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14-01-2026 10:02

Olla transiens?
Hulda Caroline Holte

Hello, These ascomycetes were growing on standing

13-01-2026 10:13

Cordieritidaceae sp. on indet. wood w/ Hypoxylon sp. - 305337857
Danny Newman Danny Newman

Cordieritidaceae sp. on indet. wood w/ Hypoxylon s

13-01-2026 07:57

cf. Bombardia on indet. decorticate wood - 304222307
Danny Newman Danny Newman

cf. Bombardia on indet. decorticate woodAppalachia

14-01-2026 07:28

Nemania sp. on indet. decorticate wood - 304131853
Danny Newman Danny Newman

Nemania sp. on indet. decorticate woodAppalachian

12-01-2026 22:02

Coryneum (?) acervuli on oak (?) branch
Ethan Crenson

Hello all, I am hoping someone will have some ins

11-01-2026 20:35

Pyrenomycete on Conifer Wood
Josep Torres Josep Torres

Hello.A very tiny pyrenomycete sprouting sparsely

13-01-2026 18:55

Strossmayeria sp. on indet. decroticate hardwood
Rees Cronce

Strossmayeria sp. on indet. decroticate hardwoodTh

13-01-2026 07:28

Chlorociboria glauca on indet. decorticate hardwood log - 303627368
Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

13-01-2026 07:14

Neodasyscypha cerina on indet decorticate log - 303463318
Danny Newman Danny Newman

Neodasyscypha cerina on indet decorticate logThe S

13-01-2026 09:10

Dasyscyphella chrysotexta on indet. decorticate hardwood - 303900282
Danny Newman Danny Newman

Dasyscyphella chrysotexta on indet. decorticate ha

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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.