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Mot de passe perdu? S'inscrire

21-01-2026 19:55

Nemania aureolutea?
Bohan Jia

Hi,  Could this be Nemania aureolutea? Or did I

21-01-2026 16:32

Lichenicolous coelomycete
Gernot Friebes

Hi,I need your help with some black dots on a lich

21-01-2026 16:48

Hyphomycete on Rubus fruticosus agg.
Gernot Friebes

Hi,after my last unknown hyphomycete on this subst

20-01-2026 17:49

Mollisina acerina ?? Turbinate and hemiamyloid
Hardware Tony Hardware Tony

I offer this collection as a possibility only as e

15-01-2026 15:55

pyrenomycete on Quercus
Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

03-01-2026 15:36

Nomenclature
éric ROMERO éric ROMERO

Bonjour, Pouvez-vous me dire quel est le nom à p

19-01-2026 12:01

Ayuda con esta 1121
Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) 

17-01-2026 19:35

Cosmospora aurantiicola: Gibt es dazu Literatur ?
Arnold Büschlen

Hallo, ich suche zu Cosmospora aurantiicola Lite

16-01-2026 00:45

Hyphodiscus (?) on hardwood, hemiamyloid, staining reddish-orange
Ethan Crenson

Hi all, On decorticated hardwood from a New York

18-01-2026 12:24

Anamorph on an olive tree
Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

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Calycellina sp.
Francois Guay, 10-12-2024 04:17
Francois GuayHi everyone,
I found this ascomycete on decaying leaves and think it might be a Calycellina species, but I'm unsure about the exact identification. Could it be C. araneocincta?

Here are the details:


Substrate: Found on decaying leaves
Apothecia Up to 300 µm wide
Spores 12–15.35 × 2–2.6 µm
Asci 32.5–35.5 µm long, IKI +, clavate
Paraphyses septate with oil content

here is the iNat link for photos: https://inaturalist.ca/observations/254053215

thanks !

Hans-Otto Baral, 10-12-2024 09:51
Hans-Otto Baral
Re : Calycellina sp.
I think the asci are mainly 4-spored. This must be C. lachnobrachya, with whitish apos, usually on Acer and Quercus. C. araneocincta with yellow apos grows on Alnus and Betula. The problem is that hyaline VBs turn yellow with age. The VBs that I see on your pics are all in dead cells, so might havebeen hyaline. The apos look t me too whitish to be araneocincta. Any idea of the host?
Francois Guay, 10-12-2024 15:10
Francois Guay
Re : Calycellina sp.
It makes sense. It was found on Acer, and the apos were more whitish when I found them. It was forgotten in my fridge for one month before I did the microscopy. Thank you, Zotto. I will keep it for DNA sequencing.
François
Hans-Otto Baral, 10-12-2024 16:19
Hans-Otto Baral
Re : Calycellina sp.
The only existing sequence is that by Ethan (OR872184) collected yesterday. None exists for C. araneocincta. I am not sure if such long-stored specimen works, often one gets a contamination.

Note that the content of the paraphyses is not oil which would resist in KOH, these are VBs (KOH-soluble).
Francois Guay, 10-12-2024 16:50
Francois Guay
Re : Calycellina sp.
I will try and update here if I get a sequence. Thank you for the precision on VB's.