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03-09-2025 21:59

Philippe PELLICIER

La Léchère, Col de la Madeleine, alt 1970m, au s

08-09-2025 19:07

ruiz Jose

Hola me pasan esta recolecta en madera de fraxinus

07-09-2025 08:19

Josep Torres Josep Torres

Hello.Tiny pinkish discomycetes, photographed and

06-09-2025 21:40

David Chapados David Chapados

Hi, Does somebody know the genus that has those b

07-09-2025 11:34

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I have identified this fungus as Hymenoscyph

02-09-2025 11:34

Thomas Læssøe

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

05-09-2025 09:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour, hi everyone,Do you know where the fungari

05-09-2025 18:53

Robin Isaksson Robin Isaksson

Hi! Spores 1 septate; 12-13 x 3um Hairs 35-75

04-09-2025 20:11

Åge Oterhals

Saccobolus on dear droppings. Can any of you confi

03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

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unknown Helotiales?
Björn Wergen, 13-10-2011 09:44
Björn WergenHello again,

this finding seems to be an inoperculate contrary to my mysterious Pezizales, which is perhaps somewhere between Boubovia and Sphaerosporella. It grows on wood of hardwood (Quercus?) and forms brownish-ochraceous fruitbodies which are 2-5 mm broad. There is no stem.
The microscopic features are:
Spores fusiform, very variable in size and form, with a thin gelatinous sheath, hyaline, permanently with 2 bigger oil droplets, 14-20x4-7µm. Asci with 8 spores, short stalked, without croziers, 110-130x8-10µm. Paraphyses with strongly refractive guttules, especially in the apical part, septate and branched. No hairs. Ascus apex in Lugol blue. 

If more information is needed, tell me, I have the finding right here in a plastic box ;)

lg kazyua
  • message #16424
  • message #16424
  • message #16424
Hans-Otto Baral, 13-10-2011 12:12
Hans-Otto Baral
Re : unknown Helotiales?
Hi Kazyua :-)

very fine presentation! Clearly a Hymenoscyphus s.l. (Phaeohelotium). I assume you are sure there is not long stalk hidden in the substrate (that is sometimes overlooked).

The spores do not look very variable. Are you sure with the absent croziers? I would be surprised but this is very important. I thought it could be H. epiphyllus or H. monticola, but I am not very happy with my idea.

A section of the margin and flanks would perhaps also help

Zotto
Björn Wergen, 13-10-2011 15:12
Björn Wergen
Re : unknown Helotiales?
Hi Zotto,

I tried to find some croziers but I did not have success with it. I also thought about a Hymenoscyphus, the size and shape remembered me on H. epiphyllus, but I know this specimen more yellowish...

I will try to make some more photos if there will be the time for it.

regards
kazuya
Hans-Otto Baral, 18-10-2011 19:41
Hans-Otto Baral
Re : unknown Helotiales?
Hi Kazuya

when looking again at your fungus I am sure that it is Hymenoscyphus fulvidulus. This species is somewhat variable, from brownish to grey, but the features all fit including absence of croziers and strongly refractive VBs in the paraphyses.

Zotto
Björn Wergen, 18-10-2011 19:48
Björn Wergen
Re : unknown Helotiales?
Hi Zotto,

many thanks. I didn't check this species again, so I am sorry that I cannot give you some more details.

lg kazuya