Calycellina sp. - Forum ASCOFrance

30-06-2025 14:45

is this a Hymenoscyphus on Nothofagus?

Götz Palfner

This is a quite common species on Nothofagus wood

30-06-2025 12:09

Black erumpent on Populus (Ascodichaenaceae?)

Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 16:56

Septoria on Impatiens glandulifera

Lydia Koelmans

Please can anyone tell me the species name of the

30-06-2025 06:57

Pezizales --Pyronema?

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

RECHERCHE ARTICLE

ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

25-06-2025 16:56

Scutellinia cejpii ?

Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11

unknown discomycete from Brooklyn

Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Literature Request

Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

28-06-2025 16:00

Salvia leaf parasite

Josep Torres

Hello.A tiny fungus shaped like globose black grai

27-06-2025 14:09

Pyrenomycetous fungi on old stalks of Chamaenerion

Åge Oterhals

I found this pyrenomycetous fungi in mountain area

« < 1 2 3 4 5 > »

Calycellina sp.

Francois Guay, 10-12-2024 04:17

Hi 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

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

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

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

Re : Calycellina sp.

I will try and update here if I get a sequence. Thank you for the precision on VB's.

Accès membres

Forum AscoFrance