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22-05-2025 08:55

Josep Torres Josep Torres

Hello.A Pezizal sprouting scattered in small group

21-05-2025 17:28

éric ROMERO éric ROMERO

Bonjour Tous, Avec la bonne fiche cette fois (mer

22-05-2025 17:17

Per Marstad Per Marstad

I have found this on Alnus glutinosa. Growing unde

19-05-2025 09:42

Josep Torres Josep Torres

Hello.An ascomycete photographed on April 20, spro

21-05-2025 08:31

Josep Torres Josep Torres

Reddish-brown, grain-like ascomata, measuring 0.7â

20-05-2025 09:37

Josep Torres Josep Torres

Hello, an anamorph photographed last April 20th, s

20-05-2025 22:15

Francois Guay Francois Guay

I found this ascomycete at the base of a dead fern

20-05-2025 21:36

Francois Guay Francois Guay

I found this Mollisia sp. on a submerged herbaceou

20-05-2025 10:31

Castillo Joseba Castillo Joseba

me mandan elmaterial seco de Galicia, (España) 

16-05-2025 05:47

Francois Guay Francois Guay

I found this super tiny hyaline asco on fir needle

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¿Pachyella?
Josep Torres, 22-05-2025 08:55
Josep TorresHello.
A Pezizal sprouting scattered in small groups on the peeled surface of a trunk lying on the ground in a fluvial forest next to a stream, with specimens deformed by pressure between them.
Ascomata of considerable size, some exceeding 4 cm, brown with faint violet hues, not exuding any latex upon contact or injury, and of fragile consistency.
Hyphae of the medullary exciple are filamentous, with an intricate texture and some very evident swellings.
Beneath these, other hyphae are more globose and larger.
Octosporic asci with only a slight, very diffuse amyloid reaction to Melzer.
Ellipsoidal ascospores decorated with obvious warts, very visible in Cresyl Blue, with spore measurements obtained by natural sporulation and in water of:
(19.3) 19.9 - 22.5 (23.8) × (9.8) 10.1 - 11.1 (11.4) µm
Q = (1.7) 1.9 - 2.2 (2.3) ; N = 40
Me = 21.2 × 10.6 µm ; Qe = 2
If for any reason you need more images, just ask.
Considering its lignicolous habitat and the diffuse amyloid reaction of the asci to Melzer, I think of Pachyella, but without any conviction. It's even possible that I had studied this species before, but I can't remember and I'm completely stuck. Any feedback from you will be appreciated.
Thank you very much in advance.
Best regards.
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Marek Capoun, 22-05-2025 17:04
Marek Capoun
Re : ¿Pachyella?
Hello, Josep,
I would probably look in the genus Phylloscypha.
Marek
Nicolas VAN VOOREN, 22-05-2025 17:22
Nicolas VAN VOOREN
Re : ¿Pachyella?
Marek is right.
Josep Torres, 23-05-2025 07:44
Josep Torres
Re : ¿Pachyella?
Thank you both very much.
Of course, Phylloscypha, and most likely Phylloscypha phyllogena. I rightly mentioned in my post that I didn't rule out having studied it before. I've studied Phylloscypha phyllogena on a couple of occasions, and in both cases, it grew in the soil. In addition to the more pronounced amyloid reaction of its asci, the fact that it appeared directly on the wood confused me greatly. Based on this fact alone, I ruled it out from the start.
Best regards.