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Mot de passe perdu? S'inscrire

14-09-2025 22:16

Cheilymenia stercorea
Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Otidea platyspora or something else?
Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

13-09-2025 14:10

Hymenoscyphus on Rubus
Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

13-09-2025 15:43

Recherche
Edmond POINTE Edmond POINTE

Bonjour Christian,J'ai trouvé deux spores ressemb

11-09-2025 16:57

Marthamycetales revision published
Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 23:53

Strickeria kochii?
Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

10-09-2025 17:18

Pseudocoprotus catenipilus ???
Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

02-09-2025 11:34

dark- and small-spored Sordariomycetes on Fraxinus - Denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10527903

07-09-2025 08:19

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

09-09-2025 12:07

Trichobolus
Edmond POINTE Edmond POINTE

Bonjour amis mycologues,Trouvé sur moquette de ch

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Bisporic discomycete
Stefan Jakobsson, 27-05-2020 22:03
In a Finnish alder swamp I found two small apothecia growing on what i thinks is remnants of leafs of Alnus glutinosa. The colour is towards brick red or light orange brown and the diameter is 1.2 mm. The flanks seem covered with adpressed hairs on top of tissue of textura angularis.

To my surprise I found only bisporic asci under the microscope. The spores are cylindrical and the size is (13.5) 14.4 - 15.96 (16.0) × (5.4) 5.6 - 6.0 (6.6) µm. The asci are on average 61.8 × 7.1 µm and the paraphyses are once bifurcately branched, cylindrical 1.5 - 2 µm wide.


This one should not be difficult to identify but so far i have failed. Any help is welcome. Thank you in advance,


Stefan

  • message #63438
  • message #63438
Hans-Otto Baral, 27-05-2020 22:20
Hans-Otto Baral
Re : Bisporic discomycete
Yeah, this is "Hymenoscyphus" kermesinus, and we had it already in this forum, I remember I regretted there that still no sequence exists of it.


Surely it is sclerotiniaceous, but to determine a genus is difficult.
Stefan Jakobsson, 28-05-2020 10:47
Re : Bisporic discomycete
Thank you!

It looks like a Hymenoscyphus but with such hairs I did not combine it with that genus.

Stefan
Hans-Otto Baral, 28-05-2020 11:24
Hans-Otto Baral
Re : Bisporic discomycete
These hairs are inconspicuous and may exist also in hymenoscyphus. But the shape of the ascus apex and apical ring clearly point to a Sclerotiniaceae. I chose the folder Moellerodiscus for the time being.