Accès membres

Mot de passe perdu? S'inscrire

14-11-2025 16:26

Marian Jagers Marian Jagers

Hello everyone, On dead wood of Cytisus scoparius

15-11-2025 09:21

Josep Torres Josep Torres

Hello.An anamorph resembling Capronia is sprouting

14-11-2025 18:31

Lothar Krieglsteiner Lothar Krieglsteiner

Hello,can somebody provide me with a file of:Rothe

12-11-2025 21:47

ruiz Jose

Hola a todos, me envían esta colección en resto

12-11-2025 09:25

Viktorie Halasu Viktorie Halasu

Hello, I need help with a pale terrestric Pseudom

11-11-2025 20:16

Bohan Jia

Hi, lastly I have found these tiny yellow decayin

09-11-2025 13:20

Josep Torres Josep Torres

Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

« < 1 2 3 4 5 > »
¿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.
  • message #82707
  • message #82707
  • message #82707
  • message #82707
  • message #82707
  • message #82707
  • message #82707
  • message #82707
  • message #82707
  • message #82707
  • message #82707
  • message #82707
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.