Accès membres

Mot de passe perdu? S'inscrire

06-05-2019 19:45

Imperfect ? on wood
Ethan Crenson

I found this group of tiny black sphaeroid fruitin

09-05-2019 18:31

Scutellinia sp.
Guy Buddy

Found on a soggy, well decayed hardwood in Pennsyl

09-05-2019 20:49

Helvella?
Filip Fuljer Filip Fuljer

Hello everyone,we found one strange species from t

09-05-2019 11:49

Mollisia
Castillo Joseba Castillo Joseba

Me mandan el material desde galicia, recolectado e

08-05-2019 16:01

Hy. vernus on Pinus cone?
Viktorie Halasu Viktorie Halasu

Hello,I've found this nice Hymenoscyphus last week

08-05-2019 15:44

Lachnaceae?
Guy Buddy

Fruiting from a dead Quercus leaf from the forest

08-05-2019 17:28

Black acervuli with strange brown "phragmo"conidia
Edvin Johannesen Edvin Johannesen

These small, black cushions were collected on a th

07-05-2019 21:54

coelomycete on Juncus with magnificent striated conidia
Alain GARDIENNET Alain GARDIENNET

Has anybody of you ever met this amazing pycnidial

08-05-2019 07:36

Literature request - Larsen, Anthracobia
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,could someone send me this thesis, please?La

04-05-2019 10:34

Paratrichophaea sp.?
Gao Hanxing

Hello all, I found this pyrenomycete, which I ass

« < 568 569 570 571 572 > »
Unknown fungus on Quercus stick.
Guy Buddy, 02-05-2019 15:07
Ver long, slender asci, inamyloid. Spore measure ~11.3 × 4.3 µm. Slender sinuous paraphyses. Thanks!
  • message #57520
  • message #57520
  • message #57520
  • message #57520
  • message #57520
  • message #57520
Jacques Fournier, 03-05-2019 15:08
Jacques Fournier
Re : Unknown fungus on Quercus stick.
Hi,
asci and ascospores remind me of Lopadostoma, though the apical ring should be amyloid. But in this genus it is small and easily overlooked.
I wonder if the black pustules are single ascomata or represent several ascomata surrounded by a stroma. A close-up on a horizontal or better a vertical section would answer this question.
Are you related to Buddy Guy?
Cheers,
Jacques
Guy Buddy, 03-05-2019 16:14
Re : Unknown fungus on Quercus stick.
Thanks Jacques.  Unfortunately this sample got ignored and I did not spend a lot of time on it.  I added a photo of the asci in melzers.  I dont see any reaction.  Picture three is the ascoma cut open, it appears to be one large perithecia, not loculated. The spores do look good for Lopadostoma, but i dont see any species that are not loculated.  Maybe Barrmaelia?
  • message #57539
Guy Buddy, 03-05-2019 17:56
Re : Unknown fungus on Quercus stick.
section
Jacques Fournier, 03-05-2019 18:26
Jacques Fournier
Re : Unknown fungus on Quercus stick.
this is much helpful.

There is a layer of some orange brown tissue around the perithecium. If a chip of stroma added to a drop of 5*10 % KOH releases an orange pigment, we are likely dealing with Creosphaeria sassafras, a Xylariaceae which is not uncommon in North America.

Jacques
Guy Buddy, 03-05-2019 20:57
Re : Unknown fungus on Quercus stick.
Thats definitely it! Thanks for your help!
  • message #57545