percentage of ASCI was mature to recognize Ascomata for mature.
To perform the measurement, I chose spores that were devoid of gel sheath and spikes were clearly visible.
Thank you