Accès membres

Mot de passe perdu? S'inscrire

05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

« < 1 2 3 4 5 > »
Claussenomyces?
Josep Torres, 13-01-2024 17:29
Josep TorresHello.
Some apothecia sprouting massively on a thin trunk of Laurus nobilis.
Spherical in shape, somewhat flattened, orange when wet and greenish brown when dry. with a diameter of between 0.2 to 0.7 mm.
Octosporic asci, with uncinules at their base and amyloid reaction of their apical apparatus.
Moriform ascospores, poorly septate and with free spore measurements of (12.5) 12.6 - 14.3 (15.6) × (4.2) 4.7 - 5.6 (6) µm.

Based on the data obtained, everything seems to fit with what could be considered Claussenomyces prasinulus, but I already studied Clausennomyces prasinulus last year and the reaction of the apical apparatus to iodine was negative, and I can't find anything more similar than Claussenomyces or Vexillomyces.
Any opinion from you will be well received.
Thank you very much in advance.
Kind regards.

  • message #77913
  • message #77913
  • message #77913
  • message #77913
  • message #77913
  • message #77913
  • message #77913
  • message #77913
  • message #77913
  • message #77913
  • message #77913
  • message #77913
Hans-Otto Baral, 13-01-2024 17:42
Hans-Otto Baral
Re : Claussenomyces?
Amyloidity excludes these. Any paraphyses? Why are all elements dead? The excipulum would be important.

Perhaps a Rodwayella?
Josep Torres, 14-01-2024 14:57
Josep Torres
Re : Claussenomyces?
Thanks Zotto.
The apothecia were not at their best and unfortunately the ascos were dead.
I add a couple of images of the paraphyses, one in water and the other in Lugol, these filiform, septate paraphyses, with intracellular pigment, some branched and that do not protrude above the level of the asci.
Again thank you very much for your help.
Kind regards.
  • message #77921
  • message #77921
Hans-Otto Baral, 15-01-2024 11:32
Hans-Otto Baral
Re : Claussenomyces?
Yes, this would fit Rodwayella. R.sessilis would be an option, but the group is difficult.
Josep Torres, 15-01-2024 14:56
Josep Torres
Re : Claussenomyces?
Thanks Zotto, it is best to leave it open like Rodwayella cf. sessilis or as Rodwayella sessilis sl.
It fits very well with the little information I have been able to find on Rodwayella sessilis.
Kind regards.
Hans-Otto Baral, 15-01-2024 16:41
Hans-Otto Baral
Re : Claussenomyces?
In my folders it is in Pezizellaceae
Josep Torres, 16-01-2024 17:37
Josep Torres
Re : Claussenomyces?
Thanks Zotto.
The information in your folder is very interesting, including a very detailed description of microscopy.
Kind regards.