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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

31-10-2025 09:19

Lothar Krieglsteiner Lothar Krieglsteiner

Can somebody provide me with a file of:Rogerson CT

30-10-2025 03:53

Ethan Crenson

Hi all,  I would like an opinion on whether this

09-08-2025 13:13

Maria Plekkenpol Maria Plekkenpol

Hello,Yesterday I found these on burnt soil. Apoth

29-10-2025 19:02

Castillo Joseba Castillo Joseba

De la pasada semana en rama posiblemente de hayaPi

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xylaria cinerea?
Dora Papp, 29-01-2024 18:51
Hi all, 

Unfortunately, I cannot provide more info than this image but could this be a Xylaria cinerea? 
Subtrate is hard wood, burried in soil.
in tropical forest of French Guiana


Thank you!
Dora
  • message #78064
Jacques Fournier, 29-01-2024 21:05
Jacques Fournier
Re : xylaria cinerea?
Hi Dora,
a nice Xylaria indeed.
Unlikely X. cinerea which is temperate species, more acutely ended and with a different coating. Identifying a Xylaria in FG is challenging because of the huge number of species, half of them undescribed.
If you wish to make some progress in this genus, don't rely on macrophotos only but make detailed description sheets, details are essential and require thorough observations.
Good luck,
Jacques
Dora Papp, 29-01-2024 21:16
Re : xylaria cinerea?
Thank you Jacques! It is really helpful to be reminded of this and at least exclude cinerea :)

I do imagine that these images are not sufficient with many of the species and at this moment I am still trying to orientate myself in between genera...The success of that at least have been confirmed :)

And yes, the problems with so many undiscribed species.

Thanks again and have a nice day.
Dora Papp, 29-01-2024 21:19
Re : xylaria cinerea?
Jacques, would you send me an example of a detailed description sheet? just to get more familiar what to look at. 
Thanks!!