Calycellina sp. - Forum ASCOFrance

31-05-2026 22:53

Inconnu...

éric ROMERO

Bonjour tous, Je n'ai pas d'idée pour cette esp�

30-05-2026 21:12

Lachnellula sur mélèze

Philippe PELLICIER

Sur branche de mélèze (Larix) près de la neige,

31-05-2026 10:35

Pseudoplectania on birch wood

Hulda Caroline Holte

Hello,I collected this species growing on a rather

25-05-2026 16:35

Anamorphe d'Hypomyces aurantius ? sous saule cendré (Salix cinerea)

Bernard CLESSE

Bonjour à toutes et tous,J'ai trouvé récemment,

29-05-2026 15:35

Fusarium sur Robinier

daniel FERRE

Bonjour à tous,Je voudrais votre aide pour cette

28-05-2026 16:15

Literature request: Caloscypha fulgens f. caesioalba

James Mitchell

Hello,Does anyone have the original publication of

28-05-2026 11:06

Stictidaceae (?) on Typha latifolia - short-spored, I+ - Denmark

Thomas Læssøe

https://svampe.databasen.org/observations/10596750

23-05-2026 11:44

Coprophilous pyrenomycete wild boar dung

Charles Grapinet

Hello, I am having trouble identifying this copro

25-05-2026 16:44

Ascomata under epidermis Carex

François Bartholomeeusen

Hi forum members,During an excursion organised by

26-05-2026 21:25

small ascomycetes on Quercus sp.

Dirk Gerstner

Hello everyone, I'm completely stumped by this li

« < 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