
13-06-2025 09:41
Hello.A cerebriform ascomycete sprouting scattered

13-06-2025 16:34

Bonjour,Un petit discomycète qui me résiste. Il

21-07-2025 19:22
Ethan CrensonHello all, Here is an Orbilia found by a friend

14-07-2025 11:20

Bonjour, Voici une espèce de (?) Hyaloscyphace

18-07-2025 23:03
Hello.Fruitings between 51 and 130 microns in tota

16-07-2025 17:34

Hello,I have trouble distinguishing above mention

16-01-2023 21:31

Hello, Nearby the find of Calycina claroflava on
Aquatic ascomycete.
Josep Torres,
13-06-2025 09:41
A cerebriform ascomycete sprouting scattered on the surface of a trunk submerged in a clear stream.
Ascomata measuring up to 4 mm long and 2 to 2.5 mm wide, I was particularly struck by how tough and tenacious these ascomata were.
Very thin conidiophores arranged parallel in a palisade-like pattern produce globose conidia with a large lipid droplet inside that occupies three-quarters of the spore.
An amyloid reaction is observed from the base to the middle of the hymenium with Melzer's Reagent.
No apparent reaction to KOH.
Some of the images show clusters of these supposed conidia, which I wouldn't completely rule out asci.
These presumed conidia measured in water:
(3.6) 3.8 - 4.4 (4.7) × (2.9) 3.2 - 3.8 (4) µm
Q = 1 - 1.3 (1.4) ; N = 40
Me = 4.1 × 3.6 µm ; Qe = 1.1
I admit I don't even know where the air is coming from.
Any opinions would be welcome.
Thank you very much in advance.
Best regards.
Josep Torres,
17-06-2025 14:09
Re : Aquatic ascomycete.
Any suggestions.......
Josep Torres,
20-07-2025 14:34
Francois Guay,
22-07-2025 18:39

Re : Aquatic ascomycete.
Very interesting, thank you for the follow-up!
Hans-Otto Baral,
26-07-2025 09:29

Re : Aquatic ascomycete.
Hi Josep
by accident I looked again in your thread. What a shame that I did not realize this being an Ascocoryne! Now the things are clear thanks to your DNA analysis.
I annotated your tree below but could not name all clades because GenBank is presently out of order.
As your sample is identical with OP023244, I conclude that it is also identical with a Polish sample on Salix not in GenBank (BRA CR32406), which had both conidiomata and apothecia, the latter regrettably overmature. It is so far the only case with apothecia within this "laurisilvae-clade".
A. laurisilvae is only known from its anamorph. It looks very much like yours, despite the genetic distance (see below).
Do you have any idea about the substrate? It looks like a deciduous tree. Do you have the wood to check its anatomy?
I would be pleased to receive the collection data, also the sequence and its ab1 file. And it would be great if we could use your photos in our work. Do you have a scale for your pics?
by accident I looked again in your thread. What a shame that I did not realize this being an Ascocoryne! Now the things are clear thanks to your DNA analysis.
I annotated your tree below but could not name all clades because GenBank is presently out of order.
As your sample is identical with OP023244, I conclude that it is also identical with a Polish sample on Salix not in GenBank (BRA CR32406), which had both conidiomata and apothecia, the latter regrettably overmature. It is so far the only case with apothecia within this "laurisilvae-clade".
A. laurisilvae is only known from its anamorph. It looks very much like yours, despite the genetic distance (see below).
Do you have any idea about the substrate? It looks like a deciduous tree. Do you have the wood to check its anatomy?
I would be pleased to receive the collection data, also the sequence and its ab1 file. And it would be great if we could use your photos in our work. Do you have a scale for your pics?
Very strange is the amyloid reaction, we did not see that in any anamorph of Ascocoryne!
Zotto