Accès membres

Mot de passe perdu? S'inscrire

04-01-2025 16:08

Robin Isaksson Robin Isaksson

Hi!Anyone that has this one: Lowen, R. 1989. Two n

01-01-2025 13:45

Enrique Rubio Enrique Rubio

THESE BLACKISH ASCOMATA WERE SEMI-IMMERSED IN A HA

01-01-2025 11:35

Marc Detollenaere Marc Detollenaere

Dear Forum,On rotten wood of Fraxinus excelsior I

02-01-2025 17:05

Jean-Luc Ranger

je ne trouve pas de correspondance pour cette form

30-12-2024 15:53

Jean-Luc Ranger

Je pense être dans ce genre mais sans certitude:

31-12-2024 15:39

Jean-Paul Priou Jean-Paul Priou

Tout d'abord, meilleurs voeux de bonne santé à t

30-12-2024 23:57

Robin Isaksson Robin Isaksson

Hi! This one i have hard to find anything on. Does

31-12-2024 15:12

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et à tous,Pourriez-vous me conf

15-12-2024 15:44

Yannick Mourgues Yannick Mourgues

Here is a Lachnum found on dead branches of Erica

15-12-2024 14:34

Yannick Mourgues Yannick Mourgues

HI. Found this very small cf. Olla specie on deco

« < 1 2 3 4 5 > »
Enigmatic pyrenomycete
Enrique Rubio, 01-01-2025 13:45
Enrique RubioTHESE BLACKISH ASCOMATA WERE SEMI-IMMERSED IN A HARDWOOD BRANCH (PROBABLY QUERCUS) PARTIALLY BURIED IN THE GROUND, NEXT TO STROMATA OF XYLARIA HYPOXYLON. THE ASCOMATA, UP TO 700 MICRONS LONG, HAVE A BLACKISH PERITHECIAL VENTER IMMERSED UNDER THE WOOD AND A LONG NECK WITH A FIMBRIATED OSTIOLE THAT AGGLUTINATES SPORE BALLS OF DISCHARGED ASCOSPORES.
THE ASCI ARE CYLINDRICAL, WITH A DOUBTFUL OR INCONSPICUOUS APICAL APPARATUS MLZ. NEGATIVE AND THEY HAVE EIGHT OBLIQUELY UNISERIATE ASCOSPORES. THE PARAPHYSES ARE ABUNDANT, IN SOME CASES WITH MONILIFORM SEGMENTS AND THEY EXCEED THE LEVEL OF THE ASCI.
THE MATURE ASCOSPORES ARE BLACISH BROWN, THEY HAVE AT LEAST ONE GERM PORE (RED ARROW), SOMETIMES TRANSVERSE SEPTA, A COMPLEX SYMMETRIY AND PERHAPS A SHORT GERM-SLIT ONLY WELL VISIBLE IN MELZER'S REAGENT (BLUE ARROW).
I CANNOT FIND AN APPROPRIATE GENUS FOR THIS FUNGUS, NOT EVEN WITHIN THE MELANOSPORALES, SO I AM ASKING FOR SOME CLUE TO SOLVE THIS ENIGMA.
I WOULD LIKE TO TAKE THIS OPPORTUNITY TO WISH YOU A HAPPY NEW YEAR.
  • message #81184
  • message #81184
  • message #81184
  • message #81184
  • message #81184
Alain GARDIENNET, 03-01-2025 08:17
Alain GARDIENNET
Re : Enigmatic pyrenomycete
Hi Enrique, 
Your fungus should not be too far from Bellojisia rhynchostoma.
Happy new year for you, and forum !
Alain
Thorben Hülsewig, 03-01-2025 10:48
Re : Enigmatic pyrenomycete
Hi Enrique,

Perhaps you have found Corylomyces selenospora.

best regards,
Thorben
Enrique Rubio, 03-01-2025 12:45
Enrique Rubio
Re : Enigmatic pyrenomycete
Some colleagues had initially pointed me towards Corylomyces and later towards Bellojisia. I think this fungus could belong to the latter genus, because by the morphology of the ascomata, the asci with an inconspicuous apical apparatus and the presence of abundant paraphyses. But the spores are quite different from those of J. rynchospora. Unfortunately there is too little material to attempt a culture and sequencing, but I am very grateful for your help.